S-92949A876 3/8"-24 x 3" ASME B18.3, ASTM F879 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel and passivated finish, ideal for harsh industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable performance under high-stress applications
• Precise Class 3A thread fit provides superior engagement and vibration resistance in critical assemblies
• Hex drive compatibility (7/32") allows for high-torque installation with standard tools
• Fully threaded design maximizes grip length and load distribution across the entire fastener
• Rounded button head profile offers a low-profile, aesthetically clean finish while minimizing snagging hazards
• Rockwell B55 hardness maintains thread integrity and prevents stripping during repeated use

Professional Applications & Engineering Value

This 3/8"-24 UNF Class 3A Rounded Head Screw delivers critical reliability in demanding mechanical systems where fine thread spacing and high tensile strength are paramount. Engineered from 18-8 Stainless Steel with a passivated finish, it effectively resists chemical exposure and galvanic corrosion in manufacturing equipment, automotive assemblies, and marine hardware. The hex drive design ensures secure, high-torque fastening without cam-out, while the fully threaded shank provides uniform clamping force across extended joints. Its Class 3A thread fit guarantees precise alignment and eliminates backlash in precision machinery, reducing maintenance downtime and enhancing operational safety in industrial applications.

Specification Summary & Compliance

Manufactured to ASME B18.3 specifications with Class 3A thread tolerances for superior fit. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Features UNF fine threads (3/8"-24), right-hand thread direction, and meets ASTM F879 material requirements for consistent performance.