S-92785A551 5/16"-18 x 1 1/4" ASME B18.3 Set Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance from 18-8 stainless steel construction, ideal for harsh industrial environments
• Maximum holding power with Class 3A thread fit ensuring tight, secure fastening in critical applications
• Enhanced grip and alignment through 90° cone point design that bites into mating surfaces
• High-strength durability with Rockwell B80 hardness for reliable performance under stress
• Easy installation and removal using standard 5/32" hex drive tools
• Precision-engineered threads with UNC coarse spacing for quick assembly and reduced cross-threading risk
• Regulatory compliance assurance meeting ASME B18.3, RoHS 3, and REACH standards

Professional Applications & Engineering Value

This 18-8 stainless steel hex socket set screw delivers exceptional performance in demanding industrial applications where vibration resistance and secure positioning are critical. The headless design and 90° cone point create permanent, flush-mount fastening solutions for shafts, collars, and pulleys. The UNC coarse threads with Class 3A fit provide superior engagement in both soft and hard materials, while the corrosion-resistant properties of 18-8 stainless steel ensure long-term reliability in moist or chemical environments. Engineered to ASME B18.3 standards, this set screw offers predictable performance and interchangeability across industrial equipment, machinery, and precision assemblies requiring repeated adjustment or permanent positioning.

Specification Summary & Compliance

This 5/16"-18 UNC x 1-1/4" set screw features precision Class 3A thread fit with coarse thread spacing and right-hand thread direction. Manufactured to ASME B18.3 specifications with 90° cone point and 5/32" hex drive. The component is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industrial sectors.