The TAPCON 24340 1/4-in x 3-3/4-in Hex-Washer-Head Concrete Screw Anchor 75-Pack is a high-quality fastener designed for concrete applications. With a screw size of #3 and a length of 4 inches, these steel anchors feature a hex washer head design for added security. The 75-piece pack ensures you have plenty of anchors for your projects, making it a convenient and durable solution for various industrial and construction needs.