Hilitchi 7Sizes 100Pcs Black Nylon Acorn Nut Metric Inner Threaded Cap Nuts Assortment Kit M3 4 5 6 8 10 12 Dome Nuts Specifications - Product Name: Cap Nuts - Material: Nylon - Thread Size: M3 M4 M5 M6 M8 M10 M12 - Color: Black Features - Made of nylon, very strong, stiff, and lightweight. - Acorn cap nut is a hex with an enclosed dome and it is partially internally threaded, can play a good role in decoration and to prevent being threaded scrape. - It is widely used to stairs,rails,expansion screws decoration etc. - This set is organized by size / type in a transparent storage case for quick access and protection. Package Included - M3 - 30pcs - M4 - 20pcs - M5 - 20pcs - M6 - 10pcs - M8 - 10pcs - M10 - 5pcs - M12 - 5pcs Package Quantity: 100pcs This set is organized by size in a transparent storage case for quick access and protection. Hilitchi is a professional company of fasteners. We sell steel, stainless steel and brass screws, self tapping screws, self drilling screws, dry wall screws, hex nuts, hex bolts, rivets, anchors, nails, flat washers, spring washers, couplings and fixings.