Hex Self Drill Screw 1/4-20 x 8" #5 Point Exterior Coated 25 Pieces

Hex Self Drill Screw 1/4-20 x 8" #5 Point Exterior Coated 25 Pieces. 1/4-20 x 8" screw for drilling into up to 1/2" steel. It's hard to believe but these screws will drill into steel up to 1/2" thick. Best results with high speed, impact drivers work well. Perfect for mounting gang boxes, plywood backboards and more to steel columns. Keep a box in your truck, you will find many uses for them. FREE USPS SHIPPING! Other shipping options available at check out.