Drop-in anchors for anchoring/fastening to brick, block & concrete.
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Drop-in Anchors
Frequently asked Drop-in Anchor Questions
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What size bit do I use for each of the Drop-in anchors?
Use the chart below for determine the correct bit size for your drop-in anchor.
| Anchor Size | Drill Bit Size |
| 1/4" | 3/8" |
| 3/8" | 1/2" |
| 1/2" | 5/8" |
| 5/8" | 3/4" |
| 3/4" | 1" |
What does the anchor size refer to?
The drop-in anchor size refers to the diameter of the threaded rod or bolt that can be inserted into the anchor.
How deep should the hole be drilled?
The hole should be drilled equal to the length of the anchor.
Can drop-in anchors be used in brick or block?
No, drop-in anchors should only be used in solid concrete.
What type of threads are in the drop-in anchors?
National coarse threads.