Store where you can buy Allthread Rods. Our online bi-folds doors store have a lot of products. We Sell a huge range of Allthread. They are simply cut to length from stock bar, with zinc plate mild steel being adequate for most applications. Debar is an internationally trusted name supplying bi folding door hardware kits to the trade. If you have any question call us or visit our showroom in Colchester, Essex. We can help you with choice and fitting products for your needs. We have in offer bi-folds doors, windows made from aluminium and other products. All thread rod, commonly referred to as fully threaded rod and abbreviated ATR is used in conjunction with Debar Bi Folding Door Systems.