

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The HILLMAN FASTENERS 41548 is a self drilling screw designed for fast, reliable fastening in metal-to-metal and light-gauge metal applications. The hex washer head provides a broad bearing surface and positive drive engagement with a standard hex driver or nut runner. Constructed from hardened steel with a zinc finish, this screw drills its own pilot hole and taps its own thread in a single pass. Sold in a 50-pack, the 41548 suits high-volume service work, panel installations, and equipment assembly where consistent performance and corrosion resistance are required.
Self drilling screws of this type are commonly used by HVAC technicians, sheet metal workers, electricians, and general contractors. The 10-16 thread pitch and 1/2 inch length make this screw well suited for securing sheet metal panels, junction box covers, ductwork, and light structural components. The zinc coating provides basic corrosion resistance suitable for interior and sheltered exterior applications.
Designed as a general-purpose self drilling fastener suitable for light-gauge sheet metal, HVAC ductwork panels, electrical enclosures, and similar metal assembly applications.
Self drilling screws are installed by HVAC technicians, electricians, and sheet metal workers using a hex driver bit and a standard power drill or impact driver. Set the driver to a controlled torque setting to avoid stripping the hex washer head or overdriving into thin material. Ensure the base material gauge is appropriate for the drill point rating of the screw before installation. Wear appropriate eye protection when driving self drilling fasteners into metal.
Thanks for subscribing!
This email has been registered!