Review on PSCCO Cylindrical Slotted Furniture Headboard by Pete Brown

Although the kit I ordered has M8 bolts and lengths of 60.00mm or 90.00mm, the holes are spaced 1-1/4" (31.75 mm) or 2-1/2" (63.50mm). . As long as you control the placement of the holes it shouldn't matter much, but it's worth knowing about. However, a double cross nut is generally a bad one idea.This requires your bolt holes to be right on the butt so those bolts are just the right distance apart when crossing the double cross nut (which is very very hard to do.) My holes were pretty straight (drilled with parallels guides with bronze bushings), but not straight enough because my auger easily followed the grain of my wood - one of the bolts fitted the nut perfectly, but not both at the same time. In the end, I solved the problem by cutting these nuts in half & nd placed them on the same pillar.