S-90008A751 1/4"-20 x 1 1/4" ASME B18.3, ASTM F837 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with silver-plated 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional tensile strength of 70,000 psi ensures reliable, high-load fastening without failure
• Precise Class 3A thread fit delivers secure engagement and vibration resistance in critical assemblies
• Hex socket drive design allows for high-torque installation and easy access in confined spaces
• Compliance with ASME B18.3 standards guarantees dimensional accuracy and interchangeability
• RoHS 3 and REACH compliance ensures environmental safety and regulatory adherence for global supply chains
• Partially threaded shank provides optimal grip length for materials of varying thicknesses

Professional Applications & Engineering Value

Engineered for demanding industrial applications, this silver-plated 18-8 stainless steel socket head cap screw combines corrosion resistance with high mechanical strength to solve common fastening challenges. The UNC coarse thread and Class 3A fit ensure rapid assembly and reliable performance in vibrating machinery, automotive components, and outdoor equipment. With a Rockwell B70 hardness and 70,000 psi tensile strength, it withstands extreme operational stresses while the hex drive facilitates secure installation in tight spaces. Ideal for industrial fastening solutions requiring durability, regulatory compliance, and long-term reliability in corrosive or high-stress environments.

Specification Summary & Compliance

This socket head cap screw features a 1/4"-20 UNC coarse thread with Class 3A thread fit for precise dimensional accuracy. Manufactured to ASME B18.3 specifications with a partially threaded design, it ensures consistent performance. The screw is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting environmental and safety standards for industrial use.