S-8077A218 6-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life.
• Enhanced durability and wear resistance from the black oxide finish, providing a protective layer against abrasion and oxidation.
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi shear strength for reliable load-bearing in demanding applications.
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash, improving assembly accuracy and joint integrity.
• Secure and easy installation with a hex socket drive and knurled head, allowing for firm tool grip and reduced slippage during torque application.
• Versatile shoulder design with a 1-1/2" shoulder length for precise component alignment and spacing in machinery and assemblies.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safety and regulatory adherence for global supply chains.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and industrial equipment. The black oxide finish not only enhances corrosion resistance but also reduces friction during installation, prolonging tool life. With a coarse 6-32 UNC thread and Class 3A fit, it provides reliable, vibration-resistant fastening in high-stress environments, such as pivoting joints and rotating assemblies. The knurled socket head and hex drive enable efficient torque transmission, minimizing the risk of stripping and ensuring consistent performance in repetitive maintenance cycles. Ideal for applications requiring exact alignment, the shoulder feature supports bearings, gears, and linkages, reducing wear and improving operational efficiency.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for precise dimensional accuracy, including a shoulder diameter tolerance of -0.004" to -0.002" and length tolerance of -0.005" to 0.005". Manufactured from 316 stainless steel with a hardness of Rockwell B79, it meets industry specifications for strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in regulated industrial and electronic applications.