The 56MM-MMB1 is a medium-duty, glass-filled, nylon, two-way adjustable knuckle mount for marine radio and cellular antennas to mount vertical, horizontal or inclined surfaces. MMB1's constructed from glass-filled nylon with a stainless steel bolt for adjustment and tension.
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| Height Inclusive Thread | 152mm |
|---|---|
| Height Exclusive Thread | 128mm |
| Weight | 360g |
| Base | 94(L)x57(W)x9(H)mm |
| Mounting Screw Holes | 74.5x48x7mm |