S-92012A303 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional strength and durability with 140,000 psi tensile strength and Rockwell C32 hardness for reliable performance in demanding applications
• Precise shoulder alignment featuring 5/16" shoulder diameter with tight tolerances for accurate component positioning and reduced vibration
• Superior corrosion resistance through black oxide finish that protects against rust and extends service life in harsh environments
• Easy installation and removal with hex socket drive design requiring only a 5/32" hex key for efficient assembly and maintenance
• Reliable thread engagement with Class 2A fit UNC coarse threads ensuring consistent fastening performance and reduced cross-threading risk
• Right-hand thread design compatible with standard industrial equipment for straightforward integration into existing systems
• Environmental compliance assurance meeting RoHS 3 and REACH regulations for safe use across global markets

Professional Applications & Engineering Value

This alloy steel shoulder screw delivers critical engineering solutions where precise alignment and rotational control are paramount. The 5/16" shoulder diameter with precise tolerances provides exceptional bearing surface for components in machinery, automation systems, and precision instruments, eliminating misalignment issues that cause premature wear. The black oxide finish offers superior corrosion protection in industrial environments where moisture and chemicals are present. With 140,000 psi tensile strength and UNC coarse threads, this fastener maintains integrity under high stress conditions while the socket head design allows for compact installations in confined spaces. Ideal for precision assemblies requiring repeated disassembly, these shoulder screws provide lasting value in manufacturing equipment, robotics, and automotive applications.

Specification Summary & Compliance

This precision shoulder screw features 1/4"-20 UNC coarse threads with Class 2A fit for standard industrial compatibility. The shoulder maintains precise dimensional control with diameter tolerance of -0.001" to 0" and length tolerance of 0" to 0.002". Manufactured from high-strength alloy steel with Rockwell C32 hardness, this component meets rigorous performance standards. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global industrial markets.