S-92505A731 1/2"-13 x 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 for extended service life in harsh industrial environments
- Exceptional holding power achieved through Rockwell C45 hardness and Class 3A thread fit precision
- Simplified installation and removal with 1/4" hex drive design requiring minimal clearance
- Enhanced grip and positioning through extended tip design with controlled diameter tolerances
- Reliable performance in high-vibration applications with coarse UNC threads and right-hand threading
- Reduced component damage with headless design that sits flush against mounted components
- Industry-standard compatibility meeting ASME B18.3 specifications for consistent quality and interchangeability
Professional Applications & Engineering Value
This black oxide alloy steel set screw delivers critical engineering advantages in demanding mechanical assemblies. The extended tip design with precise diameter control (0.343" ±0.009") ensures maximum surface contact for superior torque transmission and resistance to loosening under vibration. The Class 3A thread fit provides tighter tolerances than standard fasteners, eliminating play in precision machinery, automotive components, and industrial equipment. The headless configuration allows for flush mounting in space-constrained applications while the coarse UNC threads enable rapid installation in production environments. Combined with Rockwell C45 hardness, this set screw maintains its clamping force under heavy static and dynamic loads, making it ideal for permanent positioning of gears, pulleys, and collars on shafts.
Specification Summary & Compliance
This set screw features 1/2"-13 UNC coarse threads with Class 3A fit for precision engagement, measuring 2" in length with 0.13" extended tip. Manufactured to ASME B18.3 specifications (ASTM F912) with complete compliance to RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations. The black oxide alloy steel construction provides consistent performance while meeting industrial standards for quality and safety.
