Special Material Screws

Image Hex Socket Head Cap Screws (Monel 400 equiv.) Socket Head Cap Screw -Inconel equiv. Inconel Hex Nut Inconel Washer Hex Socket Head Cap Screws - Molybdenum Hexagon Socket Countersunk Head Screw - Molybdenum Hex Nuts - Molybdenum Washers - Molybdenum Socket Head Cap Screw -Hastelloy C-276　equiv.
Number SNSMN SNSI SHNI SWAI-F SNSM SNFCM SHNM SWAM-F SNSH-C276
Name Hex Socket Head Cap Screws (Monel 400 equiv.) Socket Head Cap Screw -Inconel equiv. Inconel Hex Nut Inconel Washer Hex Socket Head Cap Screws - Molybdenum Hexagon Socket Countersunk Head Screw - Molybdenum Hex Nuts - Molybdenum Washers - Molybdenum Socket Head Cap Screw -Hastelloy C-276　equiv.
Material Monel Inconel Inconel Inconel Pure molybdenum Pure molybdenum Pure molybdenum Pure molybdenum Hastelloy
Surface Treatment - - - - - - - - -
Size M3 ～ M6 M3 ～ M8 M3 ～ M8 - M3 ～ M8 M2 ～ M4 M3 ～ M8 - M3 ～ M8
Feature Chemical-proof
Heat-resistance		 Chemical Resistance
Heat Resistance		 Chemical Resistance
Heat Resistance		 Chemical Resistance
Heat Resistance		 Heat Resistance Heat-resistance Heat Resistance Heat Resistance Chemical Resistance
Image Socket Head Cap Screw -Hastelloy C-22　equiv. Hex Socket Head Cap Screws - Nickel Hex Socket Head Cap Screws - Super Invar Hex Socket Head Cap Screws - Phosphor Bronze Hex Socket Head Cap Screws - Aluminum Cover Caps Ceramic Bolt Ceramic Bolt Hex Nuts - Ceramic
Number SNSH-C22 SNSN SNSIV SNSP SNSA SCAP-AL SCX-C SCX-H SCX-N
Name Socket Head Cap Screw -Hastelloy C-22　equiv. Hex Socket Head Cap Screws - Nickel Hex Socket Head Cap Screws - Super Invar Hex Socket Head Cap Screws - Phosphor Bronze Hex Socket Head Cap Screws - Aluminum Cover Caps Ceramic Bolt Ceramic Bolt Hex Nuts - Ceramic
Material Hastelloy Pure Nickel (Ni 99.0%) Super Invar C5191 (Phosphor Bronze) A5056 A5056 Al2O3 (Alumina 99.5%) Al2O3 (Alumina 99.5%) Al2O3 (Alumina 99.5%)
Surface Treatment - - - - - - - - -
Size M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M3 ～ M8 M5 ～ M16 M3 ～ M10 M3 ～ M10 M3 ～ M10
Feature Chemical Resistance Chemical Resistance
Heat Resistance		 Low Expansion Non-Magnetic Lightweight Low Outgas
Corrosion Resistance		 Chemical Resistance
Heat Resistance
Electrical Insulation		 Chemical Resistance
Heat Resistance
Electrical Insulation		 Chemical Resistance
Heat Resistance
Electrical Insulation
Image Cover Caps
Number SCAP-CE
Name Cover Caps
Material Al2O3 (Alumina 99.5%)
Surface Treatment -
Size M5 ～ M16
Feature Heat Resistance
Chemical Resistance

Electrical Insulation

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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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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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