S-91375A279 9/16"-12 x 5/8" 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, extending service life in harsh industrial environments
- Exceptional thread engagement with Class 3A precision fit for secure, vibration-resistant fastening
- High-strength performance from alloy steel construction with Rockwell C45 hardness rating
- Easy installation and removal with 1/4" hex drive design requiring minimal clearance
- Reliable positioning capability through cup tip design that creates positive seating on shafts and components
- Optimized for heavy-duty applications with coarse UNC threads providing rapid assembly and disassembly
- Comprehensive regulatory compliance meeting both industry standards and environmental regulations
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional engineering value in demanding industrial applications where vibration resistance and corrosion protection are critical. The 9/16"-12 UNC coarse thread with Class 3A thread fit ensures precise engagement and maintains clamping force under dynamic loads, making it ideal for machinery, automotive components, and power transmission systems. The headless design with hex drive allows installation in confined spaces while the cup tip provides superior biting action on shafts and rotating elements. Manufactured to ASME B18.3 specifications, this set screw solves common industrial challenges of component slippage, corrosion-induced failure, and maintenance accessibility in heavy-duty equipment.
Specification Summary & Compliance
This set screw features precise Class 3A thread fit with 9/16"-12 UNC coarse threads and right-hand thread direction. The product meets ASME B18.3 manufacturing specifications and demonstrates full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. With dimensions of 5/8" length and 0.563" thread diameter, the screw maintains strict dimensional tolerances and material properties including Rockwell C45 hardness for consistent performance in industrial applications.
