Value Collection 581720BR Hex Socket Cap Screw 3/4-16 Unf

Product Description

The VALUE COLLECTION 581720BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, fixtures, and structural connections. It features a 3/4-16 UNF thread size, a 1.5-inch length under head, and a 5/8-inch hex drive. The screw is fully threaded along its shank and manufactured from alloy steel with a black oxide finish, providing corrosion resistance and a uniform appearance. It meets ASME/ANSI B18.3 and ASTM A574 standards. Typically installed by machinists, millwrights, and maintenance technicians, this fastener is suited for tight-tolerance fine-thread applications where precise clamping force is required.

This screw is appropriate for use in industrial machinery, tooling plates, precision equipment mounts, and general mechanical assembly where a fine unified thread is specified. The 3/4-16 UNF thread pitch provides greater thread engagement and superior resistance to loosening compared to coarse-thread equivalents, making it a common choice in vibration-prone environments. A minimum order quantity of 10 units applies.

Key Features

• 3/4-16 UNF fine thread for superior clamping and vibration resistance
• 1.5-inch length under head for adequate thread engagement in typical applications
• 5/8-inch hex socket drive for use with standard Allen or hex key tooling
• Fully threaded shank for maximum thread engagement along the full length
• Alloy steel construction meets ASTM A574 for high tensile strength
• Black oxide finish provides moderate corrosion resistance and reduces light reflection

Compatibility

Designed as an OEM-style replacement or standard-specification fastener for any application requiring a 3/4-16 UNF hex socket cap screw conforming to ASME/ANSI B18.3 and ASTM A574.

Installation Notes

Installation is performed using a 5/8-inch hex key or Allen wrench; ensure the driver is fully seated in the socket before applying torque to avoid rounding. Power down or de-energize any machinery before servicing fastened assemblies. Follow applicable ASME or equipment manufacturer torque specifications for the joint material and thread engagement depth. Black oxide finish offers limited corrosion protection and may require additional lubrication or sealant in wet or outdoor environments.