Value Collection 1512MSF Flat Head Machine Screw 1/4-28

Product Description

The VALUE COLLECTION 1512MSF is a flat head slotted machine screw designed for general-purpose fastening in metal, plastic, and composite assemblies. The screw features a 1/4-28 unified fine thread (UNF) and an overall length of 0.75 inches, with the full length measured under the head. Manufactured from steel with a zinc finish, it meets ASME B18.6.3 and SAE J82 standards, providing corrosion resistance suitable for interior mechanical and structural applications. This fastener is installed by licensed mechanics, millwrights, HVAC technicians, electricians, and plumbers wherever a low-profile countersunk head is required.

This machine screw is well-suited for equipment panels, junction boxes, control enclosures, motor housings, and similar assemblies requiring a flush-mount fastening solution. The fine 1/4-28 thread pitch provides higher thread engagement per unit length compared to coarse-thread variants, making it a preferred choice where vibration resistance or precise torque control is important. It is sold individually but requires a minimum order quantity of 100 pieces, making it appropriate for shop stock, service vans, or production line use.

Key Features

• 1/4-28 unified fine thread for increased thread engagement and vibration resistance
• Flat head profile allows flush or countersunk installation in mating material
• Slotted drive compatible with standard flat-blade screwdrivers
• Steel construction with zinc finish for corrosion resistance in interior environments
• Meets ASME B18.6.3 and SAE J82 fastener standards
• Minimum order quantity of 100 units suits bulk shop or field stock replenishment

Compatibility

Designed as a standard 1/4-28 UNF flat head machine screw for use in any tapped or pre-threaded application requiring ASME B18.6.3 or SAE J82 dimensional compliance.

Installation Notes

Installation is performed by qualified tradespeople using a flat-blade screwdriver or appropriate power driver bit. De-energize all electrical equipment and relieve system pressure before disassembling panels or enclosures. Ensure the mating hole is properly countersunk or drilled for a 1/4-28 flat head fastener to achieve a flush seating surface. Do not overtorque; follow equipment manufacturer torque specifications for the specific application.