S-90318A650 6-32 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and extended service life.
• High mechanical strength and durability, offering a tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance under load.
• Precise location and alignment with a precisely fitted shoulder (5/32" diameter, 5/16" length) ensuring accurate component positioning.
• Easy installation and high torque capability using a 3/32" hex drive with an ultra-low socket head for applications with limited clearance.
• Consistent and reliable threading with a Class 2A fit and coarse UNC thread for quick assembly and secure fastening.
• Compliance with major environmental regulations, being RoHS 3 and REACH compliant for safe and sustainable use.
• Excellent hardness rated at Rockwell B70, providing good wear resistance and maintaining thread integrity.

Professional Applications & Engineering Value

This 6-32 UNC shoulder screw is engineered from 316 stainless steel to address critical needs in precision assemblies. Its corrosion-resistant properties make it suitable for demanding environments like chemical processing, marine applications, and food machinery, where moisture and corrosive agents are present. The precise shoulder fit with tight tolerances ensures accurate alignment of components such as gears, pulleys, and linkages, reducing wear and preventing misalignment. The ultra-low socket head and hex drive allow for efficient installation in confined spaces, while the coarse UNC thread and Class 2A fit provide quick, secure fastening in industrial shoulder screw applications, enhancing assembly speed and reliability in automation, robotics, and precision equipment.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 2A thread fit for consistent engagement. Key dimensions include a shoulder diameter of 5/32" (tolerance: -0.001" to 0") and shoulder length of 5/16" (tolerance: 0" to 0.002"), ensuring precise assembly. It complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, supporting environmental and safety standards in industrial use.