S-97768A187 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction and Black Oxide finish, ideal for harsh industrial environments.
• Precise component alignment ensured by the 3/16" shoulder length with tight tolerances, reducing assembly errors.
• High load-bearing capacity offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding applications.
• Secure and efficient installation with a 3/32" hex drive and knurled head, preventing slippage during torque application.
• Reliable thread engagement due to Class 3A UNC coarse threads, ensuring consistent fastening in right-hand direction.
• Enhanced durability from Rockwell B55 hardness, maintaining integrity under repeated stress and vibration.
• Compliance with global standards including RoHS 3 and REACH, supporting safe and sustainable industrial use.

Professional Applications & Engineering Value

This 8-32 UNC thread shoulder screw is engineered to address critical alignment and strength challenges in precision assemblies. Made from 18-8 Stainless Steel with a Black Oxide finish, it resists corrosion in moist or chemical-exposed settings, extending service life. The 3/16" shoulder length with minimal tolerances provides a stable pivot or spacer, essential in machinery, automotive, and electronics where misalignment can cause wear or failure. The hex drive and knurled head facilitate easy installation in tight spaces, while the Class 3A thread fit ensures secure fastening under high vibration. Ideal for applications like rotating shafts, bearings, and linkages, it combines high tensile and shear strength to handle dynamic loads without compromising performance.

Specification Summary & Compliance

This shoulder screw features precise dimensions, including a shoulder diameter of 3/16" with tolerance of -0.004" to -0.002" and shoulder length of 5/16" with tolerance of -0.005" to 0.005". It adheres to UNC thread standards with a Class 3A thread fit for superior accuracy. The product is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring it is free from hazardous substances and safe for industrial use globally.