S-8077A173 6-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress.
• Precise thread engagement with Class 3A UNC coarse threads ensuring secure, vibration-resistant fastening in demanding assemblies.
• Enhanced durability and wear resistance from the black oxide finish, which also reduces light reflection and provides a sleek appearance.
• Secure and efficient installation facilitated by the hex socket drive and knurled head, preventing tool slippage and enabling high-torque application.
• Accurate component alignment due to the consistent 1 3/4" shoulder length with tight tolerances, critical for precise machinery and rotating parts.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in regulated industries.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and heavy-duty equipment. The UNC coarse thread and Class 3A fit provide superior holding power and resistance to loosening under vibration, making it ideal for dynamic applications like robotics, conveyor systems, and motor assemblies. The black oxide finish enhances corrosion resistance, extending service life in humid or chemically aggressive environments. With a robust 1 3/4" shoulder length and knurled head design, it ensures exact component positioning and ease of maintenance, reducing downtime and improving operational reliability in industrial shoulder screw applications.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Key dimensional tolerances include shoulder diameter (-0.004" to -0.002") and shoulder length (-0.005" to 0.005") to ensure consistent performance. Manufactured from 316 stainless steel with a black oxide finish, it meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting use in regulated and environmentally conscious industries.