Value Collection 011199P Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION 011199P is a hex socket cap screw designed for secure fastening in mechanical assemblies, machine components, and structural connections. Sized at 5/16-18 UNC with a 3/4 inch length under the head, this fastener is fully threaded and driven with a 1/4 inch hex (Allen) key. The alloy steel construction with a black oxide finish provides corrosion resistance and strength suited for demanding industrial and maintenance applications. It meets ASME/ANSI B18.3 and ASTM A574 standards, making it appropriate for applications where dimensional and mechanical property compliance is required. Machinists, maintenance technicians, and industrial assemblers are the typical installers.

This screw is used across a wide range of applications including machinery assembly, equipment repair, tooling fixtures, and general industrial fastening. The 5/16-18 UNC thread is a standard coarse-thread size common in North American equipment. The black oxide finish provides mild corrosion protection and reduces light reflection, making it a common choice in both indoor mechanical environments and light-duty field service. It is sold individually but requires a minimum order quantity of 100 pieces.

Key Features

• 5/16-18 UNC coarse thread for reliable engagement in standard tapped holes
• 3/4 inch length under head — fully threaded for maximum thread engagement
• 1/4 inch hex drive — compatible with standard Allen keys and hex bit drivers
• Alloy steel construction meets ASTM A574 mechanical property requirements
• Black oxide finish for mild corrosion resistance and reduced surface reflectivity
• Conforms to ASME/ANSI B18.3 dimensional standards

Compatibility

Designed as a standard ASME/ANSI B18.3 hex socket cap screw suitable for any application requiring a 5/16-18 UNC fully threaded fastener with a 1/4 inch hex drive.

Installation Notes

Installation is performed with a 1/4 inch hex key or Allen bit driver. Ensure the mating tapped hole is clean and free of debris before installation. Do not overtighten — follow the torque requirements specified in the equipment service manual or applicable mechanical design standards for alloy steel socket cap screws. Black oxide finish provides only mild corrosion protection; use appropriate thread-locking compound or anti-seize as required by the application.