Lag Screws | McMaster-Carr

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About Tapping Screws

Steel Hex Head Screws for Wood

These steel screws have corrosion-resistant finishes.

18-8 Stainless Steel Hex Head Screws for Wood

18-8 stainless steel screws have good chemical resistance.

Super-Corrosion-Resistant 316 Stainless
Steel Hex Head Screws for Wood

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

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.

Steel Flanged Hex Head Screws for Wood

These steel screws are hot-dipped galvanized to resist corrosion in wet environments.

Stainless Steel Flanged Hex Head Screws for Wood

These 316 stainless steel screws have excellent resistance to chemicals and salt water.

Wood Screw-Style Hangers

Drive these hangers into wood with an adjustable wrench, pliers, or a special driver bit.

Threaded Rods and Studs

Steel Wood Screw Threaded Studs

These studs are also known as hanger bolts—use them to hang, mount, and fasten parts to wood structures.

Stainless Steel Wood Screw Threaded Studs

18-8 stainless steel studs have good chemical resistance and may be mildly magnetic. Also known as hanger bolts, use them to hang, mount, and fasten parts to wood structures.

Metric Stainless Steel Wood Screw Threaded Studs

These metric 316 stainless steel studs have excellent resistance to chemicals and salt water. Also known as hanger bolts, use them to hang, mount, and fasten parts to wood structures.

Wood-to-Wood Joining Studs

Also known as dowel screws, use these to join two pieces of wood.