富田螺子 List of Products and Services

We would like to introduce the "bent products" handled by Tomita Nariko. We offer a rich lineup of over 36 types of U-bolts, over 400 types of C-bolts, 34 types of V-bolts, and various other bent products. Of course, we can also accommodate special sizes (custom orders) in small lots. Please feel free to contact us when you need assistance. 【Product List (Excerpt)】 ■ U-bolts ■ C-bolts ■ L-angle bolts ■ Hook bolts ■ Channel hook bolts ■ Pipe hook bolts ■ Eye bolts *For more details, please refer to the PDF document or feel free to contact us.

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●Material - Made of iron - Made of stainless steel Although it is made to order, our company has experience in manufacturing special materials such as SUS316L. ●Plating Trivalent chromate ★It depends on the size. Please consult us first. ●Size Commercially available sizes range from M4 to M12, and sizes M16 (14) and above are not common. ●Description In the transportation equipment sector, there is a high demand for stepped flange bolts, which are manufactured using a multi-stage header. Type 1 has a flange similar to a flat washer. Type 2 has a tapered upper surface like a flange nut and is thicker than Type 1. The serration on the seating surface may vary by type and manufacturer, with some having it and some not. There are also types with a plus-minus recess on the head. ●Features of Flange Bolts 1. Prevents seating surface sinking (cupping) 2. No washer is needed, saving the effort of assembling washers. 3. Stabilizes the seating surface.

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What is a slim head wood screw? The slim head wood screw, which has a lower head than a regular wood screw, has arrived! Because the slim head wood screw has a lower head than standard wood screws, it reduces protrusion after installation and can be used in places where flat head screws cannot be used due to thin sheet fastening. It is mainly used as a mounting screw for sash frames. Transitioning from flat head screws to slim head wood screws achieves space-saving, reduces labor, and improves operational efficiency.

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Traditionally, air has accumulated at the bottom of the holes and screw holes when using caps and washers. By using the "Drain Hole Series," it becomes possible to discharge the air and gas that has accumulated at the bottom of the screw holes of machines and devices through the drain hole. These can be used in vacuum devices, vacuum containers, clean rooms, FPD manufacturing equipment, semiconductor manufacturing equipment, electron microscopes, and more. 【Features】 ■ Suitable for discharging high-pressure, high-temperature air and gas ■ Allows for the discharge of air and gas accumulated at the bottom of screw holes in machines and devices ■ Washers are processed with drain hole grooves ■ Material: Stainless steel (303, 304, XM-7), SUS316L, Titanium ■ Unified standards are also available *For more details, please refer to the PDF document or feel free to contact us.

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This is an introduction to our flanged hex bolts of types 1 and 2. The strength classification of 10.9 indicates a tensile strength of 1000 N/mm² (approximately 100 kg/mm²), and it can withstand loads up to 90% of that, or 900 N/mm². Type 1 features a flange similar to a flat washer, while Type 2 has a tapered upper surface like a flange nut and is thicker than Type 1. 【Features】 ■ Hex bolts with a flange integrally molded into the head seating surface ■ Strength classification 10.9 ■ Prevents seating surface collapse ■ No need for washers, eliminating the hassle of assembling washers ■ Stabilizes the seating surface *For more details, please refer to the PDF document or feel free to contact us.

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The "Thin Plate Specialty" screw is designed to securely tighten thin plates by making the incomplete thread section even shorter than conventional thin plate screws. In traditional thin plate fastening, the incomplete thread section stops progressing once it reaches the counterpart material. Depending on the thin plate, there is a risk of gaps opening, making it difficult to achieve a tight fit, and sometimes additional washers were needed. Our product solves these issues. 【Features】 ■ Capable of securely tightening thin plates ■ Reduces gaps with thin plates ■ Supports bulk shipping ■ Custom orders available *For more details, please refer to the PDF document or feel free to contact us.

• Other consumables
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We offer "screw painting" services. It is possible to finish in the color desired by the customer or to match the sample color. You can specify the color from the Japan Painting Industry Association's color samples, color sample plates, and color samples. Additionally, "painted screws" not only enhance aesthetics but also allow assembly work to be performed by those without knowledge of screws through color differentiation. Please utilize this for reducing labor costs and preventing mistakes. 【Features】 ■ Head painting and screw painting ■ Possible to finish in the desired color or to match the sample color ■ Enhances aesthetics ■ Allows assembly work by those without knowledge ■ Helps reduce labor costs and prevent mistakes *For more details, please refer to the PDF materials or feel free to contact us.

• Other consumables
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The "Earth Small Screw" becomes a conductive part simply by tightening, eliminating the need for "painting removal work" or "masking work." Using this product allows for conductivity, leading to significant cost reduction and labor savings. Additionally, it can be reused 1 to 3 times. 【Features】 ■ Small screw that also serves as a conductive part ■ No need for painting removal work or masking work ■ Significant cost reduction and labor savings possible ■ Usable 1 to 3 times *For more details, please refer to the PDF document or feel free to contact us.

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"Zero Whisker S Plating" is a zinc plating process that does not generate zinc whiskers. When the internal stress in the plating film exceeds 40 MPa, whiskers occur; however, this product achieves an internal stress of about 10 MPa, preventing the formation of zinc whiskers. Due to its good gloss, it is also suitable for surface materials that require aesthetic appeal. Aside from being plated under specific conditions, it is identical to standard zinc plating. Therefore, its general performance and cost are almost equivalent to those of standard zinc plating. [Features] - Achieves internal stress of about 10 MPa - Suitable for surface materials that require aesthetic appeal - General performance and cost are almost equivalent to standard zinc plating *For more details, please refer to the PDF document or feel free to contact us.

• Surface treatment contract service
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The "Slim Head Screw" is a low-profile head shape screw. Since the head is flat, there are no protrusions that are a concern during installation. The low head height makes it lighter compared to pan head screws and others. It is suitable for thin boards where flat head screws cannot be used, as well as for exterior painting. Materials available include stainless steel and iron. Various surface treatments are also available. 【Features】 ■ No protrusions that are a concern during installation ■ Lighter than pan head screws due to low head height ■ Ideal for areas where flat head screws cannot be used ■ Usable for exterior painting ■ Available in stainless steel and iron *For more details, please refer to the PDF document or feel free to contact us.

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The "PT screw" is a small screw with a head height that is about 1/3 of that of a standard pan head screw. Conventional low head screw products have the drawback of being "easy to strip," but this product overcomes that issue. Additionally, since it is composed of a circle, there is no withdrawal slope, and it does not cam out. It can be opened and closed with a standard cross-head screwdriver without the need for a special tool. 【Features】 ■ No countersinking required ■ Does not cam out ■ No special tools required ■ Reduces labor ■ Can be used as a substitute for pan head screws *For more details, please refer to the PDF document or feel free to contact us.

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"SUS304CUN" is an A2 austenitic stainless steel that has corrosion cracking resistance similar to that of SUS316. Due to its excellent high heat resistance, carbon precipitation does not occur even at temperatures of 500 to 700°C. Additionally, strength is increased solely through cold working, eliminating concerns about aging cracking or delayed fracture caused by heat treatment processes in the market. It is useful in various applications such as "tension-related," "marine-related," and "road-related" fields. 【Features】 ■ Excellent high strength, high corrosion resistance, and high heat resistance ■ No carbon precipitation occurs even at 500 to 700°C ■ No concerns about aging cracking or delayed fracture due to being in an untempered state *For more details, please refer to the PDF document or feel free to contact us.

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• stainless

We propose "hexagon socket bolts" made by Eagle Metalware for those considering cost reduction on hexagon socket bolts. Eagle Metalware Co., Ltd. is a global manufacturer that has been leading the industry's development with advanced technology since its establishment. Compared to conventional domestic products, a cost reduction of approximately 10-30% is possible. 【Benefits and Effects】 ■ A cost reduction of approximately 10-30% is possible compared to conventional domestic products. *For more details, please refer to the PDF document or feel free to contact us.

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A locking processed screw (pre-coated screw) refers to a screw that has adhesive or resin fused to its threads. It is mainly used as a locking mechanism, but it is also utilized for sealing (waterproofing) and positioning. There are various advantages, such as increased efficiency due to reduced man-hours, total cost reduction, and the elimination of forgetting to apply adhesive or uneven application. 【Advantages of locking processing (pre-coating)】 ■ Increased efficiency due to reduced man-hours ■ Total cost reduction ■ No forgetting to apply adhesive or uneven application ■ Reduced inventory management tasks *For more details, please refer to the PDF document or feel free to contact us.

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• Processing Contract