Vichok Hardware
Regular price
$3.16 USD
Regular price
$3.16 USD
Sale price
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10 #-32 * 3/16 (100 pieces)Variant sold out or unavailable
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10 #-32 * 1-1/2 (20 pieces)Variant sold out or unavailable
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10 #-32 * 2 (20 pieces)Variant sold out or unavailable
10 #-32 * 2-1/2 (50) half teethVariant sold out or unavailable
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7/16-20 * 1 (5 pieces)Variant sold out or unavailable
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5/8-18 * 1 (2 pieces)Variant sold out or unavailable
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5/8-18 * 3-1/2 (5) half teethVariant sold out or unavailable
5/8-18 * 4 (1) half teethVariant sold out or unavailable
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12.9 grade UNF American fine thread cylindrical (cup) head hex socket machine screws are high-performance imperial fasteners, engineered for precision and heavy-load applications in industrial and mechanical fields. Adopting UNF (Unified National Fine) thread standard—ideal for tight spaces and vibration resistance—these screws cover the imperial size range 10# to 1/2, making them perfect for American-standard machinery, automotive components, precision tools, and high-strength equipment assemblies.
Crafted from heat-treated high-grade alloy steel, the 12.9 grade rating delivers exceptional tensile strength, wear resistance, and load-bearing capacity, exceeding standard fasteners for demanding environments. The cylindrical (cup) head ensures a sleek, low-profile finish, while the internal hex socket drive enables secure torque control and slip-proof installation with standard imperial tools. The UNF fine thread design enhances clamping force and stability, suitable for applications requiring precise fastening and anti-loosening performance.
Core Features & Advantages
12.9 grade heat-treated alloy steel for superior high-strength and heavy-load performance
UNF American fine thread for enhanced clamping force and vibration resistance
Cylindrical (cup) head with internal hex socket drive for secure torque control and easy installation
Imperial size range 10#-1/2, compatible with American-standard equipment
Precision-engineered for tight tolerances and reliable performance in industrial settings
Key Specifications
Material: Heat-Treated High-Grade Alloy Steel
Strength Grade: 12.9 Grade (High-Strength)
Thread Standard: UNF (Unified National Fine, American Standard)
Head Type: Cylindrical Head / Cup Head
Drive Type: Internal Hex Socket Drive
Size Range: 10# - 1/2 (Imperial)
Applications: American-Standard Machinery, Automotive Components, Precision Tools, High-Strength Equipment Assemblies
Performance: High Tensile Strength, Wear-Resistant, Anti-Loosening, Vibration-Resistant
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