Mounting Base 1.75 in x 2.75 in x 0.38 in

Our mounting base plate provides a mounting surface for standard posts and post holders. As our most popular post holder mounting base plate we offer, the post holder mounting base plate has three bottom located counterbored clearance holes for 1/4-20 cap head screws as well as a machined relief cut to assure flat, stable mounting to a variety of surfaces including breadboards and optical tables. Two 1/4-20 clearance slots are also provided to allow for easy mounting to the optical table or breadboard. This post holder base plate is compatible with imperial tables, posts, and post holders

• Relief cut for to assure stable mounting
• Countersink for mounting with 1/4-20 cap screws
• Standard 3/8 inch Thick
• 1/4-20 Clearance slots for a full inch of sliding movement