Value Collection 581012BR Hex Socket Cap Screw 1-3/4-5 Unc

Product Description

The VALUE COLLECTION 581012BR is a heavy-duty hex socket cap screw designed for high-strength fastening applications in industrial, mechanical, and structural assemblies. It features a 1-3/4-5 UNC thread size with a 3-1/2 inch length under head and is fully threaded for maximum thread engagement. The 1-1/4 inch hex drive socket allows installation with a standard hex key or Allen driver. Constructed from alloy steel with a black oxide finish coating, this screw resists corrosion in moderate environments while maintaining high tensile strength. It meets ASME/ANSI B18.3 and ASTM A574 fastener standards, making it suitable for demanding load-bearing applications.

This screw is suited for use in heavy machinery, industrial equipment, tooling fixtures, and fabricated structural components where high clamping force is required. The UNC thread form is widely used in general industrial applications across North American manufacturing environments. The fully threaded shank provides consistent engagement throughout the full length, which is particularly useful in through-hole and tapped-hole configurations requiring tight joint integrity.

Key Features

• 1-3/4-5 UNC thread size for high-load fastening applications
• 3-1/2 inch length under head with full thread engagement
• 1-1/4 inch hex socket drive compatible with standard hex keys
• Alloy steel construction for high tensile and shear strength
• Black oxide finish coating for moderate corrosion resistance
• Meets ASME/ANSI B18.3 and ASTM A574 fastener standards

Compatibility

Designed as a standard UNC hex socket cap screw for use in tapped holes or with compatible hex nuts in industrial and mechanical assemblies requiring 1-3/4-5 thread engagement.

Installation Notes

Installation is typically performed by a machinist, millwright, or mechanical technician using a calibrated hex key or socket driver of the correct 1-1/4 inch drive size. Ensure the mating tapped hole or nut is clean and free of debris before installation. Follow applicable torque specifications from the equipment manufacturer or relevant ASME standards for the fastener grade. Do not use impact tools without proper adapters rated for the fastener size.