Value Collection MP33838 Self Drilling Screw No. 12

Product Description

The VALUE COLLECTION MP33838 is a No. 12 self-drilling screw with a hex washer head and hex drive, designed for fast, reliable fastening without a pre-drilled pilot hole. The No. 3 drill point bores through light-gauge steel and similar substrates in a single operation. Built from steel with a zinc-plated finish for corrosion resistance, this screw measures 3/4 inches in length under the head. It is a standard inch-measurement fastener suited for metalwork, light fabrication, HVAC ductwork, and general trade assembly applications.

This screw is used in applications where speed and repeatability matter. The hex washer head provides a built-in bearing surface that distributes clamping load, while the hex drive allows use with standard nut drivers and hex-bit power tools. Typical install scenarios include securing sheet metal panels, attaching HVAC duct components, light structural bracketing, and general mechanical assembly where a self-tapping, self-drilling fastener is specified. Sold with a minimum order quantity of 25 pieces per order.

Key Features

• No. 3 drill point self-drills through light-gauge steel without a pilot hole
• Hex washer head provides integrated bearing surface for consistent clamping
• Hex drive is compatible with standard nut drivers and hex-bit power tools
• Zinc-plated steel construction offers basic corrosion resistance for general indoor use
• 3/4 inch length under head suits thin-material fastening tasks
• Inch-standard sizing for straightforward replacement and cross-referencing

Compatibility

Designed as a general-purpose No. 12 self-drilling fastener for use in light-gauge steel, sheet metal, and similar thin-material applications common in HVAC, electrical, and mechanical trade work.

Installation Notes

Installation is typically performed by HVAC technicians, sheet metal workers, electricians, or general mechanical trades using a hex-bit driver or nut driver at appropriate speed for the substrate. Ensure the workpiece is secured before driving to prevent material walking. Do not overdrive — the hex washer head seat indicates proper torque has been reached. Follow applicable codes and manufacturer guidelines for fastener spacing and edge distance in structural or load-bearing assemblies.