Value Collection 581724BR Hex Socket Cap Screw 3/4-16 Unf

Product Description

The VALUE COLLECTION 581724BR is a fully threaded hex socket cap screw designed for high-strength fastening in precision mechanical assemblies. It features a 3/4-16 UNF thread profile — a fine-thread specification that provides increased tensile strength and superior resistance to loosening under vibration compared to coarse-thread equivalents. The screw measures 2 inches under the head and accepts a 5/8-inch hex drive. Constructed from alloy steel with a black oxide finish, this fastener delivers solid corrosion resistance and consistent clamp load in demanding industrial, HVAC equipment, and mechanical service applications.

This cap screw is suited for use in residential and commercial equipment installations, machinery assembly, and structural fastening tasks requiring a fine-thread alloy fastener. The 3/4-16 UNF thread size is common in hydraulic fittings, motor mounts, compressor housings, and heavy mechanical assemblies where precise torque control and thread engagement are critical. It is typically installed by machinists, millwrights, HVAC technicians, and maintenance professionals working on mechanical equipment requiring reliable high-tension fastening.

Key Features

• 3/4-16 UNF fine-thread profile for high tensile strength and vibration resistance
• Fully threaded along the entire shank for maximum thread engagement
• 2-inch length under head suits standard mechanical assembly depths
• 5/8-inch hex socket drive compatible with standard hex keys and socket drivers
• Alloy steel construction meets ASME/ANSI B18.3 and ASTM A574 standards
• Black oxide coating provides moderate corrosion resistance and reduces light glare during service

Compatibility

Designed as a standard ASME/ANSI B18.3 and ASTM A574 compliant hex socket cap screw for mechanical assemblies requiring a 3/4-16 UNF fully threaded fastener with a 5/8-inch hex drive.

Installation Notes

Installation of this fastener should be performed by a qualified mechanic, millwright, or service technician using a calibrated torque wrench and the appropriate 5/8-inch hex key or socket driver. Always de-energize and lock out equipment before fastener service to prevent unintended movement. Do not exceed the rated torque for 3/4-16 UNF alloy steel fasteners as specified by applicable equipment service documentation. Black oxide finish is not a substitute for additional corrosion protection in wet or chemically exposed environments.