Value Collection 307362BR Hex Socket Cap Screw 5/8-18 Unf

Product Description

The VALUE COLLECTION 307362BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and structural connections. It features a 5/8-18 UNF thread form — a fine-pitch unified thread that provides strong clamping force and resistance to vibration loosening. The screw measures 1-3/4 inches in length under the head and is driven with a 1/2-inch hex key. Constructed from alloy steel with a black oxide finish, this fastener is built to handle demanding load conditions while offering moderate corrosion resistance. It conforms to ASTM A574, the standard specification for alloy steel socket-head cap screws.

This screw is suited for precision machine work, hydraulic component assemblies, jig and fixture fabrication, and anywhere a recessed-drive, high-strength cap screw is specified. The fine 18-TPI thread pitch makes it a common choice when controlled torque and tight tolerances are required, such as in fluid power equipment, press tooling, and industrial maintenance applications. Installation is performed by machinists, millwrights, and maintenance technicians across manufacturing, industrial, and general mechanical trade environments.

Key Features

• 5/8-18 UNF fine-pitch thread for high clamping load and vibration resistance
• 1-3/4 inch length under head — fully threaded for maximum thread engagement
• 1/2-inch hex socket drive for use with standard hex keys or socket wrenches
• Alloy steel construction meets ASTM A574 specification for socket-head cap screws
• Black oxide finish provides mild corrosion protection and reduces light reflection

Compatibility

Designed as an OEM-style and general-purpose replacement or new-installation hex socket cap screw for applications requiring a 5/8-18 UNF fully threaded fastener conforming to ASTM A574.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using a calibrated torque wrench and the appropriate 1/2-inch hex key or socket driver. Always verify that the mating tapped hole thread form, class of fit, and material are compatible before assembly. Apply thread lubricant or thread-locking compound only as specified by the equipment manufacturer. Do not exceed the rated proof load for the fastener grade or the tapped hole material.