S-97345A122 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
• High-strength performance offering 70,000 psi tensile strength and 35,000 psi minimum shear strength for reliable load-bearing applications
• Precise thread engagement with Class 3A UNC coarse threads ensuring secure, vibration-resistant fastening in demanding assemblies
• Secure and efficient installation via the knurled hex socket head, providing enhanced grip and reducing tool slippage during torque application
• Accurate component alignment with a 3/16" shoulder diameter and controlled tolerances, minimizing play in pivoting or rotating mechanisms
• Regulatory compliance assurance meeting RoHS 3 and REACH standards, supporting use in regulated industries and global supply chains
• Durable material properties with a Rockwell B79 hardness, balancing toughness and machinability for long-term reliability

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and marine equipment where corrosion resistance and structural integrity are paramount. The 8-32 UNC Class 3A thread with coarse spacing provides rapid assembly and high resistance to loosening under dynamic loads, while the 3/16" shoulder with tight diameter and length tolerances ensures exact component positioning, reducing wear in bushings or bearings. The knurled hex socket head enhances installation control, preventing cam-out and damage in confined spaces. Ideal for high-performance applications such as robotic arms, conveyor systems, and medical devices, this fastener delivers consistent performance in demanding industrial environments, supported by its robust 70,000 psi tensile strength and compliance with international environmental standards.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precision engagement, and features a shoulder diameter tolerance of -0.004" to -0.002" and shoulder length tolerance of -0.005" to 0.005" to ensure dimensional accuracy. Manufacturing and material specifications align with industry requirements for 316 stainless steel fasteners, and the product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant, confirming its suitability for use in regulated applications without hazardous substances.