Concrete anchor consists of two pieces permanently preassembled into a single unit. The carbon steel rod is threaded for a portion of its length. The extreme end of the threaded portion is rounded to protect the threads from damage while the anchor is being driven into the hole drilled in the concrete. The other end of the rod has a necked down diameter, which runs for a short distance, at the end of which it tapers outwardly to the full diameter of the rod.
Following are the specification for Concrete Anchors.
Anchor Size | Hole Size | Min. Embedment | Std. Thread Length |
---|---|---|---|
1/4” all sizes | 1/4” | 1-1/8” | 3/4” |
3/8” x 2-1/4” | 3/8” | 1-1/2” | 7/8” |
3/8” | 3/8” | 1-1/2” | 1-1/8” |
1/2” all sizes | 1/2” | 2-1/4” | 1-1/4” |
5/8” all sizes | 5/8” | 2-3/4” | 2” |
3/4” all sizes | 3/4” | 3-1/4” | 2” |
7/8” | 7/8” | 3-7/8” | 2-1/4” |
1” | 1” | 4-1/2” | 2-1/4” |
1-1/4” | 1-1/4” | 5-1/2” | 3-1/4” |
All measurements are in inches.