Product: Hexagon Self-drilling Screw Material: carbon steel Specification: #12x20-#12x120 Surface treatment: galvanized Sold: per 100pcs Sizes available: For Metal #12 x 20mm - 3/4 inch #12 x 25mm - 1 inch #12 x 35mm - 1 1/4 inch #12 x 40mm - 1 1/2 inch #12 x 45mm - 1 3/4 inch #12 x 50mm - 2inch #12 x 55mm - 2 1/4 inch #12 x 65mm - 2 1/2 inch #12 x 75mm - 3 inch #12 x 95mm - 4 inch #12 x 120mm - 5 inch For Wood #12 x 25mm - 1 inch #12 x 35mm - 1 1/4 inch #12 x 50mm - 2 inch #12 x 65mm - 2 1/2 inch #12 x 75mm - 3 inch #12 x 95mm - 4 inch #12 x 120mm - 5 inch Service 1.If there are problems, inquiries or concerns, please feel free to message us and we will get back to you as soon as we can. 2.Please allow some slight color difference as different lights and monitors always show different colors. 3.All items are available and on hand, and are ready to be packed and shipped upon order. Feedback 1.Please kindly leave us a positive feedback (5 stars) , if you are satisfied with our items. And you could share with your friends on Facebook, Twitter...Thanks 2.Please contact us before leaving any negative feedback or open a dispute on Shopee. 3.Please give us the opportunity to resolve any problem. Thank you :)