S-94414A628 3/8"-16 x 1 1/2" ASME B18.3, ASTM F835 Alloy Steel Torx Flat Head Screws

Key Features & Benefits at a Glance

• Superior torque transmission with Torx Plus IP45 drive that prevents cam-out and reduces tool wear
• Exceptional durability through black-oxide alloy steel construction providing reliable corrosion resistance
• Enhanced load-bearing capacity with 140,000 psi tensile strength and Rockwell C39 hardness for demanding applications
• Precise thread engagement with Class 3A UNC coarse threading ensuring secure fastening in various materials
• Optimal flush mounting with standard 82° countersink angle and flat head design for seamless surface integration
• Full-thread coverage along the 1-1/2" length provides maximum grip and holding power
• Regulatory compliance meeting ASME B18.3, RoHS 3, and REACH standards for global industrial use

Professional Applications & Engineering Value

These 3/8"-16 UNC Torx Plus flat head screws deliver exceptional engineering value in industrial settings where high torque transmission and reliable fastening are critical. The black-oxide alloy steel construction combined with Class 3A threading provides superior resistance to vibration loosening and environmental factors, making them ideal for machinery assembly, automotive components, and heavy equipment manufacturing. The Torx Plus IP45 drive system eliminates cam-out issues common in high-torque applications, while the 82° countersink angle ensures flush mounting in precision engineering applications. These industrial screws maintain integrity under extreme stress conditions, offering engineers a dependable solution for critical connections requiring both 140,000 psi tensile strength and consistent performance.

Specification Summary & Compliance

This fastener maintains Class 3A thread fit per UNC standards with precise 3/8"-16 coarse threading and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications (ASTM F835) ensuring dimensional accuracy and performance reliability. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, meeting international environmental and safety standards for industrial components. With 0.781" head diameter and fully threaded 1-1/2" length, these screws deliver consistent performance across demanding applications.