S-97345A188 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure.
• Precise component alignment and location ensured by the 1-3/4" shoulder with tight length tolerance, reducing assembly errors.
• High-strength performance with 70,000 psi tensile strength and 35,000 psi minimum shear strength for demanding mechanical applications.
• Reliable, fine-thread engagement from the 10-32 UNF thread with Class 3A fit, providing vibration resistance and secure fastening.
• Easy installation and removal using the hex socket drive and knurled head, offering superior grip and torque application.
• Compliance with industry standards including ASME B18.3, ensuring interchangeability and quality in precision assemblies.
• Environmental regulation adherence with RoHS 3 and REACH compliance, making it suitable for global supply chains and sensitive applications.

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw is engineered to address critical challenges in precision machinery and industrial equipment. The 10-32 UNF fine thread with a Class 3A fit ensures minimal backlash and superior vibration resistance, which is vital in dynamic assemblies like rotating shafts, linkages, and pivoting mechanisms. The extended 1-3/4" shoulder length provides a stable bearing surface for components such as gears, pulleys, and spacers, maintaining exact alignment and reducing wear. Manufactured to ASME B18.3 specifications, it guarantees dimensional consistency and reliability. The hex socket drive and knurled head facilitate secure tool engagement in confined spaces, while the corrosion-resistant 316 stainless steel material ensures long-term performance in moist or chemically aggressive environments, from marine hardware to food processing equipment.

Specification Summary & Compliance

This shoulder screw features a 10-32 UNF fine thread with Class 3A fit for high precision, a shoulder diameter of 1/4" with tolerance from -0.004" to -0.002", and a shoulder length of 1-3/4" with tolerance from -0.005" to 0.005". It meets ASME B18.3 specifications and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and material integrity.