Roofing Screws | McMaster-Carr

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169 Products

About Tapping Screws

Steel Drilling Screws with Washer for Metal

These steel screws are available with corrosion resistant finishes. A rubber-bonded washer compresses to form a watertight seal. They save you time and effort by drilling their own holes and fastening in a single operation.

Steel Drilling Screws with Corrosion-Resistant
Head and Washer for Metal

These steel screws have a head encapsulated by 18-8 stainless steel.

Stainless Steel Drilling Screws with Washer for Metal

Made from 410 stainless steel, these screws are strong, wear resistant, and mildly chemical resistant.

Drilling Screws for Joining Fabric to Metal

These screws have a free-rotating, permanently attached washer that remains stationary while tightening to prevent bunching while attaching tarps and other fabric to metal.

Screws for Joining Sheet Metal to Wood

Able to penetrate overlapping sheets, these screws have a secure hold in wood.

Steel Vibration-Damping Hex
Head Screws for Sheet Metal

These steel screws are zinc plated to resist corrosion in wet environments.

Stainless Steel Vibration-Damping
Hex Head Screws for Sheet Metal

Made from 18-8 stainless steel, these screws are chemical resistant.

Rounded Head Screws with Washer for Sheet Metal

A free-rotating, permanently attached washer distributes holding pressure over a wider area than a flange and remains stationary to prevent scratching the material surface as you tighten the screw.

Sealing Blunt Screws for Sheet Metal

A rubber O-ring under the head creates a seal that withstands liquid and gas pressure.

Stainless Steel Hex Head Screws
for Joining Plastic to Wood

18-8 stainless steel screws have good chemical resistance.

Steel Hex Head Screws for Joining Plastic to Wood

These steel screws are zinc plated to resist corrosion in wet environments.

Rounded Head Screws for Joining Plastic to Wood

Cutting wings under the head allow plastic to expand and contract without cracking. A washer made from aluminum and rubber bonded to steel adds a watertight seal.