Silver-TT? Twin Thread Woodscrews

Ideal for power driving into hard wood, soft wood, MDF and chip-board. High helix double thread, ?drives home? in half the time of standard screws. Precision manufactured, thinner shank reduces wood splitting. Fully heat-treated and extremely hard for high resistance to breakage in high torque applications. Plated to five microns for greater corrosion-resistance. 35 point angle usually needs no pilot hole.