S-97832A294 5/16"-24 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 and extended service life.
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high-stress conditions.
• Precise Class 3A thread fit ensures tight, secure fastening with minimal backlash in critical assemblies.
• Enhanced grip and torque application from the knurled socket head, reducing tool slippage during installation.
• Fine UNF thread design provides superior vibration resistance and improved load distribution compared to coarse threads.
• Standardized dimensions per ASME B18.3 guarantee interchangeability and ease of integration into existing designs.
• Compliance with RoHS 3 and REACH regulations ensures environmental safety and suitability for global markets.

Professional Applications & Engineering Value

This 5/16"-24 UNF Stainless Steel Shoulder Screw is engineered to address common industrial challenges such as component misalignment, pivot point wear, and rotational stability. The precision-machined shoulder acts as a reliable bearing surface or shaft, minimizing friction and wear in moving assemblies. Manufactured from 18-8 Stainless Steel, it provides excellent corrosion resistance, making it suitable for applications in machinery, automation, and outdoor equipment where moisture or chemicals are present. The Class 3A thread fit and fine UNF threads ensure a secure, vibration-resistant connection, critical in high-cycle operations. The knurled socket head with a hex drive allows for high-torque installation without cam-out, enhancing assembly efficiency and reliability in production lines.

Specification Summary & Compliance

This shoulder screw features a 5/16"-24 UNF fine thread with a Class 3A thread fit for high precision. The shoulder diameter is 3/8" with a tight tolerance of -0.004" to -0.002", and the shoulder length is 1/8" with a tolerance of -0.005" to 0.005". It is manufactured in compliance with ASME B18.3 specifications and meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring safety and regulatory adherence for industrial use.