S-91375A917 1"-12 x 1" 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 corrosion resistance with black-oxide coating for extended service life in harsh industrial environments
- Maximum thread engagement and vibration resistance through Class 3A fit UNF fine threads ensuring secure, permanent fastening
- High-strength performance with Rockwell C45 hardness alloy steel construction for heavy-duty applications
- Secure, flush mounting via headless design with 9/16" hex drive for tight spaces and clean installations
- Enhanced gripping power from cup tip design that bites into materials without slipping
- Precision manufacturing compliance with ASME B18.3 specifications for reliable dimensional accuracy
- Environmental regulation compliance meeting RoHS 3 and REACH standards for safe global usage
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for industrial machinery, automotive components, and precision equipment assembly. The 1"-12 UNF fine threads with Class 3A fit provide exceptional resistance to vibrational loosening, while the cup tip design creates permanent seating in shafts, collars, and gears. Manufactured from Rockwell C45 hardness alloy steel, it withstands high torque applications without stripping or deformation. The headless configuration with 9/16" hex drive enables installation in confined spaces where protruding fasteners are impractical, making it ideal for precision alignment and permanent positioning tasks across manufacturing and maintenance operations.
Specification Summary & Compliance
This set screw maintains Class 3A thread fit tolerances per UNF standards with 1"-12 fine threads and right-hand thread direction. Manufacturing complies with ASME B18.3 specifications (ASTM F912) ensuring dimensional precision. The product is fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, confirming its suitability for international industrial markets.
