S-97832A170 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction for long-lasting performance in harsh environments.
• Enhanced grip and reduced tool slippage thanks to the knurled head texture and hex socket drive.
• High-strength reliability with a tensile strength of 70,000 psi and a minimum shear strength of 35,000 psi for demanding applications.
• Precise alignment and smooth rotation ensured by the Class 3A thread fit and standard shoulder fit.
• Secure fastening in fine-thread applications using the 10-32 UNF right-hand thread for vibration resistance.
• Consistent dimensional accuracy with tight tolerances on shoulder diameter and length for reliable assembly.
• Compliance with industry standards including ASME B18.3, RoHS 3, and REACH for quality and environmental safety.

Professional Applications & Engineering Value

This 10-32 UNF shoulder screw is engineered to address critical challenges in precision machinery, such as maintaining alignment in rotating assemblies and reducing wear in high-stress joints. The 18-8 Stainless Steel material offers excellent corrosion resistance, ideal for applications in chemical processing or outdoor equipment where moisture is a concern. The fine thread and Class 3A thread fit provide superior holding power, minimizing loosening under vibration in automotive or aerospace components. With a knurled head and hex drive, it ensures easy installation and removal, even in confined spaces. The precise shoulder length acts as a pivot or spacer, enhancing the lifespan of moving parts by distributing loads evenly, making it a reliable choice for industrial automation and heavy-duty machinery.

Specification Summary & Compliance

This shoulder screw features a 10-32 UNF fine thread with Class 3A thread fit for high precision, and a shoulder diameter of 1/4" with tolerances from -0.004" to -0.002". The shoulder length is 1 3/4" with tolerances of -0.005" to 0.005", ensuring consistent performance. It meets ASME B18.3 specifications for dimensional standards and is compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, confirming its suitability for environmentally conscious and high-quality industrial applications.