S-97763A178 8-32 x 1/2" ASME B18.3 Stainless Steel Button Head Hex-Drive Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with Black-Oxide coated 18-8 Stainless Steel, ideal for harsh industrial environments
• Superior installation efficiency through the hex drive design, allowing for secure, slip-resistant tightening
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads and vibration
• Precise Class 3A thread fit for secure fastening and reduced risk of cross-threading
• Rockwell B55 hardness provides excellent durability and resistance to wear
• Full threading offers consistent grip along the entire length for uniform clamping force
• Compliance with ASME B18.3, RoHS 3, and REACH guarantees quality and environmental safety for professional use

Professional Applications & Engineering Value

These 8-32 UNC thread screws with Black-Oxide coating on 18-8 Stainless Steel are engineered to address common industrial challenges such as corrosion, vibration loosening, and installation inefficiency. The coarse thread spacing and Class 3A thread fit ensure quick assembly and reliable hold in materials like metal and hardened plastics, reducing downtime in production lines. The rounded button head and hex drive design facilitate easy access in confined spaces, making them ideal for machinery, automotive assemblies, and electronic enclosures where strength and consistent performance are critical.

Specification Summary & Compliance

These screws feature a 1/2" length with UNC coarse threads and Class 3A thread fit for precise dimensional accuracy. Manufactured to meet ASME B18.3 standards, they ensure uniformity and reliability. Additionally, they are compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmentally safe and sustainable industrial practices.