Hi John,
3/8" is a tad fat for the M8 hole.
5/16" = .3125" and will drop in a M8/.3149" hole
3/8" = .3750" and will drop in a M10/.3937" hole
73,
Jon Pearl - W4ABC
On 7/31/2020 12:36 PM, john@kk9a.com wrote:
Will 3/8 bolts fit into a plate designed for M8? I believe that
stainless steel bolts are typically not much stronger than grade 2.
Grade 8 bolts are available with Armor Coat which has great corrosion
protection.
John KK9A
Les Brown VE3NNT wrote:
Thanks for all the advice guys. I think I'll start with replacing the
SS M8 bolts with 3/8 inch grade 8 bolts (or grade 9 or 10?) to see if
that solves the problem. If it doesn't, I'll have to try the K7NV
clamp, but that will require me to remove the rotor to slip the clamp
on to the bottom of the mast, which won't be so easy. Given that half
the mast is sticking out of the top of the tower, I'll have to rig up
some pipes to hold the bottom of the mast in place for the operation.
It sounds like drilling and pinning isn't a good solution, and not
so easy to do.
73, Les VE3NNT
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