S-97832A174 8-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments.
• Precise alignment and smooth rotation ensured by the 2" shoulder with tight diameter tolerance for reduced wear.
• High tensile strength of 70,000 psi and Rockwell B55 hardness for reliable performance under heavy loads.
• Class 3A thread fit provides secure, vibration-resistant fastening with 8-32 UNC coarse threads.
• Easy installation and removal with 1/8" hex socket drive and knurled head for improved grip.
• Compliance with ASME B18.3 standards guarantees dimensional accuracy and interchangeability.
• Environmentally safe with RoHS 3 and REACH compliance, meeting global regulatory requirements.

Professional Applications & Engineering Value

This stainless steel shoulder screw is engineered to address critical alignment and durability challenges in industrial applications. The 2" shoulder length provides a stable bearing surface for rotating components like gears and pulleys, minimizing misalignment and extending equipment life. Made from 18-8 stainless steel, it offers excellent corrosion resistance in moist or chemical-exposed settings, while the Class 3A thread fit and UNC coarse threads ensure tight, vibration-proof connections. The hex socket drive and knurled head facilitate quick assembly in confined spaces, making it a reliable choice for machinery, automotive, and precision engineering projects where high-strength and long-term performance are essential.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with 8-32 UNC coarse threads and a shoulder diameter tolerance of -0.004" to -0.002" for precise alignment. It complies with ASME B18.3 specifications for dimensional consistency and is RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety standards.