Value Collection MP33846 Self Drilling Screw 1/4 in

Product Description

The VALUE COLLECTION MP33846 is a 1/4 inch self drilling screw designed for fast, reliable fastening without a pre-drilled pilot hole. Featuring a hex washer head with a hex drive, this screw provides strong torque transfer and a broad bearing surface that resists pull-through. The 3/4 inch length under head suits light-gauge metal-to-metal and metal-to-substrate applications common in HVAC duct work, electrical enclosures, and general sheet metal assembly. The 3 point drill tip bites quickly into the work surface, reducing installation time. Constructed from steel with a zinc-plated finish, it provides corrosion resistance suitable for dry indoor applications.

This screw is commonly used in residential and light commercial construction and service work. HVAC technicians reach for self drilling screws when securing sheet metal duct sections, attaching flanges, or fastening equipment panels. Electricians use them for mounting enclosures and raceways to metal framing. The hex washer head seats flush against the material surface, making it practical anywhere a clean, stable fastening point is needed on thin metal.

Key Features

• 1/4 inch diameter with 3/4 inch length under head for light-gauge sheet metal fastening
• Hex washer head provides a wide bearing surface and resists pull-through
• Hex drive for positive bit engagement and high torque transfer
• 3 point self drilling tip eliminates the need for a pilot hole
• Steel construction with zinc-plated finish for corrosion resistance in dry indoor environments

Compatibility

Designed as an OEM-style replacement and general-use fastener for light-gauge metal assemblies in HVAC, electrical, and sheet metal applications.

Installation Notes

Installation is performed with a hex driver bit and a variable-speed drill or impact driver set to a controlled torque to avoid stripping the head or over-driving into thin material. Verify material gauge compatibility with the 3 point drill tip before driving. Power down or de-energize any equipment before fastening near live electrical components. Follow applicable codes such as the NEC and SMACNA standards for fastener spacing in duct and enclosure assemblies.