S-91770A587 5/16"-18 x 1 1/2" ASME B18.6.3 Stainless Steel Truss Head Phillips Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with passivated 18-8 stainless steel construction, ideal for harsh industrial environments
• Enhanced load distribution from the wide truss head design, reducing surface pressure and material damage
• High tensile strength of 70,000 psi ensures reliable performance under heavy mechanical stress
• Easy installation and removal with Phillips No. 4 drive, compatible with standard tools
• Secure thread engagement through Class 2A coarse UNC threads, providing vibration resistance
• Full threading along the 1-1/2" length allows for maximum adjustability and holding power
• Compliance with ASME B18.6.3 and environmental regulations guarantees quality and safety for professional use

Professional Applications & Engineering Value

These rounded truss head screws are engineered to address common industrial challenges, such as vibration loosening and corrosion in demanding settings. The passivated 18-8 stainless steel offers excellent durability against moisture and chemicals, while the wide truss head distributes clamping force over a larger area, preventing surface deformation in softer materials. With a coarse UNC thread and Class 2A fit, they ensure quick assembly and reliable fastening in machinery, automotive, and construction applications, reducing maintenance needs and downtime.

Specification Summary & Compliance

This screw features precise Class 2A thread fit and adheres to UNC coarse thread standards for consistent performance. Manufactured in compliance with ASME B18.6.3 specifications, it also meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) requirements, ensuring environmental safety and regulatory adherence for industrial use.