2 .You can get: Self Drilling Screws Assortment (50Pcs #8 x 1/2", 30Pcs #8 x 3/4", 15Pcs #8 x 1",20Pcs #10 x 1/2",15Pcs #10 x 3/4", 10Pcs #10 x 1",10Pcs #12 x 3/4",5Pcs #12 x 1-1/2",5Pcs #12 x 2", self drilling screws for metal, silver, hex washer head)
3.Material : Our self tapping screws for metal are made of 410 stainless steel, corrosion resistant, rustproof, high strength, no deformation. 410 is magnetic stainless steel
4.Wide Applications: These Self drill Screws are perfect for use wood, fiberglass, and metal.The drill point enables it to drill its own hole in thin gauge steel,No pre-drilling necessary
5.24 Hours Service : If you have any questions, just let me know freely