S-92196A330 1/4"-28 x 1 3/4" ASME B18.3 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 tensile strength of 70,000 psi ensures reliable performance under high-stress applications
• Precision Class 3A thread fit provides secure, vibration-resistant fastening with minimal backlash
• Partially threaded design offers optimal grip strength while reducing weight and material usage
• Fine UNF threads deliver enhanced clamping force and superior resistance to loosening
• Hex socket drive allows for high torque application and installation in confined spaces
• Full regulatory compliance with ASME B18.3, RoHS 3, and REACH standards for global acceptance

Professional Applications & Engineering Value

This 1/4"-28 UNF Socket Head Cap Screw delivers critical engineering advantages in demanding applications where precision and reliability are paramount. The 18-8 stainless steel composition provides excellent corrosion resistance, making it ideal for marine, chemical processing, and food-grade equipment where moisture and corrosive elements are concerns. The Class 3A thread fit ensures tight tolerances for vibration-prone machinery, while the fine UNF threads offer superior clamping force distribution. The partially threaded configuration provides optimal shear strength at the shank while maintaining full thread engagement. With its hex socket drive and compact head profile, this fastener is particularly valuable in space-constrained assemblies requiring high torque application without compromising structural integrity.

Specification Summary & Compliance

This socket head cap screw features precision Class 3A thread fit with 1/4"-28 UNF fine threads and meets ASME B18.3 manufacturing specifications. The fastener maintains dimensional accuracy with a 3/16" hex drive, 3/8" head diameter, and overall 1 3/4" length with 1 1/4" minimum thread length. Compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring suitability for international industrial markets requiring verified material safety and restricted substance control.