3/8-16 Drop-In Anchor Stainless Steel
These are a two-step installation anchor that expands by using a setting tool. It has a female internal thread that accepts standard UNC threaded rods from 1/4" to 3/4", and installs flush.
Drill size: 1/2"
Minimum embedment: 1-5/8"
NOTE: Must use the expansion tool for installation