S-91375A834 3/4"-10 x 7/8" 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 that protects against rust in demanding industrial environments
- Exceptional holding power thanks to Class 3A thread fit precision that ensures tight, secure fastening in critical applications
- Enhanced durability from Rockwell C45 hardness rating that maintains performance under heavy loads and repeated use
- Easy installation and removal with 3/8" hex drive design that provides reliable torque transfer without stripping
- Positive component positioning through cup tip design that creates consistent pressure points and prevents slippage
- Reliable coarse threading with UNC 3/4"-10 specification that resists vibration loosening in machinery applications
- Regulatory compliance assurance meeting ASME B18.3 standards and environmental regulations including RoHS 3 and REACH
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers exceptional engineering value in industrial settings where vibration resistance and secure fastening are critical. The Class 3A thread fit provides precision tolerance that eliminates play in machinery components, while the UNC coarse thread design maintains grip under dynamic loads. The cup tip configuration creates concentrated pressure points that prevent rotational slippage in shafts, collars, and pulleys. With Rockwell C45 hardness, this headless fastener withstands repeated adjustment cycles without deformation, making it ideal for permanent positioning applications in manufacturing equipment, automotive assemblies, and heavy machinery where reliable set screw performance is non-negotiable.
Specification Summary & Compliance
This high-performance set screw features 3/4"-10 UNC coarse threads with Class 3A thread fit for precision applications. Manufactured to ASME B18.3 specifications (ASTM F912) with right-hand threading and 7/8" length. The product is fully RoHS 3 (2015/863/EU) compliant and REACH (EC 1907/2006) compliant, meeting current environmental regulations for industrial use across global markets.
