Break-Away Shear Nut-Anti-Theft Fastner Tamper Proof Security Shear Nut

描述

1. Performance & Material Properties
   • 304 (18-8) Stainless Steel Construction – Precision-machined from AISI 304 austenitic stainless for a tensile strength of ≈515 MPa, yield strength of ≈215 MPa and excellent ductility (>40 % elongation). The passive chromium-oxide film resists oxidation, pitting and crevice corrosion in both indoor and outdoor environments.
   • Break-Away Shear Design – Hex head is calibrated to shear off cleanly at a predetermined torque (typically 20–30 Nm), leaving a smooth, tamper-proof round stub that cannot be gripped by standard tools. Once installed, the remaining stub provides a flush, vandal-resistant finish.
   • Anti-Tamper Protection – Without specialized extraction tools, shear nuts prevent unauthorized removal of fixtures and signage. Designed to self-lock via residual thread interference after shearing, they resist back-out under vibration or attempted prying.
   • Temperature & Chemical Stability – Maintains dimensional integrity from –50 °C to +400 °C and tolerates common solvents, cleaning agents and saline atmospheres without dimensional change or loss of mechanical properties.
2. Detailed Application Range
   • Public Signage & Traffic Control – Secures street signs, license plates, parking meters, speed cameras and traffic signal housings to poles and frames, deterring theft or vandalism.
   • Utility & Metering Equipment – Locks down electric, gas and water meter covers, valve boxes and junction enclosures in municipal, industrial and commercial installations.
   • Architectural & Security Fixtures – Fastens access panels, handrails, bollards, surveillance camera mounts and anti-climb devices in airports, transit stations and high-security facilities.
   • Street Furniture & Outdoor Amenities – Ideal for park benches, bike racks, waste receptacles and lighting fixtures where theft and tampering are major concerns.
3. Effortless Installation & Operation
   • Single-Tool Installation – Use any standard hex-socket driver or torque-controlled impact gun to tighten to the specified break-away torque; no separate locking plate or nut required.
   • Clean Shearing Action – At the preset torque, the hex head cleanly shears off, leaving a uniform circular stub. The residual threads engage with the mating part to lock in place, eliminating loose hardware.
   • Rapid Deployment – Save time on high-volume installs: twist-in and shear-off in seconds. No secondary locking steps or adhesives needed; ideal for large municipal or commercial roll-outs.
   • Controlled Removal (When Needed) – Specialized extraction bits or reverse-drill tools permit maintenance crews to remove the remaining stub without damaging surrounding equipment.
4. Superior Quality & Long-Term Reliability
   • International Standards & Certification – Manufactured in ISO 9001–certified facilities to ASTM A193/A194 (for stainless steel fasteners) and ANSI/ASME B18.2.2 tolerances, ensuring dimensional accuracy (±0.1 mm) and mechanical consistency.
   • Rigorous Testing & Traceability – Each production lot undergoes chemical composition analysis (per ASTM A967), mechanical tensile and hardness testing, and ≥720 h neutral salt-spray exposure (ASTM B117). Full heat-number traceability from melt to finished part.
   • Environmental & Safety Compliance – RoHS- and REACH-compliant; free of hexavalent chromium and other restricted substances. 100 % recyclable stainless steel construction supports sustainable building standards.
   • Decades of Maintenance-Free Service – The combination of break-away security, precision-rolled threads and robust passive finish delivers long-lasting, vibration-resistant performance in even the harshest urban and industrial climates.