S-92196A334 1/4"-28 x 4" ASME B18.3, ASTM F837 18-8 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
• Exceptional thread engagement and vibration resistance due to Class 3A UNF fine thread fit
• High tensile strength of 70,000 psi ensures reliable performance under heavy loads
• Rockwell B70 hardness provides excellent durability and wear resistance
• Secure and reliable installation with a standard 3/16" hex drive socket head
• Versatile partial threading allows for precise clamping force control in assemblies
• Full compliance with industry standards including ASME B18.3, RoHS 3, and REACH

Professional Applications & Engineering Value

This 18-8 stainless steel socket head cap screw is engineered to solve critical challenges in precision assemblies. The 1/4"-28 UNF fine thread provides superior resistance to loosening under vibration, making it ideal for machinery, automotive, and aerospace applications where reliability is paramount. The Class 3A thread fit ensures precise engagement with mating components, reducing the risk of cross-threading and assembly errors. With its Rockwell B70 hardness and 70,000 psi tensile strength, this fastener maintains integrity in high-stress environments. The partially threaded design offers optimal clamping force distribution, while the hex socket drive allows for high-torque installation in confined spaces, delivering exceptional engineering value across industrial sectors.

Specification Summary & Compliance

This socket head cap screw features precision Class 3A thread fit with UNF fine thread specifications, manufactured to ASME B18.3 standards ASTM F837. The product maintains dimensional accuracy with a 1/4"-28 thread size and 4" length. It is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and regulatory adherence for global industrial applications.