Value Collection 721400BR Flat Socket Cap Screw 3/4-16

Product Description

The VALUE COLLECTION 721400BR is a flat socket cap screw designed for applications requiring a flush or countersunk fastener profile. With a 3/4-16 UNF thread and an overall length of 2 inches, this screw is fully threaded and features an 82-degree flat head driven by a 1/2-inch hex socket. It is manufactured from alloy steel with a black oxide finish, providing moderate corrosion resistance and a clean, low-profile seating surface. This fastener is a standard choice for mechanical assemblies, tooling, fixtures, and machinery where a recessed head is required to maintain a smooth surface or clear adjacent components.

This screw is suited for industrial, manufacturing, and trade applications where fine-thread UNF fasteners are specified. The 3/4-16 thread pitch is commonly used in high-vibration or high-strength assemblies where fine threads provide greater clamping force and better resistance to loosening. Machinists, millwrights, and maintenance technicians typically install this fastener in steel or iron fixtures, machine frames, and precision assemblies. Its fully threaded shank maximizes thread engagement across the full length of the fastener.

Key Features

• 82-degree flat head profile allows flush or countersunk installation
• 1/2-inch hex socket drive for use with standard hex keys or socket drivers
• 3/4-16 UNF fully threaded shank for maximum thread engagement
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM F835 standards
• Black oxide finish provides a uniform appearance and mild surface protection
• Overall length measured end-to-end at 2 inches

Compatibility

Designed as a standard UNF flat socket cap screw per ASME/ANSI B18.3 and ASTM F835, compatible with 3/4-16 threaded holes in steel, iron, and similar structural materials requiring a countersunk head fastener.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a calibrated hex key or socket driver sized to the 1/2-inch drive. Ensure the mating countersink is machined to an 82-degree included angle for proper head seating. Torque to the fastener manufacturer or assembly specification for the material and application. Inspect threads and mating hole for damage or contamination before installation.