S-91273A551 10-32 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Enhanced durability and reduced galling thanks to the Black Oxide finish, providing reliable performance under stress.
• Precise alignment and secure mounting with a Class 2A thread fit and standard shoulder fit, minimizing assembly errors.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for demanding applications.
• Easy installation and removal with a hex drive and knurled head, ensuring firm grip and torque application.
• Consistent dimensional accuracy with fine UNF threads and tight shoulder tolerances for repeatable performance.
• Compliance with global regulations including RoHS 3 and REACH, ensuring safe and sustainable use in various industries.

Professional Applications & Engineering Value

This 10-32 UNF fine thread shoulder screw is engineered to address common industrial challenges such as misalignment and component wear. Made from 18-8 stainless steel with a Black Oxide finish, it resists corrosion and reduces friction, extending service life in machinery, automotive assemblies, and precision equipment. The hex drive and knurled head facilitate quick, secure fastening, while the 3/16" shoulder length provides stable support for rotating parts like bearings and pulleys. Its high tensile and shear strength ensures reliability under dynamic loads, making it a top choice for engineers seeking durable, compliant fastening solutions.

Specification Summary & Compliance

This shoulder screw adheres to Class 2A thread fit and UNF fine thread standards, with precise shoulder diameter and length tolerances (e.g., shoulder diameter: -0.004" to -0.002"). It meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory alignment for industrial use.