S-8077A212 5-40 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction and black oxide finish, ideal for harsh environments and extended service life.
• High mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under heavy loads.
• Precise Class 3A thread fit ensures secure, vibration-resistant fastening with consistent engagement in mating components.
• Easy installation and removal with a knurled socket head and 3/32" hex drive, providing excellent grip and torque application.
• Durable shoulder design with a 5/32" diameter and 3/4" length for accurate component alignment and pivot points.
• Coarse UNC threading enables quick assembly and disassembly, reducing installation time in industrial settings.
• Compliance with environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use in global markets.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in machinery, automation, and assembly systems. The black oxide finish enhances corrosion resistance, making it suitable for humid or chemically aggressive environments, while the UNC coarse thread and Class 3A fit provide reliable, vibration-resistant fastening that minimizes loosening in dynamic applications. The knurled socket head with hex drive allows for efficient torque transmission, reducing tool slippage and installation errors. Commonly used in pivots, linkages, and rotating assemblies, this shoulder screw ensures precise alignment and durability, supporting high-stress operations in industries like automotive, aerospace, and industrial equipment manufacturing.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A fit for tight tolerances and consistent performance. Key specifications include a thread size of 5-40, shoulder diameter of 5/32" (tolerance: -0.004" to -0.002"), and shoulder length of 3/4" (tolerance: -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 applications.