Mast ram insert - M3

Quick Overview

Mast ram insert - M3. 10 mm diameter with captive M3 Nyloc nut. Supplied with M3 x 16 mm socket head screw.


Designed to be inserted into the mast of a Marblehead or Ten Rater rig and to provide a M3 socket head screw mast ram. Typically used on NIOUTRAM rigs.

Product code. 140-M3

Availability: In stock

£2.50

* Required Fields

£2.50

Mast ram insert - M3

More Views

Details

Mast ram insert - M3. 10 mm diameter with captive M3 Nyloc nut. Supplied with M3 x 16 mm socket head screw.

Designed to be inserted into the mast of a Marblehead or Ten Rater rig and to provide a M3 socket head screw mast ram. Typically used on NIOUTRAM rigs.

Designed to work with our 12B, 12C, 12D and 12E goosenecks that have been modified by cutting away the gooseneck body to allow the socket head screw to work as a mast ram. The major benefit of having the mast ram captive on the mast is that there is no need to adjust it each time the rig is added to the boat.

The mast diameter for the 12B, 12C, 12D and 12E goosenecks is 14 mm. A length of 12 mm OD x 10 mm ID tube should be inserted into the mast spanning the gooseneck position to provide reinforcement at this point of maximum stress. The mast ram insert is sized to fit inside that piece of reinforcement.

To fit the mast ram insert: Make a positioning tool by adding a short length of M3 studding, or M3 screw with the head removed, to the end of a piece of timber or metal long enough to place the mast ram insert where required. Screw the mast ram insert onto the end of the tool. With the gooseneck in place, position the mast ram insert and adjust so that the nut aligns with a 3 mm diameter hole drilled where required in the mast. Add the M3 socket head screw. Unscrew the tool. If you want to lock the mast ram insert into the mast, drill a 1 mm diameter hole close to and vertically above or below the M3 socket head screw into which a piece of 1 mm stainless steel wire should be pressed.