S-92944A138 3/8"-16 Shoulder Screws

Key Features & Benefits at a Glance

• Exceptional corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh industrial environments and reducing replacement frequency.
• Precise component alignment and pivot points ensured by the 1/2" shoulder diameter with tight manufacturing tolerances for reliable assembly performance.
• Superior load-bearing capacity with 70,000 psi tensile strength and 35,000 psi shear strength, providing high mechanical reliability in demanding applications.
• Secure, vibration-resistant fastening thanks to the Class 3A thread fit and UNC coarse thread, minimizing the risk of loosening under dynamic loads.
• Easy installation and removal with a 5/16" hex drive and flat head design, allowing for efficient maintenance and reducing assembly time.
• Enhanced durability and wear resistance from Rockwell B55 hardness, extending service life in high-stress mechanical systems.
• Compliance with environmental and safety standards including RoHS 3 and REACH, ensuring suitability for global markets and sustainable operations.

Professional Applications & Engineering Value

This 3/8"-16 UNC shoulder screw is engineered to address critical challenges in precision machinery and industrial assemblies. The 18-8 Stainless Steel material offers excellent resistance to corrosion and oxidation, making it ideal for applications in automotive, aerospace, and manufacturing equipment where exposure to moisture or chemicals is common. The 1/2" shoulder provides a precise bearing surface for rotating parts, reducing wear and ensuring accurate alignment in linkages, pivots, and guides. With a Class 3A thread fit and coarse threading, it delivers reliable clamping force and vibration resistance, preventing failures in high-load scenarios. The flat head with hex drive allows for flush mounting and easy torque application, streamlining installation in confined spaces. This screw is a trusted solution for enhancing the longevity and performance of precision shoulder screw applications, from conveyor systems to robotic arms.

Specification Summary & Compliance

This shoulder screw adheres to strict dimensional standards, including a Class 3A thread fit for precise engagement and a shoulder diameter tolerance of -0.004" to -0.002" with length tolerance of ±0.005". It conforms to UNC coarse thread specifications and is manufactured to meet industrial requirements for strength and durability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it is free from hazardous substances and suitable for use in environmentally conscious industries.