Screws with Special Surface Treatment

Image Hex Head Screws (Galvanic Corrosion Prevention Treatment) Hex Nuts (Galvanic Corrosion Prevention Treatment) Washers (Galvanic Corrosion Prevention Treatment) Hex Socket Head Cap Screws - SUS316L / Surface hardening treatment Hex Socket Head Cap Screws - Fluorine Coating Hex Socket Head Cap Screws - MoS<sub>2</sub> Coating Hex Socket Head Cap Screws - Super Black Hex Socket Head Cap Screws - Low Temperature Black Chrome Hex Socket Head Cap Screws - Teflon Coating
Number SNH-GJ SHN-GJ SWA-F-GJ SNSL-PN SNSS-FC SNSS-MO SNSS-BK SNSS-RY SNSS-TF
Name Hex Head Screws (Galvanic Corrosion Prevention Treatment) Hex Nuts (Galvanic Corrosion Prevention Treatment) Washers (Galvanic Corrosion Prevention Treatment) Hex Socket Head Cap Screws - SUS316L / Surface hardening treatment Hex Socket Head Cap Screws - Fluorine Coating Hex Socket Head Cap Screws - MoS2 Coating Hex Socket Head Cap Screws - Super Black Hex Socket Head Cap Screws - Low Temperature Black Chrome Hex Socket Head Cap Screws - Teflon Coating
Material Steel Steel Steel SUS316L SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304)
Surface Treatment Galvanic Corrosion Prevention Treatment Galvanic Corrosion Prevention Treatment Galvanic Corrosion Prevention Treatment Surface hardening treatment Fluorine coating Molybdenum disulfide coating Stainless Steel Black Low temperature black chrome treatment Teflon coating
Size M5 ～ M16 M5 ～ M16 - M3 ～ M8 M3 ～ M10 M3 ～ M10 M2 ～ M10 M3 ～ M10 M3 ～ M10
Feature Galvanic Corrosion Prevention Galvanic Corrosion Prevention Galvanic Corrosion Prevention Seizing Prevention Seizing prevention Seizing prevention Reflection Resistance
Corrosion Resistance		 Chemical Resistance
Reflection Resistance
Seizing Prevention		 Chemical Resistance
Seizing Prevention
Image Hex Socket Head Cap Screws - Gold Coating Hex Socket Head Cap Screws - Electroless Nickel Plating Hex Head Screws - Teflon Coating for Head
Number SNSS-AUS SNS-EL SNHS-HTF
Name Hex Socket Head Cap Screws - Gold Coating Hex Socket Head Cap Screws - Electroless Nickel Plating Hex Head Screws - Teflon Coating for Head
Material SUSXM7 (Equivalent to SUS304) Steel SUSXM7 (Equivalent to SUS304)
Surface Treatment Gold Coating (Gold Purity: 99.99 wt%) Electroless nickel plating Teflon Coating (Head Only)
Size M3 ～ M10 M3 ～ M10 M3 ～ M8
Feature Seizing prevention High Strength Chemical Resistance

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Plastic Screw Property

This page describes "Plastic Screw Properties" such as PEEK, PTFE (Teflon), PPS, PC (polycarbonate) and PP (polypropylene).

Small screws are required 【Compact / lightweight】

Introducing a rich lineup of miniature screws and precision screws.

Screws with high strength are required even in environments where steel cannot be used 【Compact / lightweight】

Introducing screws using stainless steel/titanium screws with strength equivalent to steel for space and weight saving.

Screws must be protected from chemicals 【Energy-saving / reduced work-hours】

Introducing screws with excellent chemical resistance and screws with head coatings.

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Vol.1　Thinking about "Galling and Seizing"

Seized screws that won't come out are no small matter to deal with.Why does a screw "seize"? How can we prevent Galling and Seizing ?What exactly is Galling and Seizing? Nedzigon makes it all clear to you!

Increased degree of vacuum in equipment is required 【Productivity increase】

Introducing screws which support use with vacuum equipment.

Screws must be protected from chemicals 【Energy-saving / reduced work-hours】

Introducing screws with excellent chemical resistance and screws with head coatings.

Captive

Use the NBK Captive Screw Series to be comply with CE

This is the page for captive screws. Screws that secure a protective cover or inspection cover of equipment and devices must not fall out of the cover when it is removed. Use NBK's captive screw series to comply with CE marking.

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