Precision-18, DM375, 3.75"

Boat uses Dwyer mast DM-375.  This insert made for feed slot length of 3-3/4"
White is natural nylon surface can be dyed.   Black provides better UV protection; Orange for best viewing by the sailing school.  Video: https://youtu.be/FAii6nqC12s

Strong durable nylon MastGate snaps into feed slot to bridge a 3- 3/4 inch long feed slot.
Includes optional use,  bottom hole guide for a 6-32 x 3/16" stainless set screw to prevent sliding out of place when under reefing pressure.:
The 1/16" drill guide hole is handy for marking the location on the back web of feed slot to drill a shallow 1/8" pocket for a set-screw to set into.   Use a 1/16" allen wrench to seat a 6-32 x 3/16" stainless set screw (not included) in the bottom of the plastic gate, the tip of the screw will act as a lock pin to prevent sliding.
(using the set screw is to help prevent the insert gate from sliding out of position)

 For install help or  alterations for a different feed slot length, contact Tom Luque at  info@MastGates.com
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PG329B DM375 3.75inch.V10.R.3