S-95635A594 3/8"-16 x 1/2" ASME B18.3 Tamper-Resistant Hex-Drive Stainless Steel Button Head Screws

Key Features & Benefits at a Glance

• Enhanced tamper-resistance with specialized hex drive requiring matching tools, preventing unauthorized access in sensitive applications
• Superior corrosion resistance through 18-8 stainless steel construction and passivated finish, ensuring longevity in harsh environments
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding industrial applications
• Precise thread engagement with Class 3A fit and UNC coarse threading, providing reliable fastening and vibration resistance
• Low-profile rounded head design offering smooth surface finish while maintaining secure drive engagement
• Full regulatory compliance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
• Versatile security solution combining tamper-resistant drive with fully threaded design for maximum fastening integrity

Professional Applications & Engineering Value

These 18-8 stainless steel tamper-resistant hex button head screws address critical security and durability challenges in industrial settings. The passivated finish provides exceptional corrosion resistance, making them ideal for outdoor equipment, marine applications, and chemical processing facilities where environmental exposure is a concern. The tamper-resistant hex drive with 7/32" size prevents unauthorized disassembly in public infrastructure, transportation systems, and secure enclosures. With Class 3A thread fit and UNC coarse threading, these fasteners deliver reliable performance in high-vibration environments while the rounded button head profile minimizes snagging hazards in machinery and consumer products. The combination of 70,000 psi tensile strength and Rockwell B70 hardness ensures these screws maintain integrity under substantial mechanical stress.

Specification Summary & Compliance

This heavy-duty security screw features precise Class 3A thread fit with 3/8"-16 UNC coarse thread spacing and full threading along the 1/2" length. Manufactured to ASME B18.3 specifications with dimensional accuracy including 0.656" head diameter and 0.199" head height. The fastener is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries and applications.