Value Collection MP33831 No.10 Self Drilling Screw 3/4in

Product Description

The VALUE COLLECTION MP33831 is a No. 10 self drilling screw designed for fast, clean fastening without a pre-drilled pilot hole. Fitted with a hex washer head and hex drive, it seats securely and resists cam-out under power tool torque. The 3/4-inch length under head suits thin-gauge metal-to-metal and metal-to-substrate applications common in HVAC ductwork, electrical enclosures, and light structural assemblies. The No. 3 drill point bites through mild steel sheeting efficiently. Constructed from steel with a zinc-plated finish, it provides baseline corrosion resistance for interior and semi-exposed installations.

This screw is a standard fastener for sheet metal work across HVAC, electrical, and general mechanical trades. The hex washer head distributes clamping load over a wider bearing surface, reducing the risk of pull-through in thin-gauge panels. The hex drive accepts standard 5/16-inch hex driver bits, which are common on impact drivers and drill-drivers used in the field. Typical applications include securing duct sections, mounting brackets, attaching access panels, and fastening electrical enclosure covers.

Key Features

• No. 3 drill point enables self-tapping entry into mild steel without a pilot hole
• Hex washer head spreads clamping load and resists pull-through on thin gauge material
• Hex drive accepts standard 5/16-inch hex bit for use with impact drivers and drill-drivers
• 3/4-inch length under head suits thin-gauge sheet metal and panel applications
• Steel construction with zinc-plated finish for baseline corrosion resistance in interior use

Compatibility

Designed as a general-purpose No. 10 self drilling screw for use in thin-gauge steel sheet metal assemblies typical of HVAC, electrical, and light mechanical installations.

Installation Notes

Installation is performed by HVAC technicians, sheet metal workers, and electricians using a power drill or impact driver fitted with a 5/16-inch hex bit. Confirm material thickness is appropriate for the No. 3 drill point before driving. Apply consistent axial pressure to keep the bit seated and prevent screw walking on smooth metal surfaces. Avoid over-driving, which can strip threads or deform the washer head bearing surface.