S-93310A268 10-32 x 1" ASME B18.3, ASTM F879, MIL-DTL-18240 Thread-Locking Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Vibration-resistant locking performance with permanent nylon patch that maintains secure fastening in high-stress environments
• Superior corrosion resistance thanks to 18-8 stainless steel construction, ideal for harsh industrial applications
• High-strength reliability with 70,000 psi tensile strength and Rockwell B55 hardness for demanding mechanical assemblies
• Precision thread engagement through Class 3A fit and UNF fine threading ensures consistent, reliable connections
• Easy installation and removal with hex drive design providing superior torque transmission and tool access
• Wide temperature tolerance from -70° to 250°F, suitable for diverse operating environments
• Streamlined low-profile design with rounded button head that minimizes snagging while providing ample bearing surface

Professional Applications & Engineering Value

This 10-32 UNF nylon patch locking screw delivers critical vibration resistance in demanding applications where loosening under dynamic loads poses significant reliability risks. The permanent nylon patch thread locker creates consistent friction without compromising the 18-8 stainless steel material integrity, eliminating the need for secondary locking components. Engineered with Class 3A thread fit and UNF fine threading, it provides superior clamp load retention in precision equipment, electronic enclosures, and machinery assemblies. The hex drive design ensures efficient installation in confined spaces while the rounded button head offers a clean aesthetic finish. This combination addresses common industrial challenges of maintenance reduction, corrosion prevention, and assembly efficiency across automotive, aerospace, and industrial manufacturing sectors.

Specification Summary & Compliance

Manufactured to exacting standards including ASME B18.3, ASTM F879, and MIL-DTL-18240 specifications. Features Class 3A thread fit for precision applications with UNF fine thread spacing and right-hand threading. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets.