fine threads and the self drilling tip make these screws ideal for penetrating and holding into metal framing studs and other types of metal or aluminum framing

3/8-16 x 7 1/2 Socket Cap Screw Alloy

3/4-10 x 9 Socket Cap Screw Alloy

5/8-11 x 6 Simpson Wedge Anchor 304 SS (20)

8 x 1 Square Flat Particle Board Screw w/ Nibs T17 Zinc Plated - Carton (10,000) 3/4-10 Socket Cap Screws 18-8 Stainless Steel fine threads and the self8 x 1 Square Flat Particle Board Screw w Nibs T17 Zinc Plated Carton (10,000). Wood screws used for interior wood applications. Asymmetrical thread pattern resists material slippage during pull out and vibration. Counter sinking NIBS for a flush finish. Type 17 tip reduces wood splitting. Superior holding power.