S-92158A312 2-56 x 3/16" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 316 stainless steel construction, ideal for harsh environments and chemical exposure
• Exceptional thread engagement and holding power from Class 3A precision fit UNC coarse threads
• Reliable, high-torque installation enabled by the 0.035" hex drive style, preventing tool slippage
• Optimized for confined spaces with a compact, headless design and 3/16" length
• Enhanced mechanical strength and durability due to Rockwell B80 hardness, resisting deformation under load
• Secure, flush-mount fastening with a flat tip that minimizes component damage
• Full regulatory compliance meeting ASME B18.3, RoHS 3, and REACH for global industrial use

Professional Applications & Engineering Value

This 2-56 UNC set screw in 316 stainless steel is engineered to solve critical challenges in precision assembly and machinery. Its Class 3A thread fit ensures minimal backlash and vibration loosening in dynamic applications, from motor shafts to precision instruments. The hex drive and headless design allow for installation in tight spaces where standard screws cannot fit, while the flat tip provides a firm, mar-free grip on components. The coarse thread facilitates quicker assembly and disassembly, reducing labor time. With excellent corrosion resistance, it performs reliably in marine, chemical processing, and outdoor equipment, extending service life and reducing maintenance costs.

Specification Summary & Compliance

This set screw adheres to ASME B18.3 specifications, with a 2-56 UNC coarse thread and Class 3A tolerance for precise, secure fits. It is manufactured from 316 stainless steel with a Rockwell B80 hardness and features a right-hand thread direction, flat tip, and 0.035" hex drive. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulations, ensuring it meets stringent environmental and safety standards for industrial use.