S-92805A150 6-32 x 5/8" ASME B18.3, ASTM F879, MIL-DTL-18240 Stainless Steel Thread-Locking Hex Drive Flat Head Screws

Key Features & Benefits at a Glance

• Vibration-resistant performance with permanent nylon patch locking that maintains secure fastening from -65° to 250°F
• Superior corrosion resistance thanks to 18-8 stainless steel construction for extended service life in harsh environments
• High-strength reliability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding applications
• Precision thread engagement through Class 3A thread fit and UNC coarse threading for consistent installation
• Secure hex drive compatibility with 5/64" drive size preventing cam-out during installation
• Optimized flush mounting with standard 82° countersink angle for smooth surface finishing
• Full regulatory compliance meeting ASME B18.3, ASTM F879, MIL-DTL-18240 standards and RoHS 3/REACH regulations

Professional Applications & Engineering Value

Engineered for critical industrial assemblies where vibration resistance and corrosion protection are paramount, these flat head hex drive screws deliver exceptional performance in machinery, electronic enclosures, and automotive components. The 18-8 stainless steel construction provides excellent resistance to oxidation and chemical exposure, while the permanent nylon patch thread locking technology ensures fasteners remain securely in place despite constant vibration or thermal cycling between -65° and 250°F. The UNC coarse threading with Class 3A precision fit enables quick installation and reliable engagement in various materials, reducing assembly time while maintaining 70,000 psi tensile strength integrity. The combination of hex drive design and 82° countersink profile allows for flush mounting in applications where surface clearance is limited.

Specification Summary & Compliance

These fully threaded screws feature Class 3A thread fit with UNC coarse threading (6-32 size) and precise dimensional compliance with ASME B18.3 specifications. Manufacturing follows ASTM F879 and MIL-DTL-18240 standards, ensuring consistent quality and performance. The products are fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, making them suitable for global industrial applications requiring strict regulatory adherence.