27-02-2020, 10:38 PM
Hi,
We use stainless big heads at work we bond them to the substrate with epoxy.
We also use Tappex Threadserts which come in brass or stainless they will cut a course thread into timber plastic or GRP and have a metric internal thread, in effect its a captive nut insert into your panel.
You can also get countersunk inserts which are inserted into timber which will stop the screw from damaging it with repeated use.
They will be harder to source but used in boatbuilding.
We use stainless big heads at work we bond them to the substrate with epoxy.
We also use Tappex Threadserts which come in brass or stainless they will cut a course thread into timber plastic or GRP and have a metric internal thread, in effect its a captive nut insert into your panel.
You can also get countersunk inserts which are inserted into timber which will stop the screw from damaging it with repeated use.
They will be harder to source but used in boatbuilding.