Shakespeare 4187HD Stainless Steel Heavy Duty Ratchet Mount [4187HD] Marine Navigation & Instruments | Instruments These two-way panel speakers have

These two-way panel speakers have a 5" long throw woofer and a 1" mylar tweeter

Meets USCG/SOLAS requirements

Why Capstans

and the flat section supports the antenna

Shakespeare 4187HD Stainless Steel Heavy Duty Ratchet Mount [4187HD] Marine Navigation & Instruments | Instruments These two-way panel speakers haveShakespeare Style 4187 HD EXTRA HEAVY DUTY RATCHET MOUNT STAINLESS STEEL Versatile four way ratchet design for deck or side mounting. Quick action handle makes operation easy. Standard 1" 14 thread. The Style 4187 HD adds extra strength and rigidity. Use wherever its extra heavy duty construction is needed. Standard 1" 14 thread. 9 32" hole for cable feed through Bolt holes: 5 16" dia., 3" x 1 1 2" on center Specifications: Type: Mounting Brackets Box