This is particularly relevant for hard-working scissors like those for kitchen or fabric. Scissors are cast in two pieces that are "married": when they are finished, they are tapped and fastened together with (usually) a nut and bolt. With normal use, the nut and bolt should stay securely fastened.However, especially with detachable-blade kitchen scissors, the bolt may become loose. The fix is simple: use a pair of pliers or a wrench to hold the bolt securely and hand tighten until it cannot be tightened further. The reality is that when pieces of metal are not welded together (ie: a nut and bolt) they can become loose over time, especially with demanding use. This basic maintenance will keep your scissors in good working order for many years to come.If you misplace or lose a bolt for your scissors - please contact us; we may be able to obtain a replacement part for you. Your patience is appreciated as replacement parts must be shipped overseas from our heritage makers.