S-94495A221 8-32 x 1/4" 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
- Vibration-resistant locking with Nylon Patch thread locker maintains secure fastening in dynamic environments from -70° to 250° F
- Exceptional durability from Black-Oxide Alloy Steel construction providing corrosion resistance and extended service life
- Precise thread engagement with UNC Class 3A coarse threads ensuring reliable installation and superior holding power
- High-strength performance backed by Rockwell C45 hardness for demanding industrial applications
- Space-saving headless design allowing flush mounting where protruding fasteners aren't feasible
- Easy installation and removal with standardized 5/64" hex drive compatible with common tools
- Right-hand thread direction providing familiar installation for standard assembly procedures
Professional Applications & Engineering Value
This 8-32 x 1/4" Black-Oxide Alloy Steel set screw delivers critical vibration resistance in industrial machinery, automotive components, and precision equipment where loosening under stress causes operational failures. The Nylon Patch thread locker embedded in the UNC coarse threads creates permanent friction that prevents back-off without compromising disassembly capability. Engineered with Class 3A thread fit for precise tolerance matching, this headless set screw solves alignment challenges in confined spaces while the black-oxide surface treatment resists corrosion in harsh environments. The combination of Rockwell C45 hardness and alloy steel construction ensures reliable performance in high-stress applications where fastener integrity is non-negotiable.
Specification Summary & Compliance
This set screw features 8-32 UNC Class 3A coarse threads with precise 0.164" thread diameter and 1/4" length, manufactured to exacting ASME B18.3 standards ASTM F912. The product is fully RoHS 3 (2015/863/EU) Compliant and REACH (EC 1907/2006) Compliant (01/17/2023 233 SVHC), meeting international environmental and safety regulations for industrial use.
