S-91375A457 3/4"-10 x 2 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 corrosion resistance with black-oxide coating, extending service life in demanding industrial environments
- Exceptional holding power from Rockwell C45 hardness and alloy steel construction for heavy-duty applications
- Precise Class 3A thread fit ensures secure, vibration-resistant fastening in critical assemblies
- Easy installation and removal with 3/8" hex drive design, compatible with standard tools
- Effective component positioning through cup tip design that minimizes surface damage during clamping
- Reliable coarse threading (3/4"-10 UNC) provides faster installation and better performance in softer materials
- Comprehensive regulatory compliance meeting ASME, ASTM, RoHS 3, and REACH standards for global acceptance
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional performance in demanding industrial settings where vibration resistance and permanent positioning are critical. The Class 3A thread fit provides superior dimensional accuracy, eliminating play in precision assemblies while the coarse UNC threading ensures rapid installation in machinery, automotive components, and heavy equipment. The cup tip design concentrates clamping force effectively without damaging shaft surfaces, making it ideal for securing gears, pulleys, and collars. With Rockwell C45 hardness, this fastener maintains its integrity under extreme mechanical stress, while the black-oxide surface treatment provides reliable corrosion protection in environments exposed to moisture and chemicals.
Specification Summary & Compliance
This 3/4"-10 UNC set screw features precise Class 3A thread fit tolerances with 2 3/4" length and 3/8" hex drive. Manufactured to ASME B18.3 specifications and ASTM F912 material standards, ensuring consistent quality and performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for safe use across global markets.
