ITEM NAME:10pcs/bag Bike Water Bottle Cage Bolts Tapping Screw for Bottle Holder Rack A#S Product Description Description: 10pcs/bag Bike Water Bottle Cage Bolts Tapping Screw for Bottle Holder Bracket Rack Cycling Accessories Description: This is a bicycle bottle cage screw, only screws, no nuts, no need for nuts to install the bottle cage on the bicycle. Specifications: Size: 16x8x8mm Weight: 2g material: metal Color: silver Function: fixed bottle cage Note: Product sizes are measured by hand, please carefully compare the size when purchasing. Please allow 1-3mm differs due to manual measurement. Due to the different display and different light, the picture may not show the actual color of the item.Thanks for your understanding. Included: 10 x Bike Screw.Function: fixed bottle cage. Included: 10 x Bike Screw. Weight: 2g. Warranty Service. If item is defective after 3 months, you can still send it back to us. We will send you a new one after receiving the defective item.