Construction screws,

Material: 10B21

Diameter: 5, 6, 8, 10 mm

Length: 40~660mm

Head: Wafer / CSK head + Torx drive

Coating: zinc + wax

Thread: partial thread / full thread

Structural screws (also called construction screws) are stronger than lags and make longer-lasting connections. You can just zip them in with any 18-volt drill (no pilot hole required). The labor difference is so huge that by the time you finish drilling pilot holes and ratcheting in just a few lags, you could have finished the whole job with structural screws and be sipping a cold one.

Structural fasteners are made from stronger steel and are heat-treated for maximum strength. So even though they look less “beefy,” they’re actually one-to-one replacements for their fatter cousins. We made it has a modified drill bit embedded into the screw point, so the screw literally removes wood as it spins.

Structural screws also feature Torx (six contact points) or Spider (eight contact points) drive heads in addition to traditional hex-head styles. The additional contact points spread the driving torque and prevent the kind of “cam-out” you get with Phillips or square-head drive screws. The straight-sided Torx and Spider bits also hold the screw in place so you can “aim” and drill with one hand. You can’t do that with a Phillips head or a hex-head lag.