S-8077A355 3/8"-24 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh industrial environments and chemical exposure
• Enhanced durability and wear resistance from the black oxide finish, providing long-lasting performance and reduced maintenance
• Precise alignment and secure positioning due to the Class 3A thread fit and standard shoulder fit, minimizing assembly errors
• High tensile strength of 70,000 psi and shear strength of 35,000 psi for reliable performance in demanding mechanical applications
• Easy installation and removal with the hex drive socket head and knurled texture, offering improved grip and torque application
• Compliance with industry standards including ASME B18.3, ensuring consistent quality and interchangeability in professional settings
• Environmental and safety compliance with RoHS 3 and REACH regulations, supporting sustainable and safe manufacturing practices

Professional Applications & Engineering Value

This 3/8"-24 UNF shoulder screw is engineered to address critical challenges in precision assembly and high-stress environments. Made from 316 stainless steel, it offers excellent resistance to corrosion and oxidation, making it suitable for applications in marine, chemical processing, and food equipment where moisture and chemicals are prevalent. The black oxide finish enhances surface durability and reduces galling during repeated use. With a Class 3A thread fit and fine thread spacing, it ensures tight tolerances and secure fastening in machinery, automotive components, and robotics, minimizing vibration-induced loosening. The knurled head texture and hex drive design facilitate easy handling and torque control, reducing installation time and improving workflow efficiency in industrial maintenance and production lines.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with precise dimensions, including a thread size of 3/8"-24 UNF and shoulder diameter tolerance of -0.004" to -0.002". It conforms to ASME B18.3 specifications for consistent performance and interchangeability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets environmental and safety standards for hazardous substance restrictions.