S-97345A318 8-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and extended service life
• Precise component alignment ensured by the 3/16" shoulder diameter with tight tolerances for reliable positioning in assemblies
• High load-bearing capability with 70,000 psi tensile strength and 35,000 psi shear strength for demanding mechanical applications
• Secure, vibration-resistant fastening thanks to Class 3A thread fit and coarse UNC threads for quick assembly and reduced loosening
• Easy installation and removal with hex socket drive and knurled head for improved grip and torque application
• Compliance with global regulations including RoHS 3 and REACH, ensuring safety and environmental standards are met
• Consistent performance backed by Rockwell B79 hardness for durability and wear resistance in repetitive use

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery, automation systems, and industrial equipment. The 8-32 UNC coarse thread with Class 3A fit provides exceptional thread engagement, minimizing the risk of cross-threading and ensuring reliable fastening in high-vibration environments. The knurled socket head enhances tool grip, reducing slippage during installation and maintenance. With a 3/16" shoulder diameter manufactured to tight tolerances, it offers exact alignment for rotating components like gears, bearings, and linkages, preventing misalignment and reducing wear. The corrosion-resistant 316 stainless steel material ensures long-term performance in moist or chemically aggressive settings, making it ideal for food processing, marine, and chemical industry applications where durability and regulatory compliance are paramount.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for precision and interchangeability. Dimensions include a shoulder diameter of 3/16" (tolerance: -0.004" to -0.002") and shoulder length of 11/32" (tolerance: -0.005" to 0.005"), ensuring consistent performance. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting use in regulated industries without hazardous substances.