18-8 stainless steel screws have good chemical resistance.

Because these steel screws cut threads into drilled holes as they’re turned, they require less driving torque and cause less stress on material than thread-forming screws. Also known as trim-head deck screws, they have a small flat head and slender shank to reduce the risk of splitting boards.

Threads change direction to cut into composites and push material back into the hole to prevent distorting the surface around the hole.

Screws are beveled under the head for use in countersunk holes.

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

18-8 stainless steel screws have good chemical resistance.

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

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.

18-8 stainless steel screws have good chemical resistance.

These steel screws have a black-oxide finish to resist corrosion in dry environments.

The S-shaped drive can be installed with a standard slotted driver, but requires a special tool for removal.

With a square-drive head, these screws attach drywall to metal studs up to 0.036" thick. The head is one-third smaller than other drywall screws.

These square-drive screws have a drill point that powers through drywall and into metal studs up to 0.105" thick. Heads are one-third smaller than those of other drywall screws.