Value Collection R52001021 No.12 Self Drilling Screw 4in

Product Description

The VALUE COLLECTION R52001021 is a No. 12 self-drilling screw designed for metal-to-metal and metal-to-substrate fastening applications across HVAC, electrical, and general trade work. The screw features a hex washer head with a hex drive and a No. 3 drill point that cuts its own pilot hole, eliminating the need for pre-drilling in many light-gauge steel installations. Manufactured from grade 1016/1024 steel with a zinc-plated finish, it delivers reliable corrosion resistance in standard indoor applications. The length under head measures 4 inches. Weight is 0.8 pounds per package.

This screw is commonly used in light commercial and residential trade applications including HVAC ductwork assembly, electrical enclosure mounting, metal framing, and sheet metal fabrication. The hex washer head provides a broad bearing surface that resists pull-through, and the hex drive accepts standard 5/16-inch hex-head driver bits used throughout the trades. The No. 3 drill point is rated for moderate-gauge steel typical of HVAC and light structural work. Minimum order quantity is 25 pieces.

Key Features

• No. 3 drill point self-starts in light- to moderate-gauge steel without pre-drilling
• Hex washer head provides wide bearing surface and pull-through resistance
• Hex drive accepts standard 5/16-inch power driver bits
• Grade 1016/1024 steel construction for consistent shear and tensile strength
• Zinc-plated finish for corrosion resistance in standard indoor environments
• Meets AISI 1016, ASME B18.6.3, and SAE J78 standards

Compatibility

Designed as a standard No. 12 hex washer head self-drilling screw suitable for light-gauge steel sheet metal fastening typical of HVAC duct systems, metal framing, and electrical enclosure assembly.

Installation Notes

Installation is performed with a power drill or impact driver fitted with a 5/16-inch hex bit. Ensure the workpiece is securely clamped or supported before driving to prevent movement that can break the drill point. Do not overdrive — stop once the washer head seats flush against the substrate. Follow applicable SMACNA, NEC, or project specifications for fastener spacing and material gauge ratings.