S-92785A549 5/16"-18 x 7/8" ASME B18.3 Set Screws
Set Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with 18-8 stainless steel construction, ideal for harsh industrial environments
- Maximum holding power through the 90° cone point design that bites into materials securely
- Precise thread engagement with Class 3A thread fit ensuring reliable, vibration-resistant fastening
- Exceptional durability from Rockwell B80 hardness, maintaining performance under repeated use
- Easy installation and removal using the 5/32" hex socket drive, even in confined spaces
- Quick assembly with coarse UNC threads that reduce cross-threading risks
- Regulatory compliance meeting ASME B18.3 standards and environmental regulations
Professional Applications & Engineering Value
This 5/16"-18 UNC set screw delivers critical engineering value in applications requiring secure component positioning against rotational or axial movement. The 18-8 stainless steel material provides excellent corrosion resistance for machinery operating in humid or chemically aggressive environments, while the headless design allows flush mounting in pulleys, gears, and collars where protruding fasteners are impractical. The 90° cone point concentrates pressure on a small surface area, creating permanent seating marks that prevent slippage in high-torque systems. Combined with Class 3A thread fit and coarse UNC threads, this fastener ensures reliable performance in vibration-prone equipment, automotive assemblies, and precision industrial machinery where alignment integrity is paramount.
Specification Summary & Compliance
This set screw maintains precise dimensional accuracy with Class 3A thread fit per UNC standards, ensuring tight tolerances for critical applications. Manufacturing conforms to ASME B18.3 specifications for dimensional consistency and performance reliability. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, containing no restricted substances. Thread specifications include 5/16"-18 UNC coarse threads with right-hand direction, 7/8" length, and 5/32" hex drive for standardized tool compatibility across industrial applications.
