Customer service 02 42571230
Avoid doing it up the first time straight onto a panel etc.. twisting and over heating the stem.. usually results in a few unpleasant words being shouted...
Same goes for most any diecast or molding retainer .
If you don't have the right size speed nut.. and want a variety pack .. we have a few different usefull kits listed under "Speed Nut".. just type that into the SEARCH box on the top RHS of any page so see them.