A Drop-In anchor consists of a zinc plated steel tubular expansion shield and a solid, cone-shaped expander plug. The expander plug is case hardened and tempered to prevent galling and binding during expansion. The shield has four equally spaced slots for a portion of its length and the bottom part may be knurled. The shield also has a smooth, flangeless top that allows for either flush or countersunk installation.
Following are the specification for Drop-In Anchors.
Anchor Size | Overall Length | Drill Bit Diameter | Internal Thrd. Length | Bolt Dia. |
---|---|---|---|---|
1/4" | 1" | 3/8" | 1/2" | 1/4" |
3/8" | 1-9/16" | 1/2" | 5/8" | 3/8" |
1/2" | 2" | 5/8" | 3/4" | 1/2" |
5/8" | 2-1/2" | 7/8" | 7/8" | 5/8" |
3/4" | 3-3/18" | 1" | 1-1/4" | 3/4" |
All measurements are in inches.