This item is designed to increase the joint strength when bolting two pieces of timber together. central hole size - 12mm - M12. 'dog tooth washers'.
Double Sided Timber Connectors Washers Toothed Galvanised 50mm x M12
1 PACK OF 50 38mm SINGLE SIDED TIMBER CONNECTORS 12 MM CENTRE
Sabrefix M12 x 50mm Double Sided Timber Connector Toothed - Galvanised Box/100
PDKKFF Pack of 400 Double-Sided Nails, Double Head Skirting Board Nails, Seamless Nail with Double-Headed Skirting Thread, Invisible for Skirting Boards, Walls, Concrete Walls & Home Decoration with 4
100 PCS Double Headed Skirting Board Nails, Double Sided Traceless Nails Invisible Security Screws with 2 Sleeve Tools for Wood Furniture, DIY Craft Projects, Baseboards, Sofas, and Headboards
420 Pcs Double Headed Skirting Nails, Double Sided Traceless Nails with Sleeve T
