S-94135A626 3/8"-16 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 and long-term reliability.
• Superior load distribution thanks to the wide Rounded Truss Head design, minimizing surface pressure and preventing material damage.
• High tensile strength of 70,000 PSI and Rockwell B87 hardness for reliable performance in demanding, heavy-duty applications.
• Secure and efficient installation with a Drilled Spanner Drive (No. 14), providing a positive grip and reducing the risk of tool slippage.
• Optimized thread engagement through coarse UNC threading and Class 2A fit, ensuring quick assembly and consistent fastening.
• Full threading along the 1 1/4" length for maximum grip and adjustability in a wide range of material thicknesses.
• Regulatory peace of mind with compliance to ASME B18.6.3, RoHS 3, and REACH, meeting strict industrial and environmental standards.

Professional Applications & Engineering Value

This 3/8"-16 UNC Rounded Truss Head Screw is engineered to address common industrial challenges such as vibration loosening and corrosion-induced failure. The 18-8 Stainless Steel material provides excellent resistance to rust and chemical exposure, making it suitable for outdoor equipment, marine hardware, and food processing machinery. The wide truss head profile offers a larger bearing surface, which helps distribute clamp load effectively, reducing the risk of damage to softer materials. Combined with a coarse UNC thread and Class 2A fit, these screws ensure rapid, reliable installation in wood, metal, and composite assemblies, minimizing downtime in production lines. The drilled spanner drive allows for high-torque application, essential for maintenance and construction where access may be limited. Ideal for structural frameworks, conveyor systems, and heavy machinery, this fastener delivers consistent performance under stress, enhancing the longevity and safety of your industrial applications.

Specification Summary & Compliance

This screw features precise UNC coarse threading with Class 2A fit, ensuring dimensional accuracy and easy assembly. It is manufactured in accordance with ASME B18.6.3 specifications, guaranteeing consistency and reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its adherence to environmental and safety standards for use in various global markets.