S-92944A137 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 stainless steel construction, ensuring long-term reliability in harsh industrial environments.
• Precision alignment and reduced wear thanks to the 1/2" shoulder diameter with tight tolerances, providing stable pivot points and bearing surfaces.
• High load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength, suitable for demanding mechanical applications.
• Secure and reliable fastening achieved through Class 3A thread fit and UNC coarse threads, minimizing loosening under vibration.
• Easy installation and removal with a 5/16" hex drive and flat head design, allowing for efficient assembly in confined spaces.
• Consistent performance in precision assemblies due to Rockwell B55 hardness and standardized 82° countersink angle.
• Compliance with global environmental standards including RoHS 3 and REACH, ensuring safe use in regulated industries.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to address critical alignment and durability challenges in precision industrial applications. Made from 18-8 stainless steel, it offers superior corrosion resistance, making it ideal for machinery exposed to moisture, chemicals, or outdoor conditions. The 1/2" shoulder diameter with tight tolerances ensures exact positioning in assemblies, reducing wear on moving parts and maintaining operational accuracy. The Class 3A thread fit and coarse UNC threads provide secure fastening that resists vibration loosening, essential in high-stress environments like automotive, aerospace, and manufacturing equipment. The flat head with hex drive allows for flush mounting and easy access, streamlining maintenance and reducing downtime. With a 5/8" thread length, it accommodates various material thicknesses, offering versatility in design while delivering consistent performance under heavy loads.

Specification Summary & Compliance

This shoulder screw adheres to UNC thread standards with a Class 3A thread fit for high precision. Dimensions include a shoulder diameter of 1/2" (tolerance: -0.004" to -0.002") and shoulder length of 3/8" (tolerance: -0.005" to 0.005"), ensuring exacting manufacturing control. It is manufactured to meet RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliance, supporting environmentally responsible and safe industrial use.