S-92185A557 1/4"-20 x 3" Super-Corrosion-Resistant 316 Stainless Steel Socket Head Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance from 316 stainless steel construction, ideal for harsh chemical and marine environments
• Superior thread engagement and reliability with precision Class 3A thread fit for vibration-resistant assemblies
• Enhanced surface protection through passivated finish that increases durability against oxidation and wear
• High-strength performance with 70,000 psi tensile strength and Rockwell B70 hardness for demanding applications
• Secure hex drive installation using standard 3/16" hex tools, preventing cam-out and ensuring proper torque transfer
• Optimized partial threading providing both threaded engagement and smooth shank for precise component positioning
• Full regulatory compliance meeting RoHS 3 and REACH standards for global industrial use

Professional Applications & Engineering Value

These 316 stainless steel socket head cap screws deliver critical performance advantages in demanding industrial environments where corrosion resistance and mechanical reliability are paramount. The combination of Class 3A thread fit with UNC coarse threading ensures rapid assembly and superior vibration resistance in machinery, processing equipment, and marine applications. The passivated finish significantly enhances the natural corrosion resistance of 316 stainless steel, providing extended service life in chemically aggressive environments. With 70,000 psi tensile strength and Rockwell B70 hardness, these partially threaded fasteners maintain structural integrity under heavy loads while the 3/16" hex drive allows for high-torque installation without stripping. Engineered for precision equipment, manufacturing fixtures, and critical assemblies where failure is not an option.

Specification Summary & Compliance

This 1/4"-20 UNC socket head cap screw features precision Class 3A thread fit with coarse thread spacing and right-hand thread direction. The fastener meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance standards, ensuring environmental regulatory adherence for industrial applications worldwide. Manufactured from 316 stainless steel with passivated finish, the screw delivers consistent performance with a minimum thread length of 1" and overall length of 3".