Everything you need to fasten down the pots and jack on your Fender Strat. Set consists of four premium quality Genuine Switchcraft nickel plated bronze 3/8-32 UNEF-2A thread hex nuts, four nickel plated spring steel internally toothed full size lockwashwers and four nickel plated brass beauty washers. Essential parts for maintaining your Strat. Fits the CTS etc. pots and 1/4"Switchcraft jacks found on most USA Strats exactly. No roadie kit is complete without a set of this hardware.