Value Collection 015447BR Hex Socket Cap Screw 5/8-18 Unf

Product Description

The VALUE COLLECTION 015447BR is a hex socket cap screw designed for high-strength fastening applications in mechanical assemblies, tooling, and structural connections. The screw features a 5/8-18 UNF thread — a fine-pitch unified thread that provides greater tensile strength and torque resistance compared to coarse-thread equivalents. With a 2-inch length under head and full threading along that length, it delivers maximum thread engagement. The 1/2-inch hex drive accommodates standard hex keys and socket drivers used across industrial and trade environments. Alloy steel construction with a black oxide finish provides corrosion resistance in protected or lightly exposed environments.

This fastener is suited for machine tool work, fixture building, equipment fabrication, and maintenance applications where fine-thread engagement and a low-profile socket head are required. The fully threaded shank allows it to be used in through-hole and tapped-hole configurations without a grip-length limitation. Machinists, millwrights, and maintenance technicians commonly install this type of fastener when precise clamping force and clean head seating are priorities.

Key Features

• 5/8-18 UNF fine-pitch thread for higher thread engagement and pull-out resistance
• Fully threaded 2-inch length under head maximizes usable thread in tapped holes
• 1/2-inch hex socket drive compatible with standard Allen keys and socket tooling
• Alloy steel construction meets ASTM A574 and ASME/ANSI B18.3 fastener standards
• Black oxide finish provides mild corrosion protection and reduces light reflection
• Meets IFI 124 specifications for socket head cap screw dimensional and mechanical requirements

Compatibility

Designed as a standard socket head cap screw per ASME/ANSI B18.3 and ASTM A574 for use in any tapped or through-hole application accepting a 5/8-18 UNF thread pattern.

Installation Notes

Installation is performed by machinists, millwrights, or maintenance technicians using a 1/2-inch hex key or socket driver. Ensure the mating tapped hole is clean, properly threaded to 5/8-18 UNF, and free of debris before driving the fastener. Do not use an impact driver at full torque without a verified torque spec for the application. Black oxide is a mild finish — apply a compatible thread lubricant or anti-seize compound when operating in wet or corrosive environments.