Hillman Fasteners 41502 No.6-20 X 0.5 in Self Drilling Screw 100pk

Product Description

The HILLMAN FASTENERS 41502 is a self-drilling screw designed to penetrate and tap its own hole in light-gauge metal and similar substrates without a pre-drilled pilot hole. Sized at No. 6-20 x 0.5 inches, it features a pan head profile and a Phillips drive for standard screwdriver or drill-driver use. Constructed from hardened steel with a zinc finish, the 41502 resists corrosion in typical indoor and light-duty outdoor applications. These screws are sold in a 100-count pack, making them practical for high-volume sheet metal assembly, HVAC ductwork fabrication, electrical enclosure work, and general trade use.

Self-drilling screws of this size are commonly used in residential and light commercial trade work where thin sheet metal, metal studs, or light structural panels must be fastened quickly and reliably. HVAC technicians use pan-head self-drillers when assembling or securing sheet metal duct sections, equipment panels, and access doors. Electricians and general contractors also reach for this fastener size during metal-framing and panel enclosure installations. The zinc finish provides a baseline level of corrosion resistance suited to conditioned interior environments.

Key Features

• Self-drilling point eliminates the need for a separate pilot hole in light-gauge metal
• No. 6-20 thread size and 0.5 inch length suited for thin sheet metal and panel applications
• Pan head profile distributes clamping load and sits flush against flat surfaces
• Phillips drive compatible with standard bit tips and power drivers
• Hardened steel construction for consistent drive-in and thread formation
• Zinc finish provides corrosion resistance in typical interior trade environments

Compatibility

Designed as a standard No. 6-20 self-drilling pan-head screw for use in light-gauge sheet metal, metal stud framing, HVAC ductwork panels, and electrical enclosure assemblies where a self-tapping fastener of this size is specified.

Installation Notes

Installation is performed with a Phillips-tip power driver or hand screwdriver set to an appropriate torque clutch setting to avoid overdriving and stripping the material. Confirm the substrate gauge is within the rated capacity for a No. 6 self-drilling point before driving. Follow applicable codes such as the SMACNA standards for duct fastener spacing in HVAC applications. Wear appropriate eye protection when driving self-drilling fasteners into metal.