Value Collection 581701BR Hex Socket Cap Screw 3/4-10 Unc

Product Description

The VALUE COLLECTION 581701BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, structural connections, and industrial equipment. The screw measures 10 inches in length under the head and features a 3/4-10 UNC thread with partial threading. Driven by a 5/8-inch hex socket, it is manufactured from alloy steel with a black oxide coating that provides moderate corrosion resistance and a consistent matte finish. This fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for demanding load-bearing applications.

This screw is suited for use in heavy equipment, machinery frames, jigs, fixtures, and general industrial fabrication where high-clamping-force socket head fasteners are specified. Partial threading is typical for this length, allowing thread engagement only at the mating surface while the unthreaded shank absorbs shear load. Maintenance technicians, millwrights, and fabricators commonly use this fastener when standard hex-head bolts are not suitable due to clearance constraints or torque requirements.

Key Features

• 3/4-10 UNC thread size for high-strength clamping applications
• 10-inch length under head with partial threading for combined tensile and shear load scenarios
• 5/8-inch hex socket drive for high-torque installation with standard socket tooling
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish provides mild corrosion resistance and reduces surface glare
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for use in any application specifying a 3/4-10 UNC partially threaded socket head cap screw with a 10-inch length under head.

Installation Notes

Installation should be performed by qualified mechanical technicians or millwrights using a calibrated torque wrench and a 5/8-inch hex socket or hex key. Always verify that the mating tapped hole meets the specified thread class before installation. Ensure the joint is free of debris and that the fastener is driven straight to avoid thread galling. Follow applicable industry standards and equipment manufacturer torque specifications when tightening.