S-92785A548 5/16"-18 x 5/8" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with 18-8 Stainless Steel construction, ideal for harsh environments and extended service life
• Maximum holding power provided by the 90° cone point design, ensuring a secure and permanent grip on mating parts
• Precise thread engagement with Class 3A fit for reliable, vibration-resistant assemblies and reduced risk of loosening
• High-strength durability from Rockwell B80 hardness, offering excellent resistance to wear and deformation under load
• Easy installation and removal using a standard 5/32" hex key, facilitated by the headless, flush-mount design
• Wide industrial compatibility with UNC coarse threads, allowing for quick assembly and disassembly in various applications
• Regulatory peace of mind by meeting ASME B18.3 specifications and being RoHS 3 & REACH compliant

Professional Applications & Engineering Value

This 5/16"-18 UNC set screw is engineered to solve critical challenges in power transmission and motion control systems. The headless design and 90° cone point create a flush, tamper-resistant joint that applies concentrated force, preventing shaft slippage in pulleys, gears, and collars. Manufactured from 18-8 Stainless Steel, it resists oxidation and chemical degradation, making it suitable for food processing, marine, and outdoor equipment. The Class 3A thread fit and coarse thread spacing ensure rapid, secure fastening even in high-vibration environments, reducing maintenance downtime and improving assembly reliability for industrial OEMs and MRO operations.

Specification Summary & Compliance

This set screw features a 5/16"-18 UNC thread with a Class 3A precision fit for tight tolerances and a coarse thread spacing. It is manufactured in compliance with the ASME B18.3 standard and is certified RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) compliant, ensuring adherence to environmental and safety regulations for industrial use.