S-93985A211 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Precise alignment and positioning with a smooth, standard socket head profile and Class 2A thread fit for reliable assembly in tight-tolerance applications.
• Exceptional strength and durability thanks to 416 Stainless Steel construction, offering 120,000 psi tensile strength and Rockwell C26 hardness for long service life.
• Secure and stable mounting enabled by a precisely machined 3/16" shoulder diameter with minimal tolerance, ensuring consistent part location.
• Easy installation and removal with a hex socket drive (3/32") and right-hand coarse UNC threads, reducing assembly time and tool wear.
• Corrosion resistance and compliance with RoHS 3 and REACH regulations, making it suitable for various industrial environments without harmful substances.
• Versatile coarse threading with 8-32 UNC threads providing strong holding power and resistance to loosening in dynamic applications.
• Optimized for high-stress applications due to the combination of material strength and precise shoulder length (1 1/2"), supporting heavy loads and repeated use.

Professional Applications & Engineering Value

This 416 Stainless Steel shoulder screw is engineered to address common challenges in precision machinery, such as misalignment and component wear. The UNC coarse thread and Class 2A thread fit ensure secure fastening with minimal play, while the smooth hex socket head allows for easy torque application in confined spaces. Its 3/16" shoulder diameter and precise shoulder length provide stable pivoting or locating functions in assemblies like rotating shafts, linkages, and jigs. Made from durable 416 stainless steel, it resists corrosion and maintains 120,000 psi tensile strength, making it ideal for automotive, aerospace, and industrial equipment where reliability and compliance with RoHS and REACH are critical.

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 of 3/16" (tolerance: -0.001" to 0") and shoulder length of 1 1/2" (tolerance: 0" to 0.002"), ensuring precise assembly. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, guaranteeing it is free from restricted substances for safe industrial use.