S-92805A725 3/8"-16 x 1" 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 locking with permanent nylon patch that maintains secure fastening from -65° to 250°F
• Superior corrosion resistance from 18-8 stainless steel construction for long-term reliability in harsh environments
• Precision thread engagement with Class 3A fit ensures consistent performance and reduced installation issues
• High tensile strength of 70,000 psi provides reliable load-bearing capacity for demanding applications
• Easy installation and removal with standard 7/32" hex drive and fully threaded design
• Industry-standard compliance meeting ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications
• Environmental responsibility with RoHS 3 and REACH compliance for sustainable manufacturing

Professional Applications & Engineering Value

These 3/8"-16 UNC flat head screws with nylon patch locking deliver exceptional engineering value in industrial applications where vibration resistance and corrosion protection are critical. The 18-8 stainless steel construction provides excellent durability against moisture, chemicals, and environmental exposure, while the Class 3A thread fit ensures precise engagement and reduces the risk of cross-threading during installation. The permanent nylon patch thread locker maintains fastener integrity across a wide temperature range (-65° to 250°F), making these flat head screws ideal for machinery, equipment assembly, and structural applications where thermal cycling and dynamic loads are present. The combination of 70,000 psi tensile strength and Rockwell B55 hardness ensures reliable performance in high-stress environments without compromising corrosion resistance.

Specification Summary & Compliance

This 3/8"-16 UNC flat head screw features precision Class 3A thread fit with coarse threading and full threading along the 1" length. Manufactured to exacting standards including ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors. The 82° countersink angle provides proper seating in standard chamfered holes for flush mounting applications.