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Vichok Hardware
8 # UNC 10# 1/4 UNF Grade 12.9 Imperial Set Screw Fine Thread Cylindrical/Spherical End
8 # UNC 10# 1/4 UNF Grade 12.9 Imperial Set Screw Fine Thread Cylindrical/Spherical End
Regular price
$5.92 USD
Regular price
$5.92 USD
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$5.92 USD
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Grade 12.9 high-strength headless set screws are engineered for precision industrial applications, featuring imperial UNC/UNF fine threads and dual end options (cylindrical and spherical/convex). Available in key sizes 8#, 10#, and 1/4, these screws deliver exceptional tensile strength (≥1200MPa) and torque resistance, making them ideal for securing machine components, shafts, and precision parts that demand tight, vibration-resistant fastening.
Crafted from heat-treated alloy steel, the 12.9-grade construction ensures superior durability and wear resistance, suitable for heavy-duty machinery and high-stress assemblies. The UNC/UNF fine thread design provides tight, stable engagement with imperial components, while the headless structure allows for a low-profile, flush installation that avoids interference with rotating or moving parts. The cylindrical and spherical ends offer versatile contact options—cylindrical for precise positioning, spherical for enhanced load distribution and adaptability to uneven surfaces.
Core Features & Advantages
- 12.9 Grade Ultra-High Strength: Heat-treated alloy steel delivers exceptional tensile strength and torque resistance, ideal for heavy-duty industrial fastening.
- UNC/UNF Fine Threads: Imperial fine threads ensure tight engagement, vibration resistance, and compatibility with standard US/imperial components.
- Dual End Options: Cylindrical end for precise positioning; spherical/convex end for flexible load distribution and uneven surface adaptation.
- Headless Low-Profile Design: Enables flush installation, preventing interference with rotating machinery and moving parts.
- Versatile Imperial Sizes: Available in 8#, 10#, and 1/4 to fit diverse industrial component specifications.
Specifications
- Material: Heat-Treated Alloy Steel
- Strength Grade: Grade 12.9 (Tensile Strength ≥1200MPa)
- Thread Type: UNC (American Coarse Thread), UNF (American Fine Thread) – Fine Thread Focus
- Sizes: 8#, 10#, 1/4 (Imperial)
- End Type: Cylindrical End, Spherical/Convex End
- Head Type: Headless (Set Screw)
- Application: Machinery Components, Shafts, Precision Parts, Heavy-Duty Industrial Assemblies
- Finish: Natural Alloy Steel (Industrial-Grade Wear & Corrosion Resistance)
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