丸ヱム製作所 List of Products and Services

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple areas such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) small screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 - Heat Resistance Suitable for continuous use at a maximum temperature of 260°C. - Wear Resistance With a low friction coefficient, it minimizes wear. - Chemical Resistance Resistant to various acids and alkalis, it performs well even under hydrocarbons and organic solvents. - Mechanical Strength and Dimensional Stability Maintains high strength and rigidity even at high temperatures, exhibiting excellent creep resistance and fatigue resistance over the long term. - Excellent Electrical Properties Demonstrates consistent physical properties across a wide range of frequencies and temperatures. Insulating, conductive, and anti-static materials. 【Application Fields】 - Semiconductors, Medical, Automotive, Aerospace *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple areas such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) small screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 - Heat Resistance Suitable for continuous use at a maximum temperature of 260°C. - Wear Resistance Has a low friction coefficient, minimizing wear. - Chemical Resistance Resistant to various acids and alkalis, maintaining performance even under hydrocarbons and organic solvents. - Mechanical Strength and Dimensional Stability Exhibits high strength and rigidity even at high temperatures, with excellent creep resistance and fatigue resistance over the long term. - Excellent Electrical Properties Demonstrates consistent physical properties across a wide range of frequencies and temperatures. Insulating, conductive, and anti-static materials. 【Applications】 - Semiconductors, Medical, Automotive, Aerospace *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple areas such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) small pan screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 - Heat Resistance: Suitable for continuous use at a maximum temperature of 260°C. - Wear Resistance: Has a low friction coefficient, minimizing wear. - Chemical Resistance: Resistant to various acids and alkalis, and performs well even under hydrocarbons and organic solvents. - Mechanical Strength and Dimensional Stability: Maintains high strength and rigidity even at high temperatures, exhibiting excellent creep resistance and fatigue resistance over the long term. - Excellent Electrical Properties: Demonstrates consistent physical properties across a wide range of frequencies and temperatures. Insulating, conductive, and anti-static materials. 【Application Fields】 - Semiconductors, Medical, Automotive, Aerospace *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple areas such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) pan head screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 - Heat Resistance: Suitable for continuous use at a maximum temperature of 260°C. - Wear Resistance: Low friction coefficient minimizes wear. - Chemical Resistance: Resistant to various acids and alkalis, and performs well under hydrocarbons and organic solvents. - Mechanical Strength and Dimensional Stability: Maintains high strength and rigidity even at high temperatures, exhibiting excellent creep resistance and fatigue resistance over the long term. - Excellent Electrical Properties: Consistent physical properties across a wide range of frequencies and temperatures. Insulating, conductive, and anti-static materials. 【Applications】 - Semiconductors, Medical, Automotive, Aerospace *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple areas such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin adopted in various environments. We offer "(+) small machine screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 - Heat Resistance: Suitable for continuous use at a maximum temperature of 260°C. - Wear Resistance: Has a low friction coefficient, minimizing wear. - Chemical Resistance: Resistant to various acids and alkalis, maintaining performance even under hydrocarbons and organic solvents. - Mechanical Strength and Dimensional Stability: Exhibits high strength and rigidity even at high temperatures, with excellent creep resistance and fatigue resistance over the long term. - Excellent Electrical Properties: Demonstrates consistent physical properties across a wide range of frequencies and temperatures. Insulating, conductive, and antistatic materials. 【Applications】 - Semiconductors, Medical, Automotive, Aerospace *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple areas such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) small pan screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 - Heat Resistance Suitable for continuous use at a maximum temperature of 260°C. - Wear Resistance Has a low friction coefficient, minimizing wear. - Chemical Resistance Resistant to various acids and alkalis, and performs well even under hydrocarbons and organic solvents. - Mechanical Strength and Dimensional Stability Maintains high strength and rigidity even at high temperatures, demonstrating excellent creep resistance and fatigue resistance over the long term. - Excellent Electrical Properties Exhibits consistent physical properties across a wide range of frequencies and temperatures. Insulating, conductive, and anti-static materials. 【Applications】 - Semiconductors, Medical, Automotive, Aerospace *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple categories such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) small screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 ■ Heat resistance ■ Wear resistance ■ Chemical resistance ■ Lightweight *For more details, please refer to the PDF materials or feel free to contact us.

• Engineering Plastics

"PEEK" is a super engineering plastic that exhibits particularly high performance among resin materials. It boasts high performance in multiple categories such as heat resistance, wear resistance, and chemical resistance, making it a high-functionality resin used in various environments. We offer "(+) small pan screws" and "cap screws." Please feel free to contact us if you have any requests. 【Features】 ■ Heat resistance ■ Wear resistance ■ Chemical resistance ■ Lightweight *For more details, please refer to the PDF document or feel free to contact us.

• Engineering Plastics

FASNY is a high-strength plastic screw that excels in electrical insulation, corrosion resistance, and chemical resistance, while also being lightweight and suitable for a wide range of applications. FASNY is developed using a composite material made of glass fiber and special polyamide resin, aiming for high strength, particularly high torque strength. ● For other functions and details, please refer to the catalog.

• bolt

FASNY is a high-strength plastic screw that excels in electrical insulation, corrosion resistance, and chemical resistance, while also being lightweight and suitable for a wide range of applications. FASNY is developed using a composite material made of glass fibers and special polyamide resin, aimed at achieving high strength, particularly high torque strength. ● For other features and details, please refer to the catalog.

• bolt

FASNY is a high-strength plastic screw that excels in electrical insulation, corrosion resistance, and chemical resistance, while also being lightweight and suitable for a wide range of applications. FASNY is developed using a composite material made of glass fibers and special polyamide resin, aimed at achieving high strength, particularly high torque strength. ● For other functions and details, please refer to the catalog.

• bolt

Seawater utilization devices, marine structures, and food machinery have all been subjected to salt damage, as well as environments with chlorine, such as hot water pools and septic tanks, where various stainless steels have been employed. However, conventional stainless steels are prone to localized corrosion in solutions containing chloride ions, such as seawater, and in chlorine environments, which limits their use and necessitates frequent maintenance. MS-270 is an austenitic stainless steel that exhibits superior resistance to chloride corrosion and stress corrosion cracking compared to SUS316 and duplex stainless steels. By adding molybdenum, nitrogen, and copper to high chromium and high nickel, MS-270 is a special stainless steel that significantly enhances corrosion resistance. In addition to its resistance to chloride corrosion, it also excels in acid resistance. MS-270 enables the realization of maintenance-free applications. ● For other functions and details, please refer to the catalog.

• bolt

FASNY refers to the FRTP screws developed by Maruemu Seisakusho, based on the screw manufacturing technology cultivated with stainless steel screws and mold manufacturing technology. FASNY was developed with the aim of achieving high strength using a composite material made of glass fiber and special polyamide resin. Lenny is a type of engineering plastic reinforced with glass fiber and inorganic fillers, which possesses high strength and rigidity among engineering plastics. Additionally, it has a high heat distortion temperature and maintains high strength and elastic modulus at elevated temperatures, making it the most suitable material for structural components that experience significant forces as a metal alternative. Lenny is used in various fields, including automotive and transportation components, general machinery, electrical and electronic parts, leisure and sports goods, and civil engineering and construction materials, steadily accumulating a track record of success.

• bolt

The material of the head wing of the Placolor butterfly bolt is a special polyamide (special nylon) reinforced with glass fibers. The material of the screw part is standardly made of stainless steel (SUS-XM7), which has excellent corrosion resistance. *The standard stock color is light gray, and other colors can be produced on a special order basis, so please feel free to inquire. ●For other functions and details, please download the catalog.

• bolt

Joy2Joint is a collective term for various products molded from a strong engineering plastic made of new materials. Joy2Joint consists of JOY bolts, JOY bag nuts, JOY caps, and more. Joy2Joint is the culmination of many years of research and development in strong engineering plastic screws by Maruemu Manufacturing. Here, a wonderful composite of high-strength plastic and metal has been completed. The advantages of plastic include being lightweight, excellent weather and corrosion resistance, and offering a wide range of design and color options, making its applications limitless. It is the next-generation fastener that can colorfully enhance streets and objects. ● For other functions and details, please refer to the catalog.

• nut

The specific gravity of magnesium is two-thirds that of aluminum and one-fourth that of stainless steel, making it the lightest metal among practical metals used as structural materials. Its alloys excel in specific strength, electromagnetic shielding, and vibration absorption, and are suitable for fastening magnesium alloy housings, as they do not cause galvanic corrosion when in contact with magnesium alloys. This makes them applicable in a wide range of fields, including information technology, home appliances, automobiles, and aviation. A new history of magnesium alloys begins here.

• bolt

Most of the titanium circulating in the general market is pure titanium, which does not meet satisfactory strength requirements, leading to limitations in the adoption of fastening components and the need to increase the number of uses. On the other hand, high-strength α+β type titanium alloys (Ti6Al-4V) have been adopted in some markets, but the α+β type, being difficult to process, is produced through hot forging and machining, making it hard to say that the costs are satisfactory. Therefore, through a unique manufacturing technology for β type titanium alloy (Ti 15-3-3-3) that has strength equivalent to that of α+β type, we have successfully achieved continuous forging mass production and realized cost reduction.

• bolt

Stainless steel was traditionally thought to have "good corrosion resistance but insufficient strength." The only way to achieve strength was by using martensitic types, but their corrosion resistance was far from satisfactory. The Perfect Stainless Steel, developed through new steelmaking technology, is a completely new type of stainless steel that simultaneously solves these issues, offering high strength and high corrosion resistance. ● For other features and details, please refer to the catalog. The direct sales site is here: ↓ https://www.neziya.com/product/perfect.html

• bolt

Stainless steel was traditionally thought to have "good corrosion resistance but insufficient strength." By using martensitic steel, it was possible to achieve strength, but the level of corrosion resistance was still far from satisfactory. The Perfect Stainless Steel, developed through new steelmaking technology, is a completely new type of stainless steel that simultaneously solves these issues, offering high strength and high corrosion resistance. ● For other features and details, please refer to the catalog. You can access the direct sales site here: ↓ https://www.neziya.com/product/perfect.html

• bolt

We have developed a high-performance ferritic stainless steel "SF-160+α" that achieves corrosion resistance and workability comparable to general-purpose austenitic stainless steel, widely suitable for various applications. SF-160+α offers economic advantages by being free of nickel and molybdenum, along with strong magnetic properties, low thermal expansion, oxidation resistance, and advanced refining technology that reduces harmful impurities and inclusions. By adding trace amounts of copper and niobium, it achieves corrosion resistance close to that of austenitic stainless steel (SUS304 series). SF-160+α not only contributes to the value-added activities of customers using austenitic stainless steel but also facilitates the transition from ordinary steel coated products, providing solutions for a wide range of applications. ● For more features and details, please download the catalog.

• bolt

Titanium is classified into three types in terms of materials science: α titanium, α+β titanium, and β titanium. Pure titanium has an α phase, and there are alloys that have α phase, α+β phase, and β phase. Maruemu Manufacturing has successfully commercialized β-type titanium (Ti15-3-3-3) screws that have strength equivalent to the more expensive α+β titanium (Ti6Al-4V), achieving cost reduction. Here is the direct sales site: https://www.neziya.com/product/titan.html

• bolt

Self-Drilling Screw "Excel" is a revolutionary tapping screw with a drill-shaped tip that can perform three processes—drilling a pilot hole, tapping, and fastening—in a single operation. By shortening the work process, it improves work efficiency and significantly reduces fastening costs. The drill section has a sharp cutting edge that bites well, allowing for quick and easy driving with minimal thrust. ● For other functions and details, please download the catalog. The direct sales site is here: ↓ https://www.neziya.com/SHOP/254790/254812/list.html

• bolt

Self-Drilling Screw "Excel" is a tapping screw with a drill-shaped tip that can perform the three processes of drilling a pilot hole, tapping, and fastening in a single operation. By shortening the work process, it improves work efficiency and significantly reduces fastening costs. The drill part has a sharp cutting edge that provides good bite, allowing for quick and easy driving with minimal thrust. ● For other functions and details, please download the catalog. The direct sales site is here ↓ https://www.neziya.com/SHOP/254790/254812/list.html

• bolt

Placolor EXCEL is a high-strength engineering plastic with glass fibers, offering excellent weather resistance (such as to acid rain), corrosion resistance, and chemical resistance. It protects building materials from rain and snow, providing outstanding rust prevention, making it ideal for coastal industrial areas. Additionally, it can be color-matched with colored steel sheets, contributing to aesthetic appeal. The hexagonal head is the same size as that of self-drilling screws, allowing the use of standard tools (hex bits). ● For other functions and details, please download the catalog.

• bolt

Placolor EXCEL is a high-strength engineering plastic with glass fibers, offering excellent weather resistance (such as to acid rain), corrosion resistance, and chemical resistance. It protects building materials from rain and snow, providing outstanding rust prevention, making it ideal for coastal industrial areas. Additionally, it can be color-matched with colored steel sheets, contributing to aesthetic appeal. The hexagonal head is the same size as that of self-drilling screws, allowing for the use of standard tools (hex bits). A new color, matte black, has been added! ● For other functions and details, please download the catalog.

• bolt

The ALC version exclusive stainless steel fastener is screw-in type, so there is no hassle of drilling pilot holes like with expansion anchors. It quickly and reliably forms a female thread in the ALC body, ensuring a strong connection and achieving high holding power. Additionally, it can be easily installed in corners and other areas that were difficult to install traditionally. The material is stainless steel, which has the characteristic of being resistant to rust. ● For other functions and details, please download the catalog. The direct sales site is here: ↓ https://www.neziya.com/product/alinc.html

• bolt

The ALC version exclusive stainless steel fastener is a screw-in type, so there is no hassle of drilling a pilot hole like with expansion anchors. It quickly and reliably forms a female thread in the ALC body, ensuring a strong connection and achieving high holding power. Additionally, it can be easily installed in corners and other areas that were difficult to attach with conventional methods. The material is stainless steel, which has a low tendency to rust. ● For other functions and details, please download the catalog. The direct sales site is here: ↓ https://www.neziya.com/product/alinc.html

• bolt

This is a screw specifically designed for extruded cement boards, which eliminates the need for bottom hole processing, significantly improving work efficiency. It allows for one-person operation from one side, reduces total costs, and achieves labor-saving in on-site construction. It accommodates a wide range of applications, including the installation of various components such as partition wall fixing brackets, gutter brackets, pipe saddles, and duct brackets. ● For other functions and details, please download the catalog. The direct sales site can be accessed here: ↓ https://www.neziya.com/product/kirin.html

• bolt

The ALC version exclusive stainless steel fastener is screw-in type, so there is no hassle of drilling a pilot hole like with expansion anchors. It quickly and reliably forms a female thread in the ALC body, ensuring a strong connection and excellent holding power. Additionally, it can be easily installed in corners and other areas that were difficult to attach with conventional methods. The material is stainless steel, which has a low tendency to rust. ● For other functions and details, please download the catalog. The direct sales site is here: ↓ https://www.neziya.com/product/alinc.html

• bolt

Currently, resin components are widely used in home appliances and automotive parts. As for the screws used for mounting these resin components, the JIS standard tapping screws have the following issues: - High screwing torque. - Prone to spinning when the fastening is completed. - Cannot achieve high pull-out strength. - The area around the screw hole is prone to whitening phenomena. To address these problems, we have developed the "P-Lock," a tapping screw specifically designed for resin. ● For other features and details, please refer to the catalog.

• bolt

FAMCON is constructed from three geometric features. The first feature is that the thread angle is set at 55° to increase pull-out resistance without reducing thread strength, with a head-side flank angle of 15° and a counter flank angle of 40°, creating an unequal angle thread. The second feature is the arrangement of U-shaped notches along the entire length of the threaded section to enhance screw-in capability. The third feature is that the notched part of the thread creates a recessed area at the bottom of the thread valley to serve as a collection point for the shavings produced during machining. The synergistic effect of these three features enables perfect fastening and smooth operability. ● For other functions and details, please download the catalog.

• bolt

Sanrock is an ideal tapping screw that forms strong internal threads with a small screwing torque. The cross-section of the screw part is shaped like a rice ball, with its apex offset in a spiral manner. These two structural features enable a small screwing torque and smooth screwing performance. Additionally, since the internal threads are formed through plastic processing, it generates little cutting chips and allows for smooth fastening. ● For other functions and details, please download the catalog.

• bolt

Currently, resin components are widely used in home appliances and automotive parts. As screws for attaching these resin components, JIS standard tapping screws have the following issues: - High screwing torque. - Prone to spinning when tightening is completed. - Cannot achieve high pull-out strength. - The area around the screw hole is prone to whitening. To address these problems, we have developed the "P-Lock," a tapping screw specifically for resin. ● For other functions and details, please refer to the catalog.

• bolt

"TWO LOCK M's" is a screw that incorporates a TWO LOCK washer. Compared to conventional spring washers, it has a wavy shape, which provides greater spring resistance and is more resistant to loosening. Additionally, its unique shape minimizes the biting into the counterpart material during tightening, making it less prone to damage. The washer's low height also means that less tightening is required. Therefore, the screw can be shorter and lighter. We have developed and commercialized this steel TWO LOCK with its advantages intact, using rust-resistant stainless steel material. ● For other functions and details, please download the catalog.

• nut

Sanrock is an ideal tapping screw that forms strong internal threads with a small screwing torque. The cross-section of the screw part is shaped like a rice ball, with its apex offset in a spiral manner. These two structural features enable a small screwing torque and smooth screwing performance. Additionally, since the internal threads are formed through plastic processing, it generates little chip waste and allows for smooth fastening. ● For other functions and details, please download the catalog.

• bolt

The "M Coat" treatment refers to a Teflon-based lubricant film treatment developed by Maruemu Manufacturing Co., Ltd. as a measure to prevent seizure of stainless steel bolts and nuts. Tests conducted on stainless steel bolts and nuts treated with "M Coat" under conditions prone to seizure (3° wedge) showed that they could be tightened without seizing. Even after five repeated tightenings, no seizure phenomenon occurred, and no abnormal "galling" was observed on the threads of both the bolts and nuts.

• Surface treatment contract service

The "M Coat" treatment refers to a Teflon-based lubricant film treatment developed by Maruemu Seisakusho as a measure to prevent seizing of stainless steel bolts and nuts. Tests conducted on stainless steel bolts and nuts treated with "M Coat" under conditions prone to seizing (3° wedge) showed that even after tightening five times repeatedly, no seizing phenomenon occurred, and no abnormal "galling" was observed on the threaded surfaces of both the bolts and nuts.

• Surface treatment contract service

The "M Coat" treatment refers to a Teflon-based lubricant film treatment developed by Maruemu Manufacturing Co., Ltd. as a countermeasure against seizure of stainless steel bolts and nuts. Tests conducted on stainless steel bolts and nuts treated with "M Coat" showed that they could be tightened without seizing even under conditions that are prone to seizing (such as a 3° wedge). After tightening five times in succession, no seizing phenomenon occurred, and no abnormal "galling" was observed on the threaded surfaces of either the bolts or nuts.

• Surface treatment contract service

To cover the corrosion resistance of SUS410, passivation treatment is essential; however, our company has developed and processed a "Super Passivation Treatment (SP Treatment)" that significantly improves corrosion resistance (target: 500 hours of head rusting). We have now developed an "Excellent Passivation Treatment (EP Treatment)" that dramatically enhances corrosion resistance even further (target: 1000 hours of head rusting).

• Surface treatment contract service

The warning and guidance block for visually impaired individuals, "Navimarker," is a product developed using special polyamide resin with fiberglass, based on the concept of being "user-friendly" and "barrier-free." By simply securing the tile carpet, you can install a guidance block marker for individuals with disabilities. The resin-based dot and guidance markers developed by our company can be easily attached by just making holes in tile carpets or vinyl tiles. Unlike conventional methods that require drilling holes in concrete, this structure does not create any height differences with the surrounding carpet where the markers are not installed. Utilizing high-strength engineering plastics, it demonstrates exceptional durability even under harsh conditions. Since it is made of resin, it can also be produced in your preferred color tone to match the flooring material. The dimensions conform to JIS standards. ● For other functions and details, please refer to the catalog.

• others

At Maruem Manufacturing Co., we have utilized our accumulated core technologies and ideas in the production of screws, cold forged parts, and resin molded products to quickly create various molds and tools in response to our customers' needs. The processing techniques developed through our expertise in plastic processing and resin molding technologies are also applied here. We also sell molds and tools, so please feel free to take advantage of our offerings.

• Mold Design

Traditionally, for products that cannot be formed using special stepped parts, screws, or standard two-stage headers, we have relied on machining from bar stock or combining several parts. As a result, various issues have arisen, including high costs, quantitative supply shortages, and increased complexity in assembly. To address this problem, Maruemu Manufacturing Co., Ltd. utilizes multi-stage headers to cold forge complex shapes, contributing to cost reduction and stable supply.

• Other machine elements