S-90344A151 10-32 x 1 1/4" ASTM A574 Socket Head Screws with Flat Washer

Key Features & Benefits at a Glance

• Enhanced corrosion resistance with black-oxide coating on both alloy steel screw and washer, extending service life in demanding environments.
• Superior tensile strength of 170,000 psi ensures reliable performance under high-stress conditions, reducing failure risks.
• Precise Class 3A thread fit provides tighter tolerances for secure, vibration-resistant assemblies in critical applications.
• Integrated flat washer distributes load evenly, minimizing surface damage and improving joint integrity.
• Hex socket drive (5/32") allows for high-torque installation with standard tools, speeding up assembly processes.
• Partially threaded design offers optimal grip length control, ideal for components requiring specific clamping zones.
• Compliance with ASTM A574, RoHS 3, and REACH guarantees material consistency and environmental safety for global supply chains.

Professional Applications & Engineering Value

This 10-32 UNF socket head cap screw is engineered to address common industrial challenges like vibration loosening and corrosion in machinery, automotive, and heavy equipment. The black-oxide alloy steel construction, combined with a Rockwell C39 hardness, ensures durability against wear and environmental exposure. Its fine thread spacing and Class 3A thread fit provide exceptional clamping force retention, reducing maintenance needs. The integrated flat washer enhances load distribution, preventing surface indentation and ensuring long-term reliability in high-tensile strength applications up to 170,000 psi.

Specification Summary & Compliance

This screw adheres to inch system dimensions with a Class 3A thread fit and UNF fine thread specifications, ensuring precise engagement. It meets ASTM A574 for material consistency, and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting safe and sustainable industrial use.