CONFAST 1/4" x 4" Pre-Expanded Mushroom Head Tamper-Proof Masonry and Concrete Anchors, Carbon Steel Zinc Plated (Box of 100) : Amazon.ca: Tools & Home Improvement
Commercial Bike Rack Installation Methods [Instructions & Images]
Tanner - Spike Anchors are one-piece, vibration-resistant pin anchors for use in concrete, block, or stone. Available in several head styles, including tamperproof versions and anchor materials. Spike anchors are pre-formed, no