S-91375A927 1"-14 x 1 1/2" 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 Class 3A thread fit ensuring tight, secure fastening in demanding applications
- Exceptional durability from Black-Oxide Alloy Steel construction providing reliable corrosion resistance
- High-strength performance backed by Rockwell C45 hardness for long-term reliability under heavy loads
- Precise installation control through 9/16" hex drive design allowing for accurate torque application
- Enhanced grip capability with cup tip configuration that digs into mating surfaces for superior anti-loosening
- Industry-standard compatibility with 1"-14 fine thread spacing meeting UNS specifications for broad application use
- Space-saving design as a headless set screw ideal for confined spaces and flush mounting requirements
Professional Applications & Engineering Value
This Black-Oxide Alloy Steel set screw delivers critical engineering solutions for industrial applications where vibration resistance and permanent positioning are paramount. The Class 3A thread fit provides exceptional dimensional accuracy, eliminating play and ensuring consistent clamping force in precision assemblies. The cup tip design creates permanent dimples in shaft surfaces, preventing rotational slippage in high-torque environments like power transmission systems and machinery alignment. With 1"-14 fine thread spacing, this fastener offers superior resistance to loosening compared to coarse threads, making it ideal for adjustable components, collars, and pulleys. The headless configuration allows flush installation in space-constrained applications while the Rockwell C45 hardness ensures the screw maintains its structural integrity under repeated stress cycles.
Specification Summary & Compliance
This set screw features precision 1"-14 UNS fine threads with Class 3A fit for exacting dimensional tolerances. Manufactured to ASME B18.3 specifications with Rockwell C45 hardness rating. The 1½" length with right-hand thread direction and 9/16" hex drive ensures consistent performance. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards for industrial use.
