S-94035A540 10-32 MS51576-22, NASM51576 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction and passivated finish for long-lasting performance in harsh environments.
• Exceptional mechanical strength offering 70,000 psi tensile strength and Rockwell B55 hardness for reliable, heavy-duty applications.
• Precise alignment and smooth rotation ensured by the accurately machined 3/4" shoulder with minimal diameter tolerance.
• Secure and easy installation with a standard hex socket head and 1/8" drive, preventing stripping and enabling high torque application.
• Reliable thread engagement due to the 10-32 UNF fine thread and Class 2A fit, reducing the risk of cross-threading and loosening.
• Broad industry compliance meeting MS51576-22 specifications, RoHS 3, and REACH, ensuring safety and environmental standards are met.
• Versatile inch-dimension design compatible with a wide range of machinery and equipment requiring precise shoulder screw fasteners.

Professional Applications & Engineering Value

This 10-32 UNF shoulder screw is engineered to address critical alignment and pivot point requirements in precision machinery, automation systems, and rotating assemblies. The 18-8 stainless steel material, enhanced by a passivated finish, provides excellent resistance to oxidation and chemical exposure, making it ideal for demanding environments like medical devices, aerospace components, and food processing equipment. The 3/4" shoulder length and precise shoulder diameter ensure minimal clearance, allowing for exact positioning of moving parts such as gears, bearings, and linkages. Its fine thread and Class 2A thread fit contribute to vibration resistance and secure fastening, reducing maintenance needs and enhancing operational reliability in high-stress applications.

Specification Summary & Compliance

This shoulder screw features a 10-32 UNF fine thread with Class 2A thread fit for precise tolerance, a shoulder diameter of 1/4" with tight tolerance (-0.001" to 0"), and a shoulder length of 3/4" (tolerance 0" to 0.002"). It complies with MS51576-22 specifications and is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring it is free from hazardous substances and suitable for global industrial use.