Postby Foil » Tue Jul 27, 2021 7:22 am
easy job,
I see its a Moses mast fixed to a Groove Skate, same as mine then!
same fixing hardware, a few tried a tested ways to tackle this.( the hammering in a oversize HSS hex head key is a first try method but if that fails then this next method will not fail-)
firstly we know that's a stainless steel 8mm threaded stud under that now damaged button head, and the stud is clamping the boards mast track to the board using the brass T nut, there will be a small gap under the bottom of that 8mm stud, so use a 8mm HSS (black best quality) drill bit and insert it into a good mains powered hand drill, have a can of WD40 handy for cooling and lube, set on high speed and get your weight over you hands to control the drill as you carefully drill down, the job should be done quite quickly and easily, the top of the stud will spin free as you press through and then the stud that left will fall back to the bottom of the boards track, then your mast will lift clear, easy peasy.
the stud should then be easy to unscrew from the released Tnut after sliding it out of the track, renew all your mast bolts with either the ones from groove, or Bolt Base if here in the uk, and use only the best SSteel keys in future, these ones are the best, special ends to prevent damage to both key and button heads --