1/4"-20 Drop-in Anchors, 100 Pcs Concrete Expansion Anchor Concrete & Stone Drop in Expansion Anchors Drill for Solid Concrete, Silver

This drop in anchor is suitable for new energy, light industry, communication industry, marine industry, machining, me-di-cal machinery, construction industry, automotive manufacturing and bridge construction.How to Use:1. You need to drill a hole of the right size.2. Then insert the anchor into the drilled hole.3. Then you need to insert the installation tool (not included) into the anchor bolt.4. The anchor is then tapped with a hammer to expand the anchor so that it can be embedded in the concrete.Specifications:Material: 304 Stainless SteelSurface Treatment: Brighten and DeburredMounting Type: Drop-inNumber of Pieces: 100Thread Size: 1/4-20''Product Outer Circle Diameter: 8mm/0.315inPerforation Diameter: 7.8-8mm/0.307-0.315inPackage Size: 11*10*3.5cm/4.3*3.9*1.3inchGross Weight: 0.8kg/1.76lbPackage Included:100* Expansion Anchors

• High Quality: It is made of high-quality 304 stainless steel that is very sturdy, wear-resistant, rust-proof, and impact-resistant, which can effectively protect the internal parts and prolong the service life.
• Safe and Reliable: It does not loosen easily and its reliable expansion control mechanism has undergone rigorous safety testing to ensure safe use.
• Good Performance: This product features a heavy-duty anchoring system and internal thread, typically used in conjunction with machine screws, bolts, and screws to secure the fixing device to concrete and other masonry materials.
• Drop-in Design：Our anchors feature a drop-in design,allowing for precise control of expansion rate and expansion range to meet different concrete elements and engineering requirements.
• Cost Saving: Since expansion anchors are made of precast concrete elements, while the anchor itself is always in the concrete, the bolts you use to hold it in place can be removed and reused. Thus, it helps you save money.