S-91375A921 2-64 x 1/8" ASME B18.3, ASTM F912 Set Screws
Set Screws
Image may differ from product. See technical specification for details.
Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
- Fast delivery
- Enjoy discounts on bulk purchases
- Secure Payment
- Fast Global Shipping
Key Features & Benefits at a Glance
- Exceptional holding power with Class 3A thread fit for precise, vibration-resistant fastening in critical assemblies
- Superior corrosion resistance from Black-Oxide coating on Alloy Steel, extending service life in harsh industrial environments
- Optimized torque transmission via 0.035" hex drive, preventing tool slippage and ensuring consistent installation
- Enhanced material durability with Rockwell C45 hardness, maintaining thread integrity under repeated adjustments
- Secure component positioning through cup tip design, minimizing surface damage while providing reliable grip
- Fine thread engagement (2-64 UNF) for improved load distribution and reduced loosening in high-vibration applications
- Space-saving headless design enabling flush mounting where clearance is limited
Professional Applications & Engineering Value
Engineered for precision locking applications, this 2-64 UNF Class 3A set screw delivers reliable performance in demanding industrial settings. The Black-Oxide Alloy Steel construction provides superior corrosion protection while maintaining Rockwell C45 hardness for exceptional wear resistance. The fine thread configuration ensures maximum engagement in thin-walled components, preventing stripping in delicate assemblies. With its cup tip design, this headless fastener distributes clamping force evenly, making it ideal for securing collars, gears, and knobs on shafts without damaging precision surfaces. The right-hand thread with hex drive compatibility enables quick installation in confined spaces common in machinery, automotive, and aerospace applications where vibration resistance and positional accuracy are critical.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit for superior dimensional accuracy. Features UNF fine threads (2-64) with 0.086" thread diameter and 1/8" length. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across global markets. Meets ASTM F912 material standards for consistent performance in industrial fastener applications.
