S-91274A076 8-32 x 1 1/4" ASME B18.3, ASTM A574, ASTM B117 Alloy Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with zinc-flake coating, ideal for harsh industrial environments
• Exceptional tensile strength of 170,000 PSI ensures reliable performance under high-stress conditions
• Precise Class 3A thread fit guarantees secure fastening and vibration resistance
• Rockwell C37 hardness provides excellent wear resistance and long service life
• Standard hex drive design enables easy installation with common tools in confined spaces
• Compliance with ASME B18.3 and ASTM A574 ensures consistent quality and interchangeability
• RoHS 3 and REACH compliance meets environmental regulations for global industrial use

Professional Applications & Engineering Value

These 8-32 UNC Socket Head Cap Screws are engineered to address critical industrial fastening challenges. The zinc-flake-coated alloy steel construction delivers superior corrosion protection, making them ideal for machinery, automotive assemblies, and outdoor equipment exposed to moisture and chemicals. With a coarse thread spacing and Class 3A thread fit, they provide rapid installation and secure holding power in high-vibration applications. The partially threaded design allows for precise clamping force distribution, while the hex drive ensures efficient torque application in tight spaces. These screws are trusted in heavy-duty applications where 170,000 PSI tensile strength and consistent performance are non-negotiable.

Specification Summary & Compliance

This product features precise Class 3A thread fit per UNC standards with coarse thread spacing for reliable engagement. Manufacturing complies with ASME B18.3 and ASTM A574 specifications, ensuring dimensional accuracy and mechanical properties. The screws are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming environmental safety for industrial use worldwide.