S-90318A508 10-32 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
• Exceptional mechanical strength offering 70,000 psi tensile and 35,000 psi shear strength for reliable performance under high stress
• Precise alignment and location ensured by the precisely machined 1" shoulder with tight diameter and length tolerances
• Secure and reliable fastening with a Class 2A thread fit and 10-32 UNF fine thread for superior vibration resistance
• Space-saving and low-profile installation enabled by the ultra-low socket head and smooth texture for flush mounting
• Easy installation and high torque capability provided by the internal hex drive (1/8") and Rockwell B70 hardness
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe and sustainable use

Professional Applications & Engineering Value

This precision shoulder screw is engineered to solve critical alignment and pivot point challenges in demanding mechanical assemblies. The 316 stainless steel material provides excellent resistance to corrosion and chemicals, making it suitable for industrial applications in manufacturing, automation, and marine environments. The 1" precise shoulder acts as a reliable axle or dowel, maintaining exact component spacing and reducing wear. Combined with the 10-32 UNF fine thread and Class 2A fit, it ensures secure, vibration-resistant fastening in high-precision equipment, robotics, and machinery where dimensional stability is paramount. The ultra-low profile socket head allows for compact designs without compromising on strength or accessibility.

Specification Summary & Compliance

This shoulder screw adheres to UNF thread standards with a Class 2A thread fit for consistent, precise engagement. The shoulder features a diameter of 1/4" with a tolerance of -0.001" to 0" and a length of 1" with a tolerance of 0" to 0.002", ensuring high dimensional accuracy. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, confirming its suitability for regulated industrial and commercial use.