Topper insert pack
Specific Topper hull insert pack for toestrap bolts
Brass inserts for older Toppers that don't have the toestrap fixings fitted
Drill an undersized hole, thread insert onto bolt, heat until hot enough to melt plastic and push into hole. Keep in place until cool.
Note: Needs to be just hot enough to melt into place, if it's too hot it can continue to melt it's way through the boat.