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Loosening Prevention

These screws are designed to prevent loosening.
Bolts with nylon patches use friction to suppress reverse rotation of the screw.
Eccentric Lock Washers, used in combination with hex nuts, greatly prevent loosening.
Lock nuts have friction rings to prevent loosening.
Loosening-Prevention_1en

Image High Strength Stainless Steel Socket Head Cap Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch – 316L Stainless Steel Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch
Part Name High Strength Stainless Steel Socket Head Cap Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch Low Profile Socket Head Cap Screws with Nylon Patch – 316L Stainless Steel Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch
Part Number SNSLG-ALK SNCX-ALK SNCXS-ALK SLH-ALK SLH-TZB-ALK SLHS-ALK SLHL-ALK SLT-TZB-ALK SLTS-ALK
Feature High Strength (Strength Class 10.8 Equivalent)
Non-magnetic
Nylon Patch		 High Tightening Torque
Nylon Patch		 High Tightening Torque
Nylon Patch		 Low Profile
Space-Saving
Nylon Patch		 Low Profile
Space-Saving
Nylon Patch		 Space-saving
Low Profile
Nylon Patch		 Low Profile
Space-Saving
Nylon Patch		 Hexalobular Socket
Low Profile
Space-Saving
Nylon Patch		 Hexalobular Socket
Low Profile
Space-Saving
Nylon Patch
Material SUS316L Steel SUSXM7 (Equivalent to SUS304) Steel Steel SUSXM7 (Equivalent to SUS304) SUS316L Steel SUSXM7 (Equivalent to SUS304)
Surface Treatment - Ferrosoferric Oxide Film (Black) - Ferrosoferric Oxide Film (Black) Trivalent chromate treatment - - Trivalent chromate treatment -
Thread Size M3 ～ M6 M3 ～ M12 M3 ～ M10 M2 ～ M10 M2 ～ M10 M2 ～ M10 M3 ～ M6 M3 ～ M6 M2 ～ M6
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SNSLG-M3-ALK SNSLG-M4-ALK SNSLG-M5-ALK SNSLG-M6-ALK SNCX-M10-ALK SNCX-M12-ALK SNCX-M3-ALK SNCX-M4-ALK SNCX-M5-ALK SNCX-M6-ALK SNCX-M8-ALK SNCXS-M10-ALK SNCXS-M3-ALK SNCXS-M4-ALK SNCXS-M5-ALK SNCXS-M6-ALK SNCXS-M8-ALK SLH-M10-ALK SLH-M2.5-ALK SLH-M2-ALK SLH-M3-ALK SLH-M4-ALK SLH-M5-ALK SLH-M6-ALK SLH-M8-ALK SLH-M10-TZB-ALK SLH-M2.5-TZB-ALK SLH-M2-TZB-ALK SLH-M3-TZB-ALK SLH-M4-TZB-ALK SLH-M5-TZB-ALK SLH-M6-TZB-ALK SLH-M8-TZB-ALK SLHS-M10-ALK SLHS-M2.5-ALK SLHS-M2-ALK SLHS-M3-ALK SLHS-M4-ALK SLHS-M5-ALK SLHS-M6-ALK SLHS-M8-ALK SLHL-M3-ALK SLHL-M4-ALK SLHL-M5-ALK SLHL-M6-ALK SLT-M3-TZB-ALK SLT-M4-TZB-ALK SLT-M5-TZB-ALK SLT-M6-TZB-ALK SLTS-M2.5-ALK SLTS-M2-ALK SLTS-M3-ALK SLTS-M4-ALK SLTS-M5-ALK SLTS-M6-ALK
Image Socket Head Cap Screws with Ultra Low Profile and Nylon Patch Socket Head Cap Screws with Ultra Low Profile and Nylon Patch Ultra Low Profile Socket Head Cap Screws with Nylon Patch Ultra Low Profile Socket Head Cap Screws with Nylon Patch - 316L Stainless Steel Ultra Low Profile Socket Head Cap Screws with Nylon Patch – for Sheet Metal Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch
Part Name Socket Head Cap Screws with Ultra Low Profile and Nylon Patch Socket Head Cap Screws with Ultra Low Profile and Nylon Patch Ultra Low Profile Socket Head Cap Screws with Nylon Patch Ultra Low Profile Socket Head Cap Screws with Nylon Patch - 316L Stainless Steel Ultra Low Profile Socket Head Cap Screws with Nylon Patch – for Sheet Metal Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch
Part Number SSH-EL-ALK SSHS-ALK SSH-ALK SSHL-ALK SSHS-UC-ALK SEC-TZB-ALK SEC-TBZ-ALK SECS-ALK SEQ-TZB-ALK
Feature Space-Saving
Ultra Low Profile
Nylon Patch		 Space-saving
Ultra Low Profile
Nylon Patch		 Special Low Profile
Space-Saving
Nylon Patch		 Special Low Profile
Space-Saving
Nylon Patch		 Special Low Profile
Space-Saving
For Sheet Metal (Plate Thickness 0.1mm or More)
Nylon Patch		 Extra Low Profile
Space-Saving
Nylon Patch		 Extra Low Profile
Space-Saving
Nylon Patch		 Extra Low Profile
Space-Saving
Nylon Patch		 Extra Low Profile
Space-Saving
Nylon Patch
Material Steel SUSXM7 (Equivalent to SUS304) Steel SUS316L SUSXM7 (Equivalent to SUS304) Steel Steel SUSXM7 (Equivalent to SUS304) Steel
Surface Treatment Electroless nickel plating - Ferrosoferric Oxide Film (Black) - - Trivalent chromate treatment Black Trivalent Chromate Treatment - Trivalent chromate treatment
Thread Size M2 ～ M8 M2 ～ M8 M2 ～ M10 M3 ～ M5 M3 ～ M6 M2 ～ M6 M2 ～ M6 M3 ～ M6 M3 ～ M4
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SSH-M2.5-EL-ALK SSH-M2-EL-ALK SSH-M3-EL-ALK SSH-M4-EL-ALK SSH-M5-EL-ALK SSH-M6-EL-ALK SSH-M8-EL-ALK SSHS-M2.5-ALK SSHS-M2-ALK SSHS-M3-ALK SSHS-M4-ALK SSHS-M5-ALK SSHS-M6-ALK SSHS-M8-ALK SSH-M10-ALK SSH-M2.5-ALK SSH-M2-ALK SSH-M3-ALK SSH-M4-ALK SSH-M5-ALK SSH-M6-ALK SSH-M8-ALK SSHL-M3-ALK SSHL-M4-ALK SSHL-M5-ALK SSHS-M3-UC-ALK SSHS-M4-UC-ALK SSHS-M5-UC-ALK SSHS-M6-UC-ALK SEC-M2.5-TZB-ALK SEC-M2.6-TZB-ALK SEC-M2-TZB-ALK SEC-M3-TZB-ALK SEC-M4-TZB-ALK SEC-M5-TZB-ALK SEC-M6-TZB-ALK SEC-M2.5-TBZ-ALK SEC-M2.6-TBZ-ALK SEC-M2-TBZ-ALK SEC-M3-TBZ-ALK SEC-M4-TBZ-ALK SEC-M5-TBZ-ALK SEC-M6-TBZ-ALK SECS-M3-ALK SECS-M4-ALK SECS-M5-ALK SECS-M6-ALK SEQ-M3-TZB-ALK SEQ-M4-TZB-ALK
Image Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Super Ultra Low Profile and Nylon Patch Super Ultra Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Inch Super Ultra Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Super Ultra Low Profile and Nylon Patch Inch Super Ultra Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Socket Head Cap Screws with Small Head and Nylon Patch Socket Head Cap Screws with Small Head and Nylon Patch
Part Name Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Super Ultra Low Profile Cross Recessed Machine Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Super Ultra Low Profile and Nylon Patch Super Ultra Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Inch Super Ultra Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Hexalobular Socket Head Cap Screws with Super Ultra Low Profile and Nylon Patch Inch Super Ultra Low Profile Hexalobular Socket Head Cap Screws with Nylon Patch Socket Head Cap Screws with Small Head and Nylon Patch Socket Head Cap Screws with Small Head and Nylon Patch
Part Number SEQ-TBZ-ALK SEQS-ALK SET-NI-ALK SET-BNI-ALK SET-TZB-ALK(INCH) SETS-ALK SETS-ALK(INCH) SNS-SD-EL-ALK SNSS-SD-ALK
Feature Extra Low Profile
Space-Saving
Nylon Patch		 Extra Low Profile
Space-Saving
Nylon Patch		 Hexalobular Socket
Extra Low Profile
Space-Saving
Nylon Patch		 Hexalobular Socket
Extra Low Profile
Space-Saving
Nylon Patch		 Hexalobular Socket
Extra Low Profile
Space-Saving
Inch Screw
Nylon Patch		 Hexalobular Socket
Extra Low Profile
Space-Saving
Nylon Patch		 Hexalobular Socket
Extra Low Profile
Space-Saving
Inch Screw
Nylon Patch		 Small Head
Space-Saving
Nylon Patch		 Small Head
Space-Saving
Nylon Patch
Material Steel SUSXM7 (Equivalent to SUS304) Steel Steel Steel SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Steel SUSXM7 (Equivalent to SUS304)
Surface Treatment Black Trivalent Chromate Treatment - Nickel plating Black Nickel Plating Trivalent chromate treatment - - Electroless nickel plating -
Thread Size M3 ～ M4 M3 ～ M4 M3 ～ M5 M3 ～ M5 No.6-32UNC ～ No.10-32UNF M2 ～ M6 No.4-40UNC ～ No.10-32UNF M3 ～ M8 M2 ～ M8
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SEQ-M3-TBZ-ALK SEQ-M4-TBZ-ALK SEQS-M3-ALK SEQS-M4-ALK SET-M3-NI-ALK SET-M4-NI-ALK SET-M5-NI-ALK SET-M3-BNI-ALK SET-M4-BNI-ALK SET-M5-BNI-ALK SET-#10-24-TZB-ALK SET-#10-32-TZB-ALK SET-#6-32-TZB-ALK SET-#8-32-TZB-ALK SETS-M2.6-ALK SETS-M2-ALK SETS-M3-ALK SETS-M4-ALK SETS-M5-ALK SETS-M6-ALK SETS-#10-24-ALK SETS-#10-32-ALK SETS-#4-40-ALK SETS-#6-32-ALK SETS-#8-32-ALK SNS-M3-SD-EL-ALK SNS-M4-SD-EL-ALK SNS-M5-SD-EL-ALK SNS-M6-SD-EL-ALK SNS-M8-SD-EL-ALK SNSS-M2.5-SD-ALK SNSS-M2-SD-ALK SNSS-M3-SD-ALK SNSS-M4-SD-ALK SNSS-M5-SD-ALK SNSS-M6-SD-ALK SNSS-M8-SD-ALK
Image Socket Head Cap Screws with Ultra Low Profile & Small Head and Nylon Patch Socket Head Cap Screws with Ultra Low Profile & Small Head and Nylon Patch Flanged Socket Head Cap Screws with Nylon Patch Ultra Low Profile Hex Head Screws with Nylon Patch Hexalobular Socket Extra Low Profile Miniature Screw / Nylon Patch Pan Head Machine Screws for Precision Instruments (Miniature Screws with Nylon Patch) Pan Head Machine Screws for Precision Instruments (Miniature Screws with Nylon Patch) Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-1 Brass Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-1
Part Name Socket Head Cap Screws with Ultra Low Profile & Small Head and Nylon Patch Socket Head Cap Screws with Ultra Low Profile & Small Head and Nylon Patch Flanged Socket Head Cap Screws with Nylon Patch Ultra Low Profile Hex Head Screws with Nylon Patch Hexalobular Socket Extra Low Profile Miniature Screw / Nylon Patch Pan Head Machine Screws for Precision Instruments (Miniature Screws with Nylon Patch) Pan Head Machine Screws for Precision Instruments (Miniature Screws with Nylon Patch) Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-1 Brass Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-1
Part Number SSH-SD-EL-ALK SSHS-SD-ALK SFSS-ALK SNHS-LH-ALK SNZCXS-ALK SNZ-TBZ-ALK SNZS-ALK SNZ-TZB-ALK SNZB-ALK
Feature Special Low Profile
Small Head
Space-Saving
Nylon Patch		 Special Low Profile
Small Head
Space-Saving
Nylon Patch		 Flanged
Nylon Patch		 Special Low Profile
Space-Saving
Nylon Patch		 Flat Head Machine Screw
for Precision Instruments		 Pan Head Machine Screw
for Precision Instruments
Nylon Patch		 Pan Head Machine Screw
for Precision Instruments
Nylon Patch		 Pan Head Machine Screws
for Precision Instruments
Nylon Patch		 Non-magnetic
Pan Head Machine Screws
for Precision Instruments
Nylon Patch
Material Steel SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Equivalent to SUS304 SUSXM7 (Equivalent to SUS304) Steel SUSXM7 (Equivalent to SUS304) Steel Brass
Surface Treatment Electroless nickel plating - - - - Black Trivalent Chromate Treatment - Trivalent chromate treatment -
Thread Size M3 ～ M8 M2 ～ M8 M4 ～ M8 M4 ～ M8 M1.4 ～ M2.5 M1.4 ～ M2.6 M1 ～ M2.6 M1 ～ M2.6 M2 ～ M2.6
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SSH-M3-SD-EL-ALK SSH-M4-SD-EL-ALK SSH-M5-SD-EL-ALK SSH-M6-SD-EL-ALK SSH-M8-SD-EL-ALK SSHS-M2.5-SD-ALK SSHS-M2-SD-ALK SSHS-M3-SD-ALK SSHS-M4-SD-ALK SSHS-M5-SD-ALK SSHS-M6-SD-ALK SSHS-M8-SD-ALK SFSS-M4-ALK SFSS-M5-ALK SFSS-M6-ALK SFSS-M8-ALK SNHS-M4-LH-ALK SNHS-M5-LH-ALK SNHS-M6-LH-ALK SNHS-M8-LH-ALK SNZCXS-M1.4-ALK SNZCXS-M1.6-ALK SNZCXS-M2.5-ALK SNZCXS-M2-ALK SNZ-M1.4-TBZ-ALK SNZ-M1.7-TBZ-ALK SNZ-M2.6-TBZ-ALK SNZ-M2-TBZ-ALK SNZS-M1.4-ALK SNZS-M1.6-ALK SNZS-M1.7-ALK SNZS-M1-ALK SNZS-M2.5-ALK SNZS-M2.6-ALK SNZS-M2-ALK SNZ-M1.2-TZB-ALK SNZ-M1.4-TZB-ALK SNZ-M1.6-TZB-ALK SNZ-M1.7-TZB-ALK SNZ-M1-TZB-ALK SNZ-M2.5-TZB-ALK SNZ-M2.6-TZB-ALK SNZ-M2-TZB-ALK SNZB-M2.6-ALK SNZB-M2-ALK
Image Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-2 Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-2 Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-2 Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-1 Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-3
Part Name Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-2 Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-2 Cross Recessed Micro Pan Head Screws with Nylon Patch - Type 0-2 Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Pan Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-1 Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-3 Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-3
Part Number SNZ2-TZB-ALK SNZ2-TBZ-ALK SNZ2S-ALK SNZ3-TZB-ALK SNZ3-TBZ-ALK SNZ3S-ALK SNZF-TZB-ALK SNZF3-TZB-ALK SNZF3-TBZ-ALK
Feature Pan Head Machine Screws
for Precision Instruments
Nylon Patch		 Pan Head Machine Screws
for Precision Instruments
Nylon Patch		 Pan Head Machine Screws
for Precision Instruments
Nylon Patch		 Pan Head Machine Screw
for Precision Instruments
Nylon Patch		 Pan Head Machine Screw
for Precision Instruments
Nylon Patch		 Pan Head Machine Screw
for Precision Instruments
Nylon Patch		 Flat Head Machine Screws
for Precision Instruments
Nylon Patch		 Flat Head Machine Screws
for Precision Instruments
Nylon Patch		 Flat Head Machine Screws
for Precision Instruments
Nylon Patch
Material Steel Steel Stainless Steel Steel Steel Stainless Steel Steel Steel Steel
Surface Treatment Trivalent chromate treatment Black Trivalent Chromate Treatment - Trivalent chromate treatment Black Trivalent Chromate Treatment - Trivalent chromate treatment Trivalent chromate treatment Black Trivalent Chromate Treatment
Thread Size M1.4 ～ M2.6 M1.4 ～ M2.6 M1.4 ～ M2 M1.4 ～ M2.6 M1.4 ～ M2.6 M1.4 ～ M2.6 M1.4 ～ M2.6 M1.4 ～ M2.6 M1.4 ～ M2.6
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SNZ2-M1.4-TZB-ALK SNZ2-M1.6-TZB-ALK SNZ2-M1.7-TZB-ALK SNZ2-M2.5-TZB-ALK SNZ2-M2.6-TZB-ALK SNZ2-M2-TZB-ALK SNZ2-M1.4-TBZ-ALK SNZ2-M1.6-TBZ-ALK SNZ2-M1.7-TBZ-ALK SNZ2-M2.5-TBZ-ALK SNZ2-M2.6-TBZ-ALK SNZ2-M2-TBZ-ALK SNZ2S-M1.4-ALK SNZ2S-M1.6-ALK SNZ2S-M1.7-ALK SNZ2S-M2-ALK SNZ3-M1.4-TZB-ALK SNZ3-M1.6-TZB-ALK SNZ3-M1.7-TZB-ALK SNZ3-M2.5-TZB-ALK SNZ3-M2.6-TZB-ALK SNZ3-M2-TZB-ALK SNZ3-M1.4-TBZ-ALK SNZ3-M1.6-TBZ-ALK SNZ3-M1.7-TBZ-ALK SNZ3-M2.5-TBZ-ALK SNZ3-M2.6-TBZ-ALK SNZ3-M2-TBZ-ALK SNZ3S-M1.4-ALK SNZ3S-M1.6-ALK SNZ3S-M1.7-ALK SNZ3S-M2.6-ALK SNZ3S-M2-ALK SNZF-M1.4-TZB-ALK SNZF-M1.6-TZB-ALK SNZF-M1.7-TZB-ALK SNZF-M2.5-TZB-ALK SNZF-M2.6-TZB-ALK SNZF-M2-TZB-ALK SNZF3-M1.4-TZB-ALK SNZF3-M1.7-TZB-ALK SNZF3-M2.6-TZB-ALK SNZF3-M2-TZB-ALK SNZF3-M1.4-TBZ-ALK SNZF3-M1.7-TBZ-ALK SNZF3-M2.6-TBZ-ALK SNZF3-M2-TBZ-ALK
Image Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-3 Hexalobular Socket Pan Head Machine Screws with Nylon Patch Hexalobular Socket Pan Head Machine Screws with Nylon Patch Cross Recessed Flat Head Machine Screws with Nylon Patch - for Sheet Metal Cross Recessed Flat Head Machine Screws with Nylon Patch - for Sheet Metal Hexalobular Socket Flat Head Cap Screws with Nylon Patch Hexalobular Socket Flat Head Cap Screws with Nylon Patch Hexalobular Socket Truss Head Screws with Nylon Patch Hexalobular Socket Truss Head Screws with Nylon Patch
Part Name Cross Recessed Micro Flat Head Machine Screws with Nylon Patch - Type 0-3 Hexalobular Socket Pan Head Machine Screws with Nylon Patch Hexalobular Socket Pan Head Machine Screws with Nylon Patch Cross Recessed Flat Head Machine Screws with Nylon Patch - for Sheet Metal Cross Recessed Flat Head Machine Screws with Nylon Patch - for Sheet Metal Hexalobular Socket Flat Head Cap Screws with Nylon Patch Hexalobular Socket Flat Head Cap Screws with Nylon Patch Hexalobular Socket Truss Head Screws with Nylon Patch Hexalobular Socket Truss Head Screws with Nylon Patch
Part Number SNZF3S-ALK SNPX-TZB-ALK SNPX-TBZ-ALK SNF-TBZ-SUC-ALK SNFS-SUC-ALK SNFX-TZB-ALK SNFX-TBZ-ALK SNMX-TZB-ALK SNMX-TBZ-ALK
Feature Flat Head Machine Screws
for Precision Instruments
Nylon Patch		 High Tightening Torque
Pan Head Machine Screws
Nylon Patch		 High Tightening Torque
Pan Head Machine Screws
Nylon Patch		 Low Profile
Space-Saving
For Sheet Metal
Nylon Patch		 Low Profile
Space-Saving
For Sheet Metal
Nylon Patch		 High Tightening Torque
Flat Head Screws
Nylon Patch		 High Tightening Torque
Flat Head Screws
Nylon Patch		 High Tightening Torque
Truss Machine Screws
Nylon Patch		 High Tightening Torque
Truss Machine Screws
Nylon Patch
Material Stainless Steel Steel Steel Steel SUSXM7 (Equivalent to SUS304) Steel Steel Steel Steel
Surface Treatment - Trivalent chromate treatment Black Trivalent Chromate Treatment Black Trivalent Chromate Treatment - Trivalent chromate treatment Black Trivalent Chromate Treatment Trivalent chromate treatment Black Trivalent Chromate Treatment
Thread Size M1.4 ～ M2 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6 M3 ～ M6
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SNZF3S-M1.4-ALK SNZF3S-M1.6-ALK SNZF3S-M1.7-ALK SNZF3S-M2-ALK SNPX-M3-TZB-ALK SNPX-M4-TZB-ALK SNPX-M5-TZB-ALK SNPX-M6-TZB-ALK SNPX-M3-TBZ-ALK SNPX-M4-TBZ-ALK SNPX-M5-TBZ-ALK SNPX-M6-TBZ-ALK SNF-M3-TBZ-SUC-ALK SNF-M4-TBZ-SUC-ALK SNF-M5-TBZ-SUC-ALK SNF-M6-TBZ-SUC-ALK SNFS-M3-SUC-ALK SNFS-M4-SUC-ALK SNFS-M5-SUC-ALK SNFS-M6-SUC-ALK SNFX-M3-TZB-ALK SNFX-M4-TZB-ALK SNFX-M5-TZB-ALK SNFX-M6-TZB-ALK SNFX-M3-TBZ-ALK SNFX-M4-TBZ-ALK SNFX-M5-TBZ-ALK SNFX-M6-TBZ-ALK SNMX-M3-TZB-ALK SNMX-M4-TZB-ALK SNMX-M5-TZB-ALK SNMX-M6-TZB-ALK SNMX-M3-TBZ-ALK SNMX-M4-TBZ-ALK SNMX-M5-TBZ-ALK SNMX-M6-TBZ-ALK
Image Hexalobular Socket Truss Head Screws with Nylon Patch Hexalobular Socket (with Pin) Pan Head Machine Screws with Washer with Nylon Patch Hex Socket Set Screws (with Pin) with Nylon Patch Cross Recessed (with Pin) Pan Head Machine Screws with Nylon Patch Five-Lobe Socket with Pin Flat Head Screws with Nylon Patch Five-Lobe Socket with Pin Flat Head Screws with Nylon Patch Rosette Washer Set Two-Hole Flat Head Machine Screws with Nylon Patch Two-Hole Flat Head Machine Screws with Nylon Patch Rosette Washer Set Ultra Low Profile Tamper-Resistant Screws with Nylon Patch
Part Name Hexalobular Socket Truss Head Screws with Nylon Patch Hexalobular Socket (with Pin) Pan Head Machine Screws with Washer with Nylon Patch Hex Socket Set Screws (with Pin) with Nylon Patch Cross Recessed (with Pin) Pan Head Machine Screws with Nylon Patch Five-Lobe Socket with Pin Flat Head Screws with Nylon Patch Five-Lobe Socket with Pin Flat Head Screws with Nylon Patch Rosette Washer Set Two-Hole Flat Head Machine Screws with Nylon Patch Two-Hole Flat Head Machine Screws with Nylon Patch Rosette Washer Set Ultra Low Profile Tamper-Resistant Screws with Nylon Patch
Part Number SNMXS-ALK SRTSQ-TZB-ALK SRHSET-ALK SRP-TZB-ALK SRGFS-ALK SRGFS-ALK-SET SRTFS-ALK SRTFS-ALK-SET SRSHS-ALK
Feature High Tightening Torque
Truss Machine Screws
Nylon Patch		 Hexalobular Socket
With Pin
Captive Washer
I=3		 Hex Socket Set Screws
With Pin		 Cross Recesses
With Pin
Nylon Patch		 Five-Lobe
With Pin
Nylon Patch		 Five-Lobe
With Pin
Nylon Patch		 Two-Hole
Nylon Patch		 Two-Hole
Nylon Patch		 Ultra Low Head Height
Tamper-Resistance Screws
Nylon Patch
Material SUSXM7 (Equivalent to SUS304) Steel Steel Steel SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Equivalent to SUS304 Equivalent to SUS304 SUSXM7 (Equivalent to SUS304)
Surface Treatment - Trivalent chromate treatment Ferrosoferric Oxide Film (Black) Trivalent chromate treatment - - - - -
Thread Size M3 ～ M8 M2 ～ M4 M5 ～ M8 M3 ～ M6 M4 ～ M6 M4 ～ M6 M3 ～ M6 M3 ～ M6 M2 ～ M4
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SNMXS-M3-ALK SNMXS-M4-ALK SNMXS-M5-ALK SNMXS-M6-ALK SNMXS-M8-ALK SRTSQ-M2.6-TZB-ALK SRTSQ-M2-TZB-ALK SRTSQ-M3-TZB-ALK SRTSQ-M4-TZB-ALK SRHSET-M5-ALK SRHSET-M6-ALK SRHSET-M8-ALK SRP-M3-TZB-ALK SRP-M4-TZB-ALK SRP-M5-TZB-ALK SRP-M6-TZB-ALK SRGFS-M4-ALK SRGFS-M5-ALK SRGFS-M6-ALK SRGFS-M4-ALK-SET SRGFS-M5-ALK-SET SRGFS-M6-ALK-SET SRTFS-M3-ALK SRTFS-M4-ALK SRTFS-M5-ALK SRTFS-M6-ALK SRTFS-M3-ALK-SET SRTFS-M4-ALK-SET SRTFS-M5-ALK-SET SRTFS-M6-ALK-SET SRSHS-M2.5-ALK SRSHS-M2-ALK SRSHS-M3-ALK SRSHS-M4-ALK
Image System 5 Screws with Nylon Patch System 6 Screws with Nylon Patch Hex Lock Nuts Hex Lock Nuts - Titanium Eccentric Lock Washer™ Ribbed Lock Washers Ribbed Lock Washers High Intensity Flat Washers
Part Name System 5 Screws with Nylon Patch System 6 Screws with Nylon Patch Hex Lock Nuts Hex Lock Nuts - Titanium Eccentric Lock Washer™ Ribbed Lock Washers Ribbed Lock Washers High Intensity Flat Washers
Part Number SRS5S-ALK SRS6A-ALK SWUS SWUT SWAS-EW SWR SWRS SWF
Feature System 5 Shape System 6 Shape Vibration Resistant Lightweight
Nonmagnetic
Vibration Resistant		 Vibration resistant treatment with commercial hexagon nut Vibration Resistant Vibration Resistant Vibration Resistant
High Strength
Material SUSXM7 (Equivalent to SUS304) A5056 SUS304 Grade 2 Titanium SUS304 Steel Stainless Steel Steel
Surface Treatment - - - Special Chemical Polishing - Ferrosoferric Oxide Film (Black) - Ferrosoferric Oxide Film (Black)
Thread Size M2 ～ M2.6 M3 ～ M5 M6 ～ M12 M3 ～ M10 M6 ～ M12 M2 ～ M20 M1.6 ～ M20 M6 ～ M16
Operating Temperature (℃) - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SRS5S-M2.5-ALK SRS5S-M2.6-ALK SRS5S-M2-ALK SRS6A-M3-ALK SRS6A-M4-ALK SRS6A-M5-ALK SWUS-M10 SWUS-M12 SWUS-M6 SWUS-M8 SWUT-M10 SWUT-M3 SWUT-M4 SWUT-M5 SWUT-M6 SWUT-M8 SWAS-10-EW SWAS-12-EW SWAS-6-EW SWAS-8-EW SWR-10 SWR-12 SWR-16 SWR-2 SWR-2.5 SWR-20 SWR-3 SWR-4 SWR-5 SWR-6 SWR-8 SWRS-1.6 SWRS-10 SWRS-12 SWRS-16 SWRS-2 SWRS-2.5 SWRS-20 SWRS-3 SWRS-4 SWRS-5 SWRS-6 SWRS-8 SWF-10 SWF-12 SWF-16 SWF-6 SWF-8

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No. 2: Vacuum environments

No. 2: Vacuum environments

Vacuum technology is often used in semiconductor manufacturing equipment. A vacuum is not required for all equipment. A vacuum would mainly be required for equipment that uses plasma or an electron beam. In Part 2, we introduce some NBK products that are ideal for use in these vacuum environments!

Description of Tamper Resistant Screws for the Engineers

Description of Tamper Resistant Screws for the Engineers

This is the page on tamper-resistant screws in "Description of Special Screws for Designers." We introduce here what tamper-resistant screws are, the advantages of their use, various usage examples, and their types and characteristics.

Galling and Seizing

Galling and Seizing

This is a phenomenon that occurs while tightening, where the surface of the screw thread melts or welds due to frictional heat and the screw stops moving. To resolve galling, NBK's special surface treatment screws, such as those with fluorine coating, are recommended.

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

Micro Screws: M0.6 (S0.6) to M2.6 Lineup

NBK offers a wide-ranging lineup of small-diameter screws in various shapes and materials.
Various head diameters and heights are available for the same screw diameters, contributing to saving space.

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