S-92012A307 1/4"-20 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional load-bearing capacity with 140,000 psi tensile strength for reliable performance in high-stress applications
• Superior wear resistance from Rockwell C32 hardness alloy steel construction ensuring long service life
• Precise component alignment through controlled shoulder diameter tolerance (-0.001" to 0") for accurate assembly positioning
• Enhanced corrosion protection with black oxide finish providing durable surface resistance in industrial environments
• Secure installation and removal via 5/32" hex drive socket head design for reliable torque transmission
• Consistent thread engagement with Class 2A UNC coarse threads ensuring proper fit and vibration resistance
• Environmental compliance assurance meeting RoHS 3 and REACH standards for global manufacturing requirements

Professional Applications & Engineering Value

This precision shoulder screw delivers critical engineering solutions for industrial applications requiring exact component positioning and high mechanical strength. The alloy steel construction with black oxide finish provides exceptional durability against wear and corrosion in demanding environments. The precisely controlled shoulder diameter tolerance (-0.001" to 0") ensures accurate alignment in machinery, automation systems, and precision assemblies. The UNC coarse thread pattern with Class 2A fit offers reliable fastening in vibration-prone applications while the socket head design allows for compact installation in space-constrained configurations. These shoulder screws are engineered to maintain dimensional stability under heavy loads, making them ideal for pivot points, rotational mechanisms, and precision guiding systems across manufacturing, automotive, and industrial equipment sectors.

Specification Summary & Compliance

This 1/4"-20 UNC shoulder screw features Class 2A thread fit per standard inch system requirements, ensuring proper clearance and engagement. The manufacturing process maintains precise dimensional control with shoulder diameter tolerance of -0.001" to 0" and shoulder length tolerance of 0" to 0.002". The product complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, meeting international standards for hazardous substance restrictions. The combination of alloy steel material, black oxide finish, and precision shoulder fit delivers consistent performance for industrial fastening applications requiring reliability and dimensional accuracy.