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Security screws / Tamper Resistant Screws

Screws which cannot be installed or removed easily with standard tools to prevent theft and tampering.
Image Button Head Cap Screws with Hexalobular Socket and Pin Captive Button Head Cap Bolts with Hexalobular Socket (with Pin) Socket Head Cap Screws with Hexalobular Socket and Pin Button Head Cap Screws with Five-Lobe Holes (with Pin) Button Head Cap Screws with Three-Lobe Holes (with Pin) Triangular Socket Button Head Cap Screws One Side Pan Head Machine Screws Triwing Pan Head Machine Screws Two Hole Pan Head Machine Screws
Part Name Button Head Cap Screws with Hexalobular Socket and Pin Captive Button Head Cap Bolts with Hexalobular Socket (with Pin) Socket Head Cap Screws with Hexalobular Socket and Pin Button Head Cap Screws with Five-Lobe Holes (with Pin) Button Head Cap Screws with Three-Lobe Holes (with Pin) Triangular Socket Button Head Cap Screws One Side Pan Head Machine Screws Triwing Pan Head Machine Screws Two Hole Pan Head Machine Screws
Part Number SRBS SSC-SRBS SRHS SRGS SRSAS SRTRS SROS SRWS SRTS
Feature Hexalobular Socket
with Pin		 Hexalobular Socket
With Pin
Captive /
Loss Prevention		 Hex Socket
with Pin		 Five-Lobe Holes
(with Pin)		 Three-Lobe Holes
(with Pin)		 Triangular Socket Tightened
withPhillips Screwdriver		 Triwing Socket 2 Holes
Material Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304
Surface Treatment - - - - - - - - -
Thread Size M3 ～ M8 M3 ～ M8 M3 ～ M6 M3 ～ M8 M3 ～ M8 M3 ～ M6 M3 ～ M5 M3 ～ M5 M3 ～ M5
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SRBS-M3 SRBS-M4 SRBS-M5 SRBS-M6 SRBS-M8 SSC-SRBS-M3 SSC-SRBS-M4 SSC-SRBS-M5 SSC-SRBS-M6 SSC-SRBS-M8 SRHS-M3 SRHS-M4 SRHS-M5 SRHS-M6 SRGS-M3 SRGS-M4 SRGS-M5 SRGS-M6 SRGS-M8 SRSAS-M3 SRSAS-M4 SRSAS-M5 SRSAS-M6 SRSAS-M8 SRTRS-M3 SRTRS-M4 SRTRS-M5 SRTRS-M6 SROS-M3 SROS-M4 SROS-M5 SRWS-M3 SRWS-M4 SRWS-M5 SRTS-M3 SRTS-M4 SRTS-M5
Image Tamper Resistant Cap Screws with Ultra Low Profile Flat Head Screws with Hexalobular Socket and Pin Flat Head Bolts with Hexalobular Socket (with Pin) Rosette Washer Set Hex Socket Flat Head Bolts (with Pin) Five-Lobe Socket with Pin Flat Head Screws Five-Lobe Socket with Pin Flat Head Screws Rosette Washer Set 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 Triwing Flat Head Machine Screws
Part Name Tamper Resistant Cap Screws with Ultra Low Profile Flat Head Screws with Hexalobular Socket and Pin Flat Head Bolts with Hexalobular Socket (with Pin) Rosette Washer Set Hex Socket Flat Head Bolts (with Pin) Five-Lobe Socket with Pin Flat Head Screws Five-Lobe Socket with Pin Flat Head Screws Rosette Washer Set 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 Triwing Flat Head Machine Screws
Part Number SRSHS SRFXS SRFXS-SET SRHFS SRGFS SRGFS-SET SRGFS-ALK SRGFS-ALK-SET SRWFS
Feature Tamper-resistant screw with special low Profile height Hexalobular Socket
with Pin		 Hexalobular Socket with Pin Hex Socket
With Pin		 Five-Lobe
With Pin		 Five-Lobe
With Pin		 Five-Lobe
With Pin
Nylon Patch		 Five-Lobe
With Pin
Nylon Patch		 Triwing
Material SUSXM7 (Equivalent to SUS304) Equivalent to SUS304 Equivalent to SUS304 Equivalent to SUS304 SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) SUSXM7 (Equivalent to SUS304) Equivalent to SUS304
Surface Treatment - - - - - - - - -
Thread Size M2 ～ M4 M3 ～ M6 M3 ～ M6 M3 ～ M10 M4 ～ M6 M4 ～ M6 M4 ～ M6 M4 ～ M6 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 SRSHS-M2 SRSHS-M2.5 SRSHS-M3 SRSHS-M4 SRFXS-M3 SRFXS-M4 SRFXS-M5 SRFXS-M6 SRFXS-M3-SET SRFXS-M4-SET SRFXS-M5-SET SRFXS-M6-SET SRHFS-M10 SRHFS-M3 SRHFS-M4 SRHFS-M5 SRHFS-M6 SRHFS-M8 SRGFS-M4 SRGFS-M5 SRGFS-M6 SRGFS-M4-SET SRGFS-M5-SET SRGFS-M6-SET SRGFS-M4-ALK SRGFS-M5-ALK SRGFS-M6-ALK SRGFS-M4-ALK-SET SRGFS-M5-ALK-SET SRGFS-M6-ALK-SET SRWFS-M2 SRWFS-M3 SRWFS-M4 SRWFS-M5 SRWFS-M6 SRWFS-M8
Image Theft Prevention Nuts Hexalobular Socket Wrench (with Pin) for Tamper Resistant Screws Hexalobular Socket Head Cap Bits (with Pin) for Tamper Resistant Screws Hex Socket Wrench (with Pin) for Tamper Resistant Screws Hex Socket Head Cap Bits (with Pin) for Tamper Resistant Screws One Side Screwdriver for Tamper Resistant Screws Five-Lobe Socket Bits (with Pin) for Tamper Resistant Screws Tri-wing Bits for Tamper Resistant Screws Three-Lobe Socket Bits (with Pin) for Tamper Resistant Screws
Part Name Theft Prevention Nuts Hexalobular Socket Wrench (with Pin) for Tamper Resistant Screws Hexalobular Socket Head Cap Bits (with Pin) for Tamper Resistant Screws Hex Socket Wrench (with Pin) for Tamper Resistant Screws Hex Socket Head Cap Bits (with Pin) for Tamper Resistant Screws One Side Screwdriver for Tamper Resistant Screws Five-Lobe Socket Bits (with Pin) for Tamper Resistant Screws Tri-wing Bits for Tamper Resistant Screws Three-Lobe Socket Bits (with Pin) for Tamper Resistant Screws
Part Number SHNRS SRX SRXB SRH SRHB SROT SRGB SRWB SRSAB
Feature Anti-theft Nut Special Keys for SRBS Dedicated Bits for SRBS SRFXS SSC-SRBS Special Keys for SRHS SRHFS Dedicated Bits for SRHS SRHFS Special Screwdriver for SROS Dedicated Bits for SRGS Special Bits for SRWS SRWFS Dedicated Bits for SRSAS
Material SUS304 - Steel - Steel - - - -
Surface Treatment - - - - - - - - -
Thread Size M6 ～ M16 - - - - - - - -
Operating Temperature (℃) - - - - - - - - -
CAD CAD CAD CAD CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications Specifications
List SHNRS-M10 SHNRS-M10-P1.25 SHNRS-M12 SHNRS-M16 SHNRS-M6 SHNRS-M8 SRX-10 SRX-20 SRX-25 SRX-30 SRX-40 SRXB-10 SRXB-20 SRXB-25 SRXB-30 SRXB-40 SRH-2 SRH-2.5 SRH-3 SRH-4 SRH-5 SRH-6 SRHB-2 SRHB-2.5 SRHB-3 SRHB-4 SRHB-5 SRHB-6 SROT-410 SROT-510 SRGB-3 SRGB-4 SRGB-56 SRGB-8 SRWB-1 SRWB-2 SRWB-4 SRWB-5 SRWB-6 SRWB-7 SRSAB-3 SRSAB-4 SRSAB-56 SRSAB-8
Image Triangle Socket Bits for Tamper Resistant Screws Two Hole Bits for Tamper Resistant Screws Bits for Tamper Resistant Special Low Profile Cap Screws Sockets for Theft Prevention Nuts Magnetic Screwdrivers
Part Name Triangle Socket Bits for Tamper Resistant Screws Two Hole Bits for Tamper Resistant Screws Bits for Tamper Resistant Special Low Profile Cap Screws Sockets for Theft Prevention Nuts Magnetic Screwdrivers
Part Number SRTRB SRTB SRSHB SKW SRD
Feature SRTRS Dedicated Bits Special Bits for SRTS SRSHS Dedicated Bits Dedicated Tools for SHNRS Magnetic Screwdrivers
Material - - - - -
Surface Treatment - - - - -
Thread Size - - - - -
Operating Temperature (℃) - - - - -
CAD CAD CAD CAD CAD CAD
Specifications Specifications Specifications Specifications Specifications Specifications
List SRTRB-3 SRTRB-4 SRTRB-5 SRTRB-6 SRTB-10 SRTB-4 SRTB-8 SRSHB-0 SRSHB-1 SRSHB-2 SRSHB-3 SKW-10 SKW-12 SKW-16 SKW-6 SKW-8 SRD-6.35

Latest

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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SEMS Screws / Improved Fastening Efficiency Screws

SEMS Screws / Improved Fastening Efficiency Screws