Value Collection 581738BR Hex Socket Cap Screw 3/4-16 Unf

Product Description

The VALUE COLLECTION 581738BR is a hex socket cap screw designed for high-strength bolted connections in mechanical, structural, and industrial assembly applications. It features a 3/4-16 UNF thread and a 4-inch length under head, with partial threading to suit applications requiring an unthreaded grip section. The 5/8-inch hex drive accepts a standard hex key or socket driver. Manufactured from alloy steel with a black oxide coating, this fastener meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for demanding load-bearing and close-tolerance installations.

This screw is suited for machinery assembly, tooling fixtures, hydraulic components, and general industrial fastening where a low-profile cap head and precise thread engagement are required. The 3/4-16 UNF fine-thread pitch provides superior holding strength and resistance to loosening under vibration compared to coarse-thread equivalents. It is commonly installed by machinists, millwrights, pipefitters, and maintenance technicians in commercial and industrial settings.

Key Features

• 3/4-16 UNF fine thread for high clamp load and vibration resistance
• 4-inch length under head with partial threading for unthreaded grip section
• 5/8-inch hex socket drive compatible with standard hex keys and socket drivers
• Alloy steel construction meets ASTM A574 for high tensile strength
• Black oxide coating provides mild corrosion resistance and reduces glare
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as an OEM-style replacement or direct-fit fastener for 3/4-16 UNF threaded holes requiring a hex socket cap screw per ASME/ANSI B18.3 and ASTM A574 specifications.

Installation Notes

Installation is performed by machinists or qualified maintenance technicians using a calibrated torque wrench with a 5/8-inch hex bit to achieve proper clamp load without overloading the thread. Always verify the mating thread condition and clean the hole before installation. Do not install into a hole with a damaged or mismatched thread class. De-energize and lock out all equipment per applicable safety procedures before servicing any assembly containing this fastener.