[TowerTalk] Mast slippage

[john at kk9a.com]

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