S-8077A371 10-32 ASME B18.3 Shoulder Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 316 stainless steel and black oxide finish, ideal for harsh environments
• High-strength performance with 70,000 psi tensile and 35,000 psi shear strength for demanding applications
• Precise Class 3A thread fit ensures reliable engagement and vibration resistance in assemblies
• Knurled socket head provides enhanced grip for secure installation with hex drive tools
• Accurate shoulder dimensions maintain consistent alignment and spacing in rotating components
• Compliance with ASME B18.3 guarantees standardized quality and interchangeability
• RoHS 3 and REACH compliant for safe use in regulated industries and global markets

Professional Applications & Engineering Value

This 316 stainless steel shoulder screw with black oxide finish is engineered to address critical challenges in precision machinery, automation systems, and corrosive environments. The 10-32 UNF fine thread and Class 3A fit provide exceptional clamping force and resistance to loosening under dynamic loads, while the precisely machined shoulder ensures accurate component positioning in linkages, bearings, and pivots. Its high tensile and shear strength supports heavy-duty applications, from industrial robots to conveyor systems, reducing maintenance frequency and enhancing operational reliability. The combination of corrosion-resistant materials and knurled socket head design delivers long-term durability and ease of installation in confined spaces.

Specification Summary & Compliance

This shoulder screw features a Class 3A thread fit with 10-32 UNF fine thread and precise shoulder dimensions (diameter: 1/4" with -0.004" to -0.002" tolerance; length: 1" with -0.005" to 0.005" tolerance). It is manufactured to ASME B18.3 specifications and complies with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring environmental safety and industry-standard performance.