Grabber #8 x 1½ in. LOX Head w/ Draw tite upper thread, Ultracut Lower Thread Exterior Wood Screws, 875 Count. Driving wood-to-wood screws and deck screws can be a lot of work and a challenge especially when driving into harder materials. Anyone who has used wood screws has had experience with strip-outs, popped heads and screws that don’t seat flush. Grabber developed the new UltraPro screws to help take the hassle out of driving screws so you can concentrate on the job.