Value Collection MP72136 Hex Socket Cap Screw 5/16-18 Unc

Product Description

The VALUE COLLECTION MP72136 is a partially threaded hex socket cap screw designed for secure mechanical fastening in a wide range of industrial and trade applications. Sized at 5/16-18 UNC with a 2-inch length under the head, this screw is driven with a 1/4-inch hex key. It is manufactured from alloy steel and finished with a black oxide coating that provides moderate corrosion resistance and reduces light reflection. Licensed tradespeople, maintenance mechanics, and fabricators reach for this fastener when assembling machinery, structural brackets, or equipment frames that require a clean, low-profile socket-head fastener.

This screw is suited for use in mechanical assemblies, equipment fabrication, and general maintenance work in residential, commercial, and industrial settings. The 5/16-18 UNC thread form is one of the most common coarse-thread sizes in North American trade work, making this fastener a reliable choice for tapped-hole applications in steel, cast iron, and similar ferrous materials. It meets ASME B18.3 and ASTM A574 dimensional and mechanical standards. Each order ships in a pack of 25 pieces.

Key Features

• 5/16-18 UNC coarse thread for broad compatibility with standard tapped holes
• 2-inch length under head, partially threaded for strong clamping in through-hole and blind-hole assemblies
• 1/4-inch hex drive for use with standard hex keys or socket-drive bits
• Alloy steel construction meets ASTM A574 high-strength fastener requirements
• Black oxide finish provides mild corrosion resistance and a non-reflective appearance
• Meets ASME B18.3 dimensional standards for socket head cap screws

Compatibility

Designed as a standard ASME B18.3 hex socket cap screw suitable for tapped-hole applications in steel, cast iron, and other ferrous base materials where a 5/16-18 UNC coarse-thread fastener is specified.

Installation Notes

Installation is performed using a 1/4-inch hex key or a matching socket-drive bit. Verify that the receiving tapped hole meets 5/16-18 UNC thread specifications before installation. De-energize or lock out any equipment being serviced before fastening or removing hardware per applicable OSHA lockout/tagout procedures. Do not substitute lubricants or thread-locking compounds unless specified by the equipment manufacturer, as doing so may affect clamp load and torque values.