S-91375A913 3/8"-16 x 3/4" ASME B18.3, ASTM F912 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 holding power with cup point design that bites into materials for permanent, vibration-resistant fastening
- Exceptional durability from Rockwell C45 hardness alloy steel construction that resists wear and deformation under heavy loads
- Precise thread engagement with Class 3A thread fit ensuring tight tolerances and reliable performance in demanding applications
- Enhanced corrosion resistance through zinc plating that protects against rust in industrial environments
- Easy installation and removal with 3/16" hex drive that provides secure tool engagement without stripping
- Wide compatibility with UNC coarse thread profile that ensures quick assembly and disassembly in various materials
- Regulatory compliance meeting ASME B18.3 standards for consistent quality and performance
Professional Applications & Engineering Value
This 3/8"-16 UNC set screw delivers exceptional engineering value in industrial applications where vibration resistance and permanent positioning are critical. The cup point design creates concentrated pressure that digs into shaft materials, preventing slippage in pulleys, gears, and collars. Manufactured from zinc plated alloy steel with Rockwell C45 hardness, it maintains structural integrity under repetitive stress cycles. The Class 3A thread fit ensures precise engagement in threaded holes, eliminating play in precision machinery. The hex headless configuration allows for flush mounting in confined spaces while the coarse thread profile enables rapid installation in production environments. Ideal for power transmission systems, automotive components, and heavy equipment where reliable fastening is non-negotiable.
Specification Summary & Compliance
This set screw features 3/8"-16 UNC coarse threads with Class 3A thread fit for precision tolerance. Manufactured to ASME B18.3 specifications (ASTM F912) ensuring dimensional accuracy and performance consistency. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant for environmental safety. Right-hand thread direction with 3/4" length and 0.375" thread diameter provides standardized compatibility across industrial applications.
