About This All-In-One Fastening: The Screw Bolt Assortment Sets feature 100 M6 bolts with cap nuts for integrated construction, space-saving design, and easy assembly, complete with 2 drive tools. Adaptable Fit: Designed for a 0.315" (8 mm) hole size and compatible with thicknesses ranging from 1.77" (45mm) to 2.20" (56mm), these kits are suitable for diverse DIY and craft tasks. Long-Lasting Construction: Crafted from robust materials, our bolts offer clean threading that maintains firm grip, ensuring lasting secure connections. Versatile for Creativity: Suited for an array of creative projects, from furniture assembly to crafting and decorative work, our bolts are go-to for many applications. User-Friendly Assembly: Enjoy a simple installation process—just insert, align, and secure with the included M4 wrench for a steadfast fastening solution. Overview Material : Carbon Steel Head Style : Hex Item dimensions L x W x H : 1 x 1 x 1 inches Exterior Finish : Nickel Thread Size : M6