Shakespeare 4186 Nylon "Ratchet-Mount" is a four-way adjustable mount for deck or side mounting.
The bracket should not be used for heavy antennas and longer than 1.5m as the warranty will then be void.
Specifications:
Mounting holes: 5/16" dia., 3" x 1½" center
Standard 1" x 14mm external thread
Construction: Nylon with stainless steel bolts
Type: Ratchet / Ratchet
