I am mounting a Bow pulpit on a 22 Grady, was wondering if anyone could tell me best size bolt to use on this project?
Thanks
Thanks
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What Size Bolts to use on Mounting a Bow Pulpit?
- Thread starter Roadworker
- Start date
I just replaced mine but I didn't measure the bolts. I could make a good guess though. They were slottet, round head, 3/8 Diameter.
The two most forward bolts were about 4 inches in length and the aft two were 3 1/2 inches long. I didn't actually measure them so maybe get the longest ones possible and check the length and cut them. Of course use nylon lock nuts and washers.
The two most forward bolts were about 4 inches in length and the aft two were 3 1/2 inches long. I didn't actually measure them so maybe get the longest ones possible and check the length and cut them. Of course use nylon lock nuts and washers.
gerrys
Well-Known Member
Be sure to use fender washers or, better yet, fabricate a backing plate to distribute the stress.
BobP
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I was thinking 1/2 or 5/8 inch round head slotted . Lets see what Grog finds vs. my memory.
I had them out about 5 years ago.
I had them out about 5 years ago.
3/8" x 4" ss slotted round head (flattened pan head). The fender washer for underneath is 1 3/4" x 1/8" thick (4 of them).
Don't go any less than a 3/8" bolt with a head that is wide enough to distribute the stress and not trip you, beefy fender washers underneath, and sealant (3M 4000UV).
Don't go any less than a 3/8" bolt with a head that is wide enough to distribute the stress and not trip you, beefy fender washers underneath, and sealant (3M 4000UV).
OK thanks Guys
Do any of you have a plate inside robe cabing to re-inforce fiberglass?
And if so can you use a thick piece of plywood?
Do any of you have a plate inside robe cabing to re-inforce fiberglass?
And if so can you use a thick piece of plywood?
If you use wood, you are adding to the length of the bolt which wouldn't necessarily be a good thing. I think just the fender washers would be adequate. The bolt heads would have to shear off before the washers pull through and now your talking about a lot of destructive force.
NautiBuoys
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Pulpit
Just took mine off a 23' Gulfstream to have some repairs done. 4 3/8" bolts (w/nylock nuts) with 3/16" hard aluminum fender washers (2.5" dia), plus 8 size 10 ss bolts (4 each side). The eye ring/bit also threads on to the tierod thru the pulpit as well.
Just took mine off a 23' Gulfstream to have some repairs done. 4 3/8" bolts (w/nylock nuts) with 3/16" hard aluminum fender washers (2.5" dia), plus 8 size 10 ss bolts (4 each side). The eye ring/bit also threads on to the tierod thru the pulpit as well.