4000 Inboard End Boom - Gnav Gooseneck (retrofitable)

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4000 Inboard End Boom - Gnav Gooseneck (retrofitable) SEL_509-081-09 You will need to rivet (6 no. 4.8mm dia 12mm long rivets required) this on your old boom both on the top with t he three holed stainless steel plate and on he side walls. You will also be advised to bolt through to the whole seciton using the related 100mm countersunk M5 machine screw ( see related items). I would put a nut/washer at the base of the unit and the base of the boom. Show more