This is a 7/16" drill bit used for all the standard climbing wall t-nuts.
3/8-16 Zinc Round Base T-nuts
Our order just shipped via SEA today. 8/25/20 We expect delivery early to mid-October. The Round base version will be in stock this week.
3/8-16 x 2" Indoor rated allen head bolt
The T-nut to choose for commercial high use, steep walls, and roof sections.
