Value Collection 31139 Machine Screw 10-24 Round Head

Product Description

The VALUE COLLECTION 31139 is a 10-24 UNC machine screw with a round head and slotted drive, manufactured from alloy steel with a zinc-plated finish. At 1.5 inches in length measured under the head, this screw is built for general-purpose fastening in mechanical assemblies, enclosures, and equipment panels. The zinc coating provides basic corrosion resistance in typical indoor service environments. Technicians across HVAC, electrical, and plumbing trades reach for this fastener when securing covers, brackets, and control components that require a standard inch-thread machine screw.

This screw is suited for light to medium-duty applications where a 10-24 unified coarse thread pattern is specified. Common uses include securing sheet metal panels, junction box covers, control board mounting brackets, and general equipment hardware in residential and light commercial settings. The round head profile seats flush against flat surfaces without requiring a countersink, and the slotted drive accepts a standard flat-blade screwdriver.

Key Features

• 10-24 UNC thread for broad compatibility with standard tapped holes and hex nuts
• Round head profile seats cleanly on flat surfaces without countersinking
• Slotted drive accepts standard flat-blade screwdrivers
• Alloy steel construction for reliable tensile strength in mechanical fastening applications
• Zinc-plated finish provides corrosion resistance in typical indoor environments
• No washer included; length measured under head at 1.5 inches

Compatibility

Designed as a general-purpose replacement or service fastener for any application requiring a 10-24 UNC round head slotted machine screw with a 1.5-inch length under head.

Installation Notes

Installation is performed by hand or with a flat-blade screwdriver into a pre-tapped 10-24 hole or with a matching nut and washer as required. Always power down or de-energize equipment before removing or replacing fasteners on electrical enclosures or control panels. Do not overtighten alloy steel screws into soft base materials such as aluminum or plastic to avoid thread damage. Follow applicable equipment manufacturer torque guidance where specified in service documentation.