S-8077A734 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• Exceptional thread reliability provided by the Class 3A fit and 8-32 UNC coarse thread, ensuring secure, vibration-resistant fastening.
• Enhanced durability and wear resistance from the Black Oxide finish, which also reduces light reflection.
• High mechanical strength with a tensile strength of 70,000 psi and minimum shear strength of 35,000 psi for demanding applications.
• Precise component alignment and smooth rotation enabled by the standardized shoulder diameter and length with tight tolerances.
• Secure and easy installation using a standard 3/32" hex drive and knurled socket head, preventing tool slippage.
• Compliance with major environmental regulations including RoHS 3 and REACH, ensuring safety and regulatory adherence.

Professional Applications & Engineering Value

This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in precision assembly and machinery. The Black Oxide finish on the corrosion-resistant 316 stainless steel provides an added layer of protection against oxidation and wear, making it suitable for applications in chemical processing, marine environments, and outdoor equipment. The 8-32 UNC coarse thread with a Class 3A fit offers superior holding power and resistance to loosening under vibration, which is essential in automotive, aerospace, and industrial automation systems. The precisely machined shoulder ensures accurate positioning of moving parts like gears, pulleys, and linkages, reducing wear and maintaining alignment. Its high tensile strength and reliable performance make it a trusted choice for engineers seeking durability and precision in mechanical fasteners.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit for high precision, conforming to UNC coarse thread standards. Key dimensional tolerances include a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005". It is manufactured from 316 stainless steel with a Rockwell B79 hardness and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring adherence to environmental and safety regulations.