Quote Originally Posted by plargen View Post
dependent on the thickness of wood you can use threaded inserts you can get m3 to m10

http://www.ebay.co.uk/itm/M5-x-13mm-Unheaded-Hex-Drive-Screw-In-Threaded-Inserts-For-Wood-Type-E-20-Pc-/270978890726?pt=UK_BOI_Building_Materials_Supplies _Carpentry_Woodwork_ET&hash=item3f1799bbe6
Ooh thanks Plargen (sorry not sure of your real name lol). Would these be suitable for HDPE as well?