Drop-in anchors are internally threaded steel expansion anchors for solid concrete. The anchor is dropped into a drilled hole and set by driving an expander plug with a setting tool, leaving a threaded socket flush with the surface. A bolt or threaded rod is then screwed in.
Linkworld supplies drop-in anchors from M6 to M20 in zinc plated carbon steel and stainless steel for fastener distributors, electrical and mechanical contractors and builders’ suppliers. We pack in bulk cartons or in your own branded packs. Setting tools are not included.
Drop-In Anchor Specifications
| Specification | Configuration |
|---|---|
| Product | Drop-in anchor, internally threaded |
| Thread sizes | M6, M8, M10, M12, M16 and M20 |
| Material | Carbon steel; stainless steel |
| Finish | Zinc plated for carbon steel; plain stainless |
| Body | Standard or lipped (flanged), to drawing |
| Base material | Solid concrete |
| Packing | Bulk cartons, own-brand boxes, buckets and small packs |
Other sizes and finishes can be made to drawing or sample.
Where Drop-In Anchors Are Used
- Suspended services threaded rod for pipes, cable trays and ducts
- Ceilings hangers for suspended ceilings
- Fire sprinklers and HVAC overhead supports in concrete slabs
- Removable fixtures where the bolt must be taken out and the socket left flush
Choosing Drop-In Anchors
- Thread size: match the bolt or threaded rod you will use.
- Material: zinc plated carbon steel for dry interior use; stainless steel for damp or outdoor areas.
- Setting: each size needs the matching setting tool and drill size.
- Base: drop-in anchors are for solid concrete, not hollow block or brick.
Anchor selection for overhead and structural fixings should follow the project design.
Common Purchasing Mistakes
Using the wrong setting tool. An anchor that is not fully set will not hold. Use the tool made for that size.
Using drop-in anchors in hollow masonry. They are designed for solid concrete.
Mixing thread sizes. Give each thread size its own code and label.
Zinc anchors in wet areas. Specify stainless steel for damp or outdoor use.
What to Send with Your Enquiry
| Item | What to tell us |
|---|---|
| Size | Thread size and length |
| Material | Carbon steel or stainless steel |
| Body | Standard or lipped |
| Quantity | Quantity for each size |
| Packing | Bulk carton, own-brand box, bucket or small pack |
| Destination | Destination port |
Packing and Supply for Distributors
We pack drop-in anchors in bulk cartons for trade distribution, or in your own branded boxes, buckets and small packs for retail. Each size can carry its own label. For customers who plan several deliveries through the year, we offer free warehouse storage and staged shipments.
Work With Linkworld
Linkworld has more than 20 years of fastener export experience and runs its own cold heading workshop. Our own QC team checks thread, body and coating in our inspection room before every shipment. We make anchors to drawing or sample, so special lengths and packs are welcome.
Frequently Asked Questions
What is a drop-in anchor?
It is an internally threaded expansion anchor that sits flush in solid concrete, ready for a bolt or threaded rod.
What sizes do you supply?
M6 to M20. Other sizes can be made to drawing.
Do drop-in anchors need a setting tool?
Yes. Each size needs its matching setting tool. Setting tools are not included with our anchors.
Can drop-in anchors be used overhead?
They are widely used for suspended services. Overhead fixings should follow the project design.
Do you make stainless drop-in anchors?
Yes. We supply stainless steel as well as zinc plated carbon steel.
Looking for drop-in anchors in your own sizes or packs?
Send the sizes, finish, quantity and packing you need through the enquiry form below, and our team will reply with the options that fit your range.
Send an Enquiry
Send a drawing, sample or clear reference photo. Add the quantity and application if available, and we can start from the information you already have.