ＳＤＣ田中 List of Products and Services

The "SDC Clean Bolt" is a high-quality bolt and nut used in environments such as semiconductor and pharmaceutical factories, where anti-seizing measures like lubricants and plating/coating cannot be applied. It is recognized as a top-quality component and has been adopted in international projects, including the large-scale low-temperature gravitational wave telescope KAGRA. 【Features of SDC Clean Bolt】 - Treated with SDC plasma surface hardening to prevent seizing and galling during tightening. - Due to the diffusion penetration treatment, there is no concern about peeling off like with lubricants or plating. *Please refer to the PDF data of the "SDC Clean Bolt" catalog available for download.

The "SDC Clean Bolt" is a high-quality bolt and nut used in environments such as semiconductor and pharmaceutical factories, where measures like lubricants and plating/coating to prevent seizure cannot be employed. It is designed to perform optimally even under harsh conditions and has been adopted for the international project of the large low-temperature gravitational wave telescope, KAGRA. 【Features of SDC Clean Bolt】 ■ Treated with SDC plasma surface hardening to prevent seizure and galling during tightening ■ Due to the diffusion penetration treatment, there is no concern about peeling off like lubricants or plating *Please refer to the PDF data of the "SDC Clean Bolt" catalog available for download.

Free gift of materials on the "SDC Clean Bolt" case study for preventing galling of stainless steel bolts in environments where plating, coating, or lubricants cannot be used! 【Ideal solution for the following customers!】 ◎ Bolts become seized and cannot be removed, or they damage the main body... ◎ Cannot use plating or lubricants because it is used in a clean room... ◎ The threads get damaged after being tightened and removed once... ◎ Galling occurs due to use in high-temperature environments... 【For more details, please download the catalog or feel free to contact us!】

Free gift of materials on the "SDC Clean Bolt," which prevents seizure of stainless steel bolts in environments where plating and coating cannot be used, with examples of "not seizing even in high-temperature environments"! 【Published Examples】 - Q&A from a representative of the technical department of an automobile manufacturer - Stainless steel bolts are used in high-temperature environments, but the environment is one that dislikes lubricants. - Additionally, when removed for maintenance after returning to room temperature, they sometimes become seized and cannot be removed. - They want to use "SDC Clean Bolt" to reduce equipment maintenance and maintenance costs, but can it be used in high-temperature environments? For more details, please contact us or download the catalog.

Free materials on the "reusable" case of the 'SDC Clean Bolt' that prevents galling of stainless steel bolts in environments where plating and coating cannot be used! 【Published Cases】 - Q&A from the person in charge of the Quality Control Department of vacuum equipment - Lubricants cannot be used due to the vacuum environment - Using untreated stainless steel bolts, but the threads are damaged (roughened) after tightening and loosening once - Can the "SDC Clean Bolt" be reused? For more details, please contact us or download the catalog.

Free gift of materials on the case study of "SDC Clean Bolt," which prevents galling of stainless steel bolts in environments where plating and coating cannot be used, without the use of lubricants! 【Published Case Studies】 - Q&A from the Safety Management Department of Food Manufacturing Equipment - Since it is used in food manufacturing equipment, lubricants and plating cannot be used - Due to cleaning, if tightened repeatedly in an untreated state, stainless steel bolts can gall - Does "SDC Clean Bolt" have any coating on the threaded surface? For more details, please contact us or download the catalog.

Free gift of materials on the case study of "SDC Clean Bolt," which prevents seizure of stainless steel bolts in environments where plating and coating cannot be used! 【Featured Case Studies】 - Q&A from the design department of a semiconductor manufacturing equipment company - During the assembly of equipment within semiconductor manufacturing equipment, cap screws were tightened into the main body’s taps, but when removing them, the bolts seized and became stuck, sometimes damaging the main body. - Since the equipment is expensive, we want to find a solution, but are there any good products available? For more details, please contact us or download the catalog.

In clean rooms that dislike impurities, semiconductor manufacturing equipment, food and beverage-related manufacturing equipment, and cosmetic and pharmaceutical manufacturing equipment and piping joints where cleanliness is required, various surface treatments (such as plating, coating, and lubricants) may not be used as anti-seizing measures during the tightening of bolts/nuts. Conventional stainless steel bolts/nuts can experience seizing issues when tightened, but by applying our unique technology, "SDC Plasma Surface Hardening Treatment," we have developed the "SDC Clean Bolt Series," which prevents seizing without the use of any lubricants. 【Specifications】 ○ Material: SUS316L ○ Surface Treatment: SDC Plasma Surface Hardening Treatment ○ Options (custom products) For more details, please contact us or download the catalog.

In clean rooms that dislike impurities, semiconductor manufacturing equipment, food and beverage-related manufacturing equipment, and cosmetic and pharmaceutical manufacturing equipment and piping joints where cleanliness is required, various surface treatments (such as plating, coating, and lubricants) may not be used as anti-seizing measures during the tightening of bolts/nuts. Conventional stainless steel bolts/nuts can experience seizing issues when tightened, but by applying our unique technology "SDC Plasma Surface Hardening Treatment," we have created the "SDC Clean Bolt Series," which prevents seizing without the use of any lubricants. 【Features】 ○ Does not use impurities such as lubricants or plating ○ Due to the diffusion penetration treatment, there is no concern about peeling off like with lubricants or plating For more details, please contact us or download the catalog.

In clean rooms that dislike impurities, semiconductor manufacturing equipment, food and beverage-related manufacturing equipment, and cosmetic and pharmaceutical manufacturing equipment and piping joints where cleanliness is required, various surface treatments (such as plating, coating, and lubricants) for preventing galling may not be applicable during the tightening of bolts and nuts. Conventional stainless steel bolts and nuts can experience galling when tightened, but by applying our unique technology, "SDC Plasma Surface Hardening Treatment," we have developed the "SDC Clean Bolt Series," which prevents galling without the use of any lubricants. 【Features】 ○ Does not use impurities such as lubricants or plating ○ Due to diffusion penetration treatment, there is no concern about peeling off like lubricants or plating For more details, please contact us or download the catalog.

SDC Tanaka Co., Ltd. listens to our customers' concerns and is sincerely committed to resolving them, developing high-value-added products. Currently, we are developing a wide range of products, from water supply bolts to aircraft bolts. Moving forward, we will continue to pursue technology as a group dedicated to research and development of screws. 【Business Activities】 ○ Manufacturing and sales of various special screw parts, including SDC bolts ○ Import and sales of protective parts ○ Contract processing and equipment sales for plasma surface hardening treatment ○ Sales of SDC screw performance testing machines For more details, please contact us or download the catalog.

The "SDC Clean Bolt" is a hex bolt that is less prone to seizing during tightening due to the SDC plasma surface hardening treatment. It is ideal for use in environments such as food factories where anti-seizing measures like lubricants, plating, or coatings cannot be used. 【Recommended Uses】 ◎ In semiconductor manufacturing equipment and clean rooms that avoid impurities as much as possible ◎ In food and beverage industries ◎ In manufacturing equipment and piping for pharmaceuticals and cosmetics 【Features】 ◆ Prevents seizing without the use of lubricants or plating ◆ No outgassing occurs 【For more details, please download the catalog or feel free to contact us】

In semiconductor manufacturing equipment and clean rooms, as well as in manufacturing equipment and piping related to food and beverages, pharmaceuticals, and cosmetics, it may not be possible to use lubricants or anti-seizing measures such as plating or coating on bolts and nuts due to a strong aversion to impurities. General stainless steel bolts and nuts pose a risk of outgassing, and while chemically polished ones are also used, they tend to easily seize during tightening. Therefore, our company has developed the "SDC Clean Bolt Series," which prevents seizing without the use of lubricants or plating by applying our proprietary technology, "SDC Plasma Surface Hardening Treatment," and also does not produce outgassing.

Our company offers the "SDC Plasma Vacuum Heat Treatment Technology," which modifies the surfaces of materials such as stainless steel, titanium, and nickel through plasma carburizing and nitriding. This technology enhances wear resistance and galling prevention without compromising corrosion resistance. It can prevent galling and seizing during tightening without the use of lubricants, making it suitable for parts used in semiconductor manufacturing equipment, vacuum devices, and equipment for cosmetics, pharmaceuticals, and food production. It has been adopted for titanium components in the International Space Station and has a proven track record in experimental devices for gravitational wave observation, maintaining its performance even in high-temperature environments (up to 300°C). 【Features】 - Maintains strong wear resistance and galling prevention without flaking due to surface modification. - Ideal for extending the lifespan of parts used in clean rooms and vacuum environments where lubricants cannot be used. - "SDC Clean Bolts" are compatible with environments ranging from -200°C to 300°C (no contamination occurs). - Treatment of titanium achieves even higher corrosion resistance. *For more details, please refer to the materials on heat treatment technology and "SDC Clean Bolts" available for download in the catalog. Various bolts are in stock.