Style 4188-SL

Ratchet rail mount
Ratchet Rail Mount – Ratchet action, fast release design for quick and easy laydown. Mounts easily on vertical or horizontal rails – Same as Style 4188-S, but for 1in to 1 in rails.
Standard 1in-14 thread.(male)
9/32in hole for cable feed-through
Handles antennas up to 8ft
Heavy duty construction