Value Collection 721535BR Flat Socket Cap Screw 7/8-9 X 8 in

Product Description

The VALUE COLLECTION 721535BR is a flat socket cap screw designed for applications requiring a low-profile, flush-mount fastening solution. It features an 82-degree flat head driven by a 9/16-inch hex socket and is partially threaded along its 8-inch overall length with a 7/8-9 UNC thread form. Manufactured from alloy steel with a black oxide finish, this fastener delivers solid mechanical strength and moderate corrosion resistance in industrial and structural assemblies. It meets ASME/ANSI B18.3 and ASTM F835 standards, making it appropriate for precision mechanical and structural applications where compliance matters.

This flat socket cap screw is suited for use in machinery, tooling fixtures, fabricated steel assemblies, and structural connections where the fastener head must sit flush or below the mating surface. The partial threading allows the unthreaded shank to bear shear loads while the threaded portion engages the tapped hole. It is commonly used in manufacturing, maintenance, and general industrial environments by machinists, millwrights, and maintenance technicians working with inch-system hardware.

Key Features

• 82-degree flat head profile allows flush or countersunk installation
• 9/16-inch hex socket drive for secure torque application with standard Allen or hex key tooling
• 7/8-9 UNC thread form for broad compatibility with inch-system tapped holes
• Partial threading retains an unthreaded shank section for shear load resistance
• Alloy steel construction provides high tensile strength for demanding fastening applications
• Black oxide finish offers mild corrosion resistance and reduces light reflection in service

Compatibility

Designed as an OEM-style replacement or direct-use fastener for inch-system assemblies requiring a 7/8-9 UNC flat socket cap screw with an 8-inch overall length and partial threading per ASME/ANSI B18.3 and ASTM F835 standards.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a properly sized 9/16-inch hex key or socket driver. Ensure the mating hole is tapped to a 7/8-9 UNC thread and the countersink is machined to an 82-degree included angle to fully seat the flat head. Disengage power and de-energize or de-pressurize any machinery before servicing fasteners in live assemblies. Do not use impact tooling that exceeds the rated torque range for the fastener grade.