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bolt Product List

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SDC Clean Bolt with Anti-Seizing Function for Clean Environments

SDC Clean Bolt with Anti-Seizing Function for Clean Environments

With the power of plasma, no lubricant, no impurities! Solving problems of seizure and galling.

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.

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Bolt "SDC ORIGINAL PRODUCTS"

Bolt "SDC ORIGINAL PRODUCTS"

Please check the "SDC Mark" of trust, safety, and proven results.

This is the SDC bolt series that meets the requirements for corrosion resistance, anti-corrosion properties, and insulation for joining bolts. 【Features】 ○ ISO 9001 certified For more details, please contact us or download the catalog.

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Insulated Bolt "SDC Current Insulated Bolt"

Insulated Bolt "SDC Current Insulated Bolt"

Insulation for high voltage (guaranteed 220V), suitable for machinery and piping flanges for various plants!

It is ideal for areas where the flow of electricity must be interrupted, such as plant machinery, piping flanges, electrostatic coating lines, and during dissimilar metal bonding, as well as for high-voltage insulation. 【Features】 ○ Insulation effect that withstands AC 2200V (guaranteed at 220V) ○ Excellent workability in dry conditions For more details, please contact us or download the catalog.

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SDC Tanaka - Information on Titanium Products

SDC Tanaka - Information on Titanium Products

Established a system for immediate delivery of pure titanium bolts and nuts.

We have a wide variety of screw products in pure titanium, including bolts, nuts, and cap screws, available in various types and sizes in stock at all times. We have established a quick delivery system to meet our customers' needs. We also accept orders for the manufacturing of other special processed products, as well as parts made from titanium alloys, Hastelloy, Inconel, and other nickel alloys. 【Product Lineup】 [Custom Made (Special Processed Products)] - Nickel Alloys (Hastelloy, Inconel, Monel, etc.) - SUS630, duplex stainless steel, and more For more details, please contact us or download the catalog.

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SDC Clean Bolt: Prevents seizing without using lubricants or plating.

SDC Clean Bolt: Prevents seizing without using lubricants or plating.

Hex bolts that can be baked and fixed without using lubricants or plating, thanks to the unique SDC plasma surface hardening treatment. Suitable for clean environments.

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.

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SDC current insulation bolt

SDC current insulation bolt

SDC current insulation bolt

SDC Insulation Bolt (SDC is a registered trademark of Tanaka Corporation) Perfect for insulated flange joints! Effective in preventing galvanic corrosion in dissimilar metal joints and stray currents along railway tracks! ■ Material SUS304, SUS316 ■ Shape Hexagonal bolt and nut ■ Features - Provides insulation effectiveness that withstands AC 2200V (guaranteed for 220V). - The bolt body is treated with a special lining, allowing for high-voltage insulation when combined with insulating washers. - Effectively prevents the major drawback of stainless steel bolts and nuts, which is seizure, through SDC color treatment (prevention of seizure and galling). - The bolt diameter is designed to smoothly fit into flange bolt holes in piping.

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"SDC Clean Bolt" that prevents seizing and sticking [No lubricant required]

"SDC Clean Bolt" that prevents seizing and sticking [No lubricant required]

Prevents seizure and galling without using lubricants or plating! Ideal hex bolts for a clean environment.

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】

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Bolt "SDC Corrosion-Resistant Bolt"

Bolt "SDC Corrosion-Resistant Bolt"

Insulation/corrosion-resistant bolts ideal for preventing galvanic corrosion during dissimilar metal bonding.

The "SDC anti-corrosion bolt" features a surface treatment with SDC color on stainless steel (SUS304/316(L)) that excels in corrosion resistance, preventing chlorine-based corrosion in seawater, and provides insulation effects through the resin coating of the bolt and the glass fiber reinforced resin washer. It prevents galvanic corrosion when joining dissimilar metal pipes such as stainless steel and ductile iron pipes. It maintains high corrosion resistance, making it ideal for use in seawater environments (such as reclaimed land) and in seawater itself. 【Features】 ○ Prevents galvanic corrosion during dissimilar metal joining ○ Prevents pitting corrosion occurring in seawater and chlorine-based solutions 【For more details, please download the catalog or feel free to contact us】

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Bolt "SDC Clean Bolt"

Bolt "SDC Clean Bolt"

Stainless steel bolts with excellent seizure resistance without lubricant.

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.

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SDC Clean Bolt Series

SDC Clean Bolt Series

We can also accommodate shapes, dimensions, and non-standard sizes other than the table.

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.

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【SDC Clean Bolt Case Study Material】Prevents seizure and galling.

【SDC Clean Bolt Case Study Material】Prevents seizure and galling.

【Case Study Material Giveaway!】Prevents seizure and galling of stainless steel bolts.

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.

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[SDC Clean Bolt Case Study Material] Can be reused.

[SDC Clean Bolt Case Study Material] Can be reused.

Case study materials gift! Please use them with confidence for repeated use.

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.

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Insulated washer included, electrical insulation bolt set "SDC Current Insulation Bolt"

Insulated washer included, electrical insulation bolt set "SDC Current Insulation Bolt"

Ideal for high voltage insulation! Set of insulated bolts, nuts, washers, etc.

The "SDC Current Insulation Bolt" is a set of insulated hex bolts, hex nuts, flat washers, insulated washers, and color caps designed to prevent electrical contact. It is ideal for areas where the flow of electricity must be interrupted, such as in plants, machinery, piping flanges, electrostatic painting lines, and during dissimilar metal bonding, as well as for high-voltage insulation points. 【Features】 ■ Insulation effect that withstands AC 2200V (guaranteed for 220V) ■ Excellent workability in dry conditions ■ Capable of preventing chlorine-based corrosion ■ Effectively prevents seizing ■ Can stabilize torque coefficient values *For more details, please contact us or download the catalog.

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SDC Clean Bolt Series [Adopted for International Project KAGRA]

SDC Clean Bolt Series [Adopted for International Project KAGRA]

This is a highly regarded bolt and nut that is optimal for environments that dislike impurities, ranging from extremely low temperatures to high temperatures!

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.

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[SDC Clean Bolt Case Study Material] No lubricants are used.

[SDC Clean Bolt Case Study Material] No lubricants are used.

Case study materials giveaway! No foreign matter contamination, safe for food-related equipment.

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.

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