S-97345A128 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 mechanical strength with 70,000 psi tensile and 35,000 psi shear strength, ensuring reliable performance under high stress.
• Precise assembly and alignment enabled by the Class 3A thread fit and standard shoulder, minimizing play and vibration.
• Secure, non-slip installation thanks to the knurled head texture and hex socket drive, allowing for high torque application.
• Robust durability from Rockwell B79 hardness, resisting wear and deformation in demanding industrial applications.
• Broad compatibility with 8-32 UNC coarse threads, facilitating quick assembly and interchangeability in various machinery.
• Environmental compliance assurance by meeting RoHS 3 and REACH standards, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This 316 Stainless Steel Shoulder Screw is engineered to address critical challenges in precision machinery and assembly. The Class 3A thread fit and tight shoulder tolerances ensure exact alignment and reduce the risk of component misalignment, which is vital in applications like rotating shafts, pivots, and guides. The UNC coarse thread design allows for rapid installation and disassembly, boosting efficiency in production lines. Made from corrosion-resistant 316 stainless steel, it withstands exposure to chemicals, moisture, and extreme temperatures, making it suitable for industrial equipment, automotive systems, and marine environments. The knurled head and hex drive provide a secure grip, preventing tool slippage and ensuring consistent clamping force, thereby enhancing operational safety and reliability in high-vibration settings.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with an 8-32 thread size and Class 3A precision fit for superior thread engagement. Dimensions include a shoulder diameter of 3/16" with a tolerance of -0.004" to -0.002", and a shoulder length of 1-3/8" with a tolerance of -0.005" to 0.005", ensuring high dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its environmental safety and suitability for regulated industries.