S-92505A755 1/2"-20 x 3/4" 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
- Superior corrosion resistance with black oxide coating for extended service life in demanding environments
- Precise component positioning through extended tip design that provides superior contact and prevents slippage
- Exceptional thread engagement with Class 3A UNF fine threads ensuring vibration-resistant, secure fastening
- High-strength performance from alloy steel construction with Rockwell C45 hardness for heavy-duty applications
- Easy installation and removal with 1/4" hex drive that accommodates standard tools in confined spaces
- Reliable regulatory compliance meeting ASME B18.3 specifications while being RoHS 3 and REACH compliant
- Space-saving design as a headless set screw that fits flush against components without protruding hardware
Professional Applications & Engineering Value
This black oxide alloy steel set screw delivers critical engineering solutions for industrial assembly challenges. The extended tip design (0.13" length) creates concentrated contact pressure that prevents rotational slippage in pulleys, gears, and collars, while the Class 3A UNF fine threads maintain secure positioning under vibration and dynamic loads. The headless configuration with 1/4" hex drive enables installation in space-constrained applications where traditional fasteners cannot fit. With Rockwell C45 hardness and corrosion-resistant black oxide finish, this set screw withstands harsh operating conditions in machinery, automotive, and manufacturing equipment, ensuring long-term reliability and reduced maintenance requirements.
Specification Summary & Compliance
This precision fastener features 1/2"-20 UNF Class 3A threads with extended tip dimensions (0.13" length, 0.343" diameter) manufactured to exacting tolerances. The set screw conforms to ASME B18.3 specifications (ASTM F912) and demonstrates compliance with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring both mechanical performance and regulatory adherence for global industrial applications.
