Value Collection MP33840 No.12 Self Drilling Screw 1 in

Product Description

The VALUE COLLECTION MP33840 is a No. 12 self drilling screw designed for fast, reliable fastening without a pre-drilled pilot hole. It features a hex washer head driven by a standard hex drive and a No. 3 drill point that cuts through material cleanly on contact. The shank measures 1 inch in length under the head. Constructed from steel with a zinc-plated finish, this screw resists corrosion in typical indoor and light-duty applications. HVAC fabricators, sheet metal workers, and general trade professionals use this fastener for securing light-gauge metal panels, ductwork components, and similar assemblies.

This screw is suited for light-gauge steel-to-steel and steel-to-substrate applications common in HVAC duct fabrication, electrical enclosure assembly, and general sheet metal work. The hex washer head provides a bearing surface that distributes clamping load and helps prevent pull-through. The No. 3 drill point is rated for penetrating thin to medium steel stock without pre-drilling, making it a practical choice for production and field installation work alike. Sold in minimum order quantities of 25 units per order.

Key Features

• No. 12 screw size with 1-inch length under head for consistent thread engagement
• No. 3 drill point eliminates need for pre-drilled pilot holes in light-gauge steel
• Hex washer head style provides a wide bearing surface and resists pull-through
• Hex drive accepts standard nut drivers and impact drivers used in trade work
• Steel construction with zinc-plated finish for corrosion resistance in dry environments

Compatibility

Designed as a standard No. 12 self drilling fastener suitable for light-gauge steel-to-steel applications typical in HVAC ductwork, electrical enclosures, and sheet metal panel assembly.

Installation Notes

Installation is performed with a hex driver bit or nut driver sized to the hex washer head. Ensure material thickness is within the rated capacity of a No. 3 drill point before driving. Apply consistent, steady pressure to allow the drill point to engage before the threads begin to pull. Do not overdrive — the washer head can deform or strip thin gauge material if torque is not controlled.