Value Collection 581728BR Hex Socket Cap Screw 3/4-16 Unf

Product Description

The VALUE COLLECTION 581728BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and structural components. The screw features a 3/4-16 UNF thread size with a 2-1/2-inch length under the head and a 5/8-inch hex drive socket. It is fully threaded, providing maximum thread engagement across the full shank length. Manufactured from alloy steel with a black oxide coating, this fastener meets ASME/ANSI B18.3 and ASTM A574 standards. It is installed by machinists, millwrights, and maintenance technicians in industrial environments.

This cap screw is suited for applications requiring precise thread engagement and high tensile strength, including fixture plates, hydraulic component mounting, machine frames, and jig assemblies. The fine 3/4-16 UNF thread pitch allows for tighter preload control compared to coarse-thread equivalents, making it appropriate for high-vibration environments and precision assemblies where controlled clamping force is critical.

Key Features

• 3/4-16 UNF fine-thread profile for precise torque and preload control
• 2-1/2-inch length under head with full threading along the entire shank
• 5/8-inch hex drive socket for standard Allen key or socket wrench installation
• Alloy steel construction rated to ASTM A574 for high tensile and proof-load strength
• Black oxide finish provides moderate 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 for use in any application requiring a 3/4-16 UNF fully threaded alloy steel fastener with a 5/8-inch hex drive.

Installation Notes

Installation should be performed by a qualified machinist or maintenance technician using a 5/8-inch hex key or socket driver. Verify that the mating tapped hole conforms to the 3/4-16 UNF thread specification before installation to prevent cross-threading or galling. Apply appropriate thread lubricant or anti-seize compound as required by the assembly specification. Torque to the value specified in your engineering documentation for ASTM A574 alloy steel fasteners at this diameter.