S-91273A712 3/4"-10 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction and black oxide finish, ideal for harsh industrial environments.
• High tensile and shear strength (70,000 psi and 35,000 psi respectively) ensures reliable performance under heavy loads and stress.
• Precise Class 2A thread fit with UNC coarse threads for easy assembly, secure fastening, and vibration resistance.
• Knurled socket head with hex drive provides superior grip and torque application, reducing tool slippage during installation.
• Accurate shoulder dimensions with tight tolerances ensure proper alignment and spacing in assemblies, minimizing part movement.
• Compliance with RoHS 3 and REACH regulations guarantees environmental safety and suitability for global industrial markets.
• Durable Rockwell B55 hardness maintains structural integrity and resists wear over extended use.

Professional Applications & Engineering Value

This shoulder screw is engineered to address critical challenges in industrial machinery, automation, and precision equipment. The 18-8 stainless steel material combined with a black oxide finish offers excellent resistance to rust and corrosion, extending service life in demanding conditions. The UNC coarse threads with a Class 2A fit facilitate quick and secure fastening, reducing assembly time while preventing loosening from vibrations. The precisely machined shoulder diameter and length provide stable pivoting, alignment, and spacing in applications like rotating shafts, linkages, and jigs. With a high tensile strength of 70,000 psi, it reliably handles heavy loads, making it ideal for use in manufacturing, automotive, and aerospace sectors where durability and precision are paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent dimensional accuracy. Key specifications include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005", ensuring precise assembly. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, meeting stringent environmental and safety requirements for industrial components.