The Precision Alliance
Tamper Resistant Fasteners
Hexalobular Socket Button Head Cap Screws, One Side Pan Head Screws, Two Hole Pan Head and Triwing Pan Head Screws available in sizes M3-M8. Tamper resistant fasteners which cannot be tightened or removed with a regular wrench are useful for machinery, tools, equipment, and device disassembly prevention, as well as theft and tampering prevention.
SRBS - Hexalobular Socket Button Head Cap Screw with Pin
- Socket button head cap screw with pin in the center of the hexalobular hole.
- Cannot be tightened or removed with a regular wrench. Useful for machinery, tools, equipment, and devices disassembly prevention, and theft and tampering prevention.
- A specialized wrench SRX is required for tightening and removal.
- Material/Finish: SUS304
- The Hexalobular Hole is regulated by JIS B 1015:2201 (ISO 10664-1999) "Screws with usable Hexalobular Hole".
SRHS - Hexagon Socket Button Head Cap Screw with Pin
- Socket button head cap screw with pin in the center of the hexagon socket hole.
- Cannot be tightened or removed with a regular wrench. Useful for machinery, tools, equipment, and devices disassembly prevention, and theft and tampering prevention.
- A specialized wrench SRH is required for tightening and removal.
- Material/Finish: SUS304
SROS - One-side Pan Head Machine Screw
- When tightening, a standard SROT screwdriver may be used; when loosening this is not possible. Useful for machinery, tools, equipment, and devices disassembly prevention, and theft and tampering prevention.
- A specialty tool is required for removal.
- Material/Finish: SUS304
SRTS - Two-hole Pan Head Machine Screw
- Two-Hole Pan Head Machine Screw Excellent Design; can be used as a finish trim.
- Cannot be tightened or removed with a regular wrench. Useful for machinery, tools, equipment, and devices disassembly prevention, and theft and tampering prevention.
- A Specialized Bit SRTB and the Specialized Magnetized Driver SRD is required for tightening and removal.
- Material/Finish: SUS304
SRWS - Triwing Pan Head machine Screw
- A standard screwdriver will spin free in the triangle hole when used to remove these screws.
- Cannot be tightened or removed with a regular wrench. Useful for machinery, tools, equipment, and devices disassembly prevention, and theft and tampering prevention.
- A Specialized Bit SRWB and the Specialized Magnetized Driver SRD is required for tightening and removal.
- Material/Finish: SUS304
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