Value Collection 721294BR Flat Socket Cap Screw 3/4-10

Product Description

The VALUE COLLECTION 721294BR is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. It features an 82-degree flat head driven by a 1/2-inch hex socket and is partially threaded along its 4.5-inch overall length with a 3/4-10 UNC thread pattern. Constructed from alloy steel with a black oxide finish, this screw offers solid mechanical strength and moderate corrosion resistance in low-moisture environments. It is a standard inch-measurement fastener conforming to ASME/ANSI B18.3 and ASTM F835 dimensional and performance standards. Mechanical contractors, millwrights, and general tradespeople install this type of fastener where a low-profile, recessed head is required.

This flat socket cap screw suits structural and mechanical assembly applications where a countersunk seating surface is machined or pre-formed into the mating component. The 3/4-10 UNC thread size and 4.5-inch overall length make it appropriate for medium-to-heavy-duty bolted connections in machinery, fixtures, brackets, and fabricated assemblies. The partially threaded shank provides a smooth grip zone for precise joint clamping. The black oxide finish is commonly used in controlled indoor environments or where light oil lubrication will be applied post-installation.

Key Features

• 82-degree flat head seats flush in countersunk holes for a low-profile installation
• 1/2-inch hex socket drive for high torque input with standard Allen or hex key tooling
• 3/4-10 UNC thread form per ASME/ANSI B18.3 and ASTM F835 standards
• Partially threaded shank provides a smooth grip section for accurate joint clamping
• Alloy steel construction delivers high tensile and shear strength
• Black oxide finish provides a consistent appearance and mild corrosion resistance in dry service conditions

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM F835 flat socket cap screw in the 3/4-10 UNC thread size, compatible with any countersunk tapped hole or pre-drilled clearance hole machined to accept this thread and head geometry.

Installation Notes

Installation is performed by mechanical trades using a calibrated torque wrench and a 1/2-inch hex key or Allen socket. Verify that the mating countersink angle matches the 82-degree flat head geometry before driving the fastener. Apply a suitable thread lubricant or anti-seize compound as required by the joint specification to achieve accurate clamp load. Follow all applicable industry and site safety standards when working with structural fasteners.