Square Wood Screws | McMaster-Carr

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201 Products

About Tapping Screws

Steel Square-Drive Flat Head Screws for Wood

Beveled under the head for use in countersunk holes, these steel screws press threads into material for a tight, secure hold.

Brass Square-Drive Flat-Head Screws for Wood

Brass screws are corrosion resistant in wet environments and electrically conductive.

Screws for Hardwood

Also known as Type 17 auger point screws, these penetrate hardwood and reduce driving torque. They require a pilot hole to prevent splitting when used near an edge.

Steel Rounded Head Screws for
Plywood and Oriented Strand Board

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

Steel Flat Head Screws for Plywood
and Oriented Strand Board

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

18-8 Stainless Steel Flat Head Screws
for Plywood and Oriented Strand Board

18-8 stainless steel screws have good chemical resistance.

18-8 Stainless Steel Square-Drive Screws
for Softwood and Plastic-Wood Composites

18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant 316
Stainless Steel Square-Drive Screws for
Softwood and Plastic-Wood Composites

More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water.

18-8 Stainless Steel Thread-Cutting Small-Head
Screws for Softwood and Plastic-Wood Composites

18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Cutting Small-Head Screws
for Softwood and Plastic-Wood Composites

More corrosion resistant than 18-8 stainless steel screws, these have excellent resistance to chemicals and salt water.

Thread-Forming Small-Head Screws for
Softwood and Plastic-Wood Composites

Thread-forming screws press threads into drilled holes for a tight, vibration-resistant assembly.

Sealing Screws for Softwood
and Plastic-Wood Composites

The neoprene-backed washer seals out contaminants.

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.

About Tapping Screws

Screws for Wood

Steel Square-Drive Flat Head Screws for Wood

Brass Square-Drive Flat-Head Screws for Wood

Screws for Hardwood

Steel Rounded Head Screws forPlywood and Oriented Strand Board

Steel Flat Head Screws for Plywoodand Oriented Strand Board

18-8 Stainless Steel Flat Head Screwsfor Plywood and Oriented Strand Board

18-8 Stainless Steel Square-Drive Screwsfor Softwood and Plastic-Wood Composites

Super-Corrosion-Resistant 316Stainless Steel Square-Drive Screws for Softwood and Plastic-Wood Composites

18-8 Stainless Steel Thread-Cutting Small-HeadScrews for Softwood and Plastic-Wood Composites

Super-Corrosion-Resistant 316 StainlessSteel Thread-Cutting Small-Head Screws for Softwood and Plastic-Wood Composites

Thread-Forming Small-Head Screws forSoftwood and Plastic-Wood Composites

Sealing Screws for Softwoodand Plastic-Wood Composites

Rounded Head Screws for Joining Plastic to Wood

Rounded Head Screws for Joining Plastic to Wood

Steel Rounded Head Screws for
Plywood and Oriented Strand Board

Steel Flat Head Screws for Plywood
and Oriented Strand Board

18-8 Stainless Steel Flat Head Screws
for Plywood and Oriented Strand Board

18-8 Stainless Steel Square-Drive Screws
for Softwood and Plastic-Wood Composites

Super-Corrosion-Resistant 316
Stainless Steel Square-Drive Screws for
Softwood and Plastic-Wood Composites

18-8 Stainless Steel Thread-Cutting Small-Head
Screws for Softwood and Plastic-Wood Composites

Super-Corrosion-Resistant 316 Stainless
Steel Thread-Cutting Small-Head Screws
for Softwood and Plastic-Wood Composites

Thread-Forming Small-Head Screws for
Softwood and Plastic-Wood Composites

Sealing Screws for Softwood
and Plastic-Wood Composites