S-94135A127 8-32 x 1 1/4" ASME B18.6.3 Tamper-Resistant Drilled Spanner Stainless Steel Truss Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Superior holding power from fully threaded UNC coarse design, preventing loosening under vibration
• High torque application capability through drilled spanner drive, reducing tool slippage during installation
• Enhanced load distribution with wide rounded truss head, minimizing surface damage and pull-through
• Reliable mechanical performance backed by 70,000 psi tensile strength and Rockwell B87 hardness
• Precise thread engagement with Class 2A fit, ensuring consistent assembly quality
• Broad regulatory compliance meeting ASME B18.6.3, RoHS 3, and REACH standards for global applications

Professional Applications & Engineering Value

These 8-32 UNC rounded truss head screws in 18-8 stainless steel deliver critical solutions for industrial assembly challenges. The fully threaded coarse design provides maximum grip in soft materials and plastics, while the drilled spanner drive enables high-torque installation in confined spaces without cam-out. The wide truss head profile distributes clamping force over a larger area, preventing damage to sensitive surfaces in electronics, machinery, and automotive applications. With 70,000 psi tensile strength and corrosion-resistant properties, these fasteners maintain integrity in demanding environments where vibration resistance and long-term reliability are paramount.

Specification Summary & Compliance

Manufactured to ASME B18.6.3 specifications with Class 2A thread fit for consistent dimensional accuracy. Features 8-32 UNC coarse threads with right-hand direction and full threading along the 1-1/4" length. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.