S-91253A164 6-32 x 5/32" ASTM F835 Alloy Steel Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with black-oxide coating for extended service life in demanding environments
• Exceptional tensile strength (130,000 psi) ensures reliable performance under high-stress applications
• Precision Class 3A thread fit provides secure, vibration-resistant fastening with minimal play
• Undercut flat head design allows for flush mounting while maintaining maximum material strength
• 82° countersink angle ensures perfect seating in standard chamfered holes
• Hex drive compatibility enables high-torque installation without cam-out risks
• Full threading along the entire shank length maximizes grip and load distribution

Professional Applications & Engineering Value

These 6-32 UNC flat head screws with black-oxide alloy steel construction address critical industrial fastening challenges where corrosion resistance and structural integrity are paramount. The Class 3A thread fit and coarse thread spacing provide exceptional resistance to vibrational loosening in machinery, electronics, and automotive assemblies. The undercut profile maintains head strength while ensuring flush installation, eliminating protrusion issues in confined spaces. With 130,000 psi tensile strength and Rockwell C39 hardness, these fully threaded fasteners deliver reliable performance in high-stress applications while the 82° countersink angle guarantees optimal seating in precision-engineered components.

Specification Summary & Compliance

Manufactured to ASTM F835 specifications with Class 3A thread fit tolerances and UNC coarse thread profile. Compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards. Features 5/32" length, 5/64" hex drive, and right-hand thread direction for standardized industrial applications.