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Hex Self Drill Screw 12-24 x 1-1/4" #5 Point Exterior Coated 100 Pieces. 12-24 x 1-1/4" screw for drilling into up to 1/2" steel. Strong Shield Coated for exterior use (Strong-Shield coating exceeds 1,000/hr. salt spray resistance). 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. Strong Shield Coated. FREE USPS SHIPPING! Other shipping options available at check out.
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