Value Collection MSC-74125428 No.12 Self Drilling Screw

Product Description

The VALUE COLLECTION MSC-74125428 is a No. 12 self-drilling screw with a hex washer head and hex drive, designed for fastening into metal substrates without a pre-drilled pilot hole. The No. 3 drill point bores and taps in a single pass, reducing installation steps. Constructed from Grade 410 stainless steel, this screw resists corrosion in moderate-exposure environments. The 3/4-inch length under head suits light-gauge metal-to-metal and metal-to-structural applications common in HVAC duct work, electrical enclosure assembly, and light commercial framing. Electricians, sheet metal workers, and HVAC technicians are the primary installers.

This screw is suited for light-gauge metal fastening applications in residential and commercial construction and mechanical systems. Typical uses include securing HVAC sheet metal ductwork, electrical panels, junction boxes, and equipment access covers. The hex washer head provides a broad bearing surface to distribute clamping load across the fastened material, and the hex drive allows use with standard nut drivers or hex-bit impact drivers common in field service kits.

Key Features

• No. 3 drill point self-drills and taps in a single operation — no pilot hole required
• Grade 410 stainless steel construction for corrosion resistance in moderate-exposure environments
• Hex washer head delivers broad bearing surface and a positive drive engagement
• Hex drive compatible with standard nut drivers and hex-bit drivers
• 3/4-inch length under head suits light-gauge metal-to-metal fastening
• Sold in multiples of 100 to support job-site and shop stocking quantities

Compatibility

Designed as a standard No. 12 self-drilling screw for light-gauge metal fastening applications in HVAC, electrical, and general sheet metal work.

Installation Notes

Installation requires a hex-bit driver or nut driver matched to the hex head size. Apply consistent axial pressure to keep the drill point engaged during initial penetration — backing off too early can cause the point to walk. Confirm substrate gauge is within the rated range for a No. 3 drill point before driving. Follow applicable NEC or SMACNA guidelines when fastening electrical enclosures or ductwork assemblies.