S-95289A613 1/2"-13 x 1" 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 finish for extended service life in demanding environments
- Exceptional holding power achieved through extended tip design that digs deeper into mating surfaces
- Precise Class 3A thread fit ensures tight tolerances and reliable fastening in critical applications
- High-strength performance with Rockwell C45 hardness rating for maximum durability under load
- Easy installation and removal using standard 1/4" hex drive tools for efficient maintenance
- Reliable coarse threading (UNC 1/2"-13) provides excellent engagement and vibration resistance
- Headless design allows for flush mounting in space-constrained assemblies
Professional Applications & Engineering Value
This black oxide alloy steel set screw delivers exceptional engineering value in industrial applications where vibration resistance and permanent positioning are critical. The extended tip design creates deeper engagement with mating components, preventing slippage in high-torque environments like machinery shafts, gear assemblies, and rotating equipment. The Class 3A thread fit ensures precise engagement with minimal play, while the coarse UNC threading maintains holding power even under severe vibration conditions. The headless configuration makes it ideal for applications requiring flush mounting in collars, hubs, and pulleys where protruding fasteners would interfere with operation. The combination of Rockwell C45 hardness and corrosion-resistant black oxide finish ensures long-term reliability in demanding industrial settings.
Specification Summary & Compliance
This set screw features precision 1/2"-13 UNC coarse threads with Class 3A fit for superior dimensional accuracy. The extended tip maintains tight tolerances with tip length of 0.26" (-0.005" to 0" tolerance) and tip diameter of 0.343" (-0.009" to 0" tolerance). Manufactured to ASME B18.3 specifications (ASTM F912) and compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations for industrial use.
