S-8077A148 2-56 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 mechanical strength offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for high-stress applications.
• Precise Class 3A thread fit ensures reliable, vibration-resistant assemblies with consistent performance.
• Enhanced durability and reduced light glare from the black oxide finish, which also provides mild corrosion protection.
• Secure and non-slip installation facilitated by the knurled socket head and 5/64" hex drive for easy torque application.
• Accurate component alignment due to the standard shoulder fit and controlled diameter/length tolerances.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to solve critical challenges in precision assemblies. The UNC coarse thread and Class 3A fit provide excellent engagement and resistance to loosening under vibration, making it ideal for machinery, automotive, and electronic enclosures. The black oxide finish enhances surface durability while the knurled socket head allows for secure tool engagement in confined spaces. With a shoulder diameter tolerance of -0.004" to -0.002" and a Rockwell B79 hardness, it ensures precise alignment and sustained performance in corrosive or high-load environments, reducing maintenance and replacement frequency.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precision. Key dimensional tolerances include shoulder diameter (-0.004" to -0.002") and shoulder length (-0.005" to 0.005"). It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, ensuring environmental safety and regulatory adherence for industrial use.