Nylon Sleeve Hammer Set Plastic Expansion Anchor Round Head Nail Fixing Plugs Standard Size for General Construction Product Description The Standard Size Nylon Sleeve Hammer-Set Plastic Expansion Anchor is a versatile general-purpose fastening solution for concrete, solid brick, hollow brick, and block wall applications. The anchor consists of a high-strength nylon PA6 sleeve body with a pre-inserted zinc-plated steel nail featuring a round countersunk head, designed for