S-8077A433 10-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial and marine environments
• Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance
• Precise alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit
• High mechanical strength with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Secure installation and removal with hex socket drive and knurled head for superior grip
• Reliable dimensional stability with tight shoulder diameter and length tolerances for consistent assembly
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for safe, regulated use

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw with black oxide finish is engineered to address critical industrial challenges, such as misalignment and component wear in rotating assemblies. The 10-24 UNC coarse threading and Class 3A fit provide secure fastening with minimal backlash, essential for precision machinery, conveyor systems, and automation equipment. The 4-1/2" shoulder length acts as a reliable pivot or spacer, reducing friction and extending the lifespan of connected parts. Its hex socket drive and knurled head facilitate easy installation in confined spaces, making it a versatile choice for OEMs and maintenance teams seeking durable, RoHS and REACH compliant solutions.

Specification Summary & Compliance

This shoulder screw adheres to ASME B18.3 specifications, featuring a 10-24 UNC thread with Class 3A fit for high precision. Dimensional tolerances include shoulder diameter of -0.004" to -0.002" and shoulder length of -0.005" to 0.005". The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and suitability for global industrial markets.