S-90316A542 1/4"-20 x 1" ASME B18.6.3 Stainless Steel Flanged Hex Head Screws with Slotted Drive

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh environments and reducing replacement frequency
• Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for reliable performance under high stress
• Easy installation and removal using standard external hex/slotted drive, compatible with common tools for efficient assembly
• Enhanced load distribution and vibration resistance from the integrated flange, minimizing loosening in dynamic applications
• Precise and reliable thread engagement with UNC coarse threading and Class 2A fit, ensuring consistent fastening and reducing cross-threading risks
• Full thread coverage along the 1" length for maximum grip and adjustability in various material thicknesses
• Compliance with industry standards including ASME B18.6.3, RoHS 3, and REACH, guaranteeing quality and environmental safety for industrial use

Professional Applications & Engineering Value

This 18-8 stainless steel hex head flange screw is engineered to address common industrial challenges such as corrosion, vibration loosening, and high-stress demands. The flanged design eliminates the need for separate washers, providing a larger bearing surface that distributes clamp load evenly and resists loosening under dynamic loads. Its UNC coarse threads and Class 2A fit ensure quick assembly and reliable performance in materials like metal, plastic, and wood, reducing installation time and maintenance costs. Ideal for machinery, automotive, and construction applications, this fully threaded fastener offers exceptional durability and consistent performance, backed by stringent compliance with ASME B18.6.3 and environmental regulations like RoHS and REACH.

Specification Summary & Compliance

This screw features a 1/4"-20 UNC coarse thread with Class 2A tolerance for precise fit, a flange diameter of 33/64", and a length of 1". It is manufactured to meet ASME B18.6.3 specifications and is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006), ensuring it adheres to industry standards for quality and environmental safety.