S-92765A356 1/4"-28 x 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 corrosion resistance with black-oxide coating, extending service life in harsh industrial environments
- Exceptional thread precision with Class 3A fit for reliable, vibration-resistant fastening in critical assemblies
- High-strength performance from Rockwell C45 hardened alloy steel, preventing stripping under heavy loads
- Space-saving headless design allows flush mounting where clearance is limited
- Secure hex drive engagement with 1/8" drive size for easy installation and high torque transmission
- Fine thread configuration (28 TPI) provides enhanced adjustment precision and better load distribution
- Oval tip design creates positive seating with minimal surface marring on shafts and components
Professional Applications & Engineering Value
This black-oxide alloy steel set screw delivers critical engineering solutions for precision machinery and industrial equipment. The Class 3A UNF fine threads maintain tight tolerances in high-vibration applications, preventing loosening in motors, gear assemblies, and precision instruments. The headless configuration with hex drive enables installation in confined spaces while providing substantial torque capability. The Rockwell C45 hardness ensures the screw maintains its structural integrity under repeated stress cycles, while the black-oxide surface treatment provides essential corrosion protection in manufacturing environments exposed to moisture and chemicals. These features combine to create a reliable fastening solution for OEM applications requiring dimensional stability and long-term performance.
Specification Summary & Compliance
Manufactured to ASME B18.3 specifications with Class 3A thread fit for precision applications. Features 1/4"-28 UNF fine threads with right-hand direction and 1/2" length. The oval tip provides positive contact while minimizing component damage. Full compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations ensures safe use across global markets.
