Metric Tapping Screws | McMaster-Carr

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About Tapping Screws

18-8 Stainless Steel Phillips Rounded
Head Screws for Sheet Metal

18-8 stainless steel screws have good chemical resistance.

18-8 Stainless Steel Phillips Flat
Head Screws for Sheet Metal

18-8 stainless steel screws have good chemical resistance.

Strip-Resistant Screws for Sheet Metal

Also known as Fastite screws, these offer more thread engagement in 0.028" to 0.063" thick sheets to prevent overtightening and damaging threads.

Metric Steel Hex Head Drilling Screws for Metal

Cutting their own pilot hole and threads as you fasten them into material, these metric screws have a drilling tip.

Metric Steel Flat Head Drilling Screws for Metal

With a drilling tip, these metric screws cut their own pilot hole and threads as you fasten them into material.

Metric Steel Phillips Rounded
Head Drilling Screws for Metal

Drill a pilot hole, cut threads, and fasten in one motion with these metric-threaded screws. Made of steel, they’re strong and wear resistant.

Metric Stainless Steel Phillips Oval
Head Thread-Cutting Screws for Metal

For a finished appearance that reduces the chance of snags on other material, these screws fit snugly in countersunk holes and have a domed head.

Metric Thread-Forming Screws for Soft Metal

These metric screws have a triangular shank that presses tightly as it forms threads, so screws resist loosening in soft metals such as brass, aluminum, and copper.

Thread-Forming Screws for Plastic

18-8 Stainless Steel Phillips Rounded
Head Thread-Forming Screws for Plastic

These 18-8 stainless steel screws have good chemical resistance.

Steel Phillips Rounded Head
Thread-Forming Screws for Plastic

Stainless Steel Torx Rounded Head
Thread-Forming Screws for Plastic

18-8 stainless steel screws have good chemical resistance.

Steel Torx Rounded Head
Thread-Forming Screws for Plastic

These steel screws have a black-oxide or zinc-plated finish to resist corrosion.

Stainless Steel Flat Head
Thread-Forming Screws for Plastic

18-8 stainless steel screws have good chemical resistance.

Steel Flat Head Thread-Forming Screws for Plastic

These steel screws are beveled under the head for use in countersunk holes.

Stainless Steel Thread-Forming
Screws for Thin Plastic

18-8 stainless steel screws have good chemical resistance.

Steel Thread-Forming Screws for Thin Plastic

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

Metric Steel Hex Head Screws for Wood

Drive the pointed tip of these screws into soft material, such as wood and drywall. They are also known as lag bolts.