Metric Standard String Height Adjustment Grub Screws, Stainless Steel, M3-6mm, Pack of 12, Set Screws, Socket Set Screws You might find the screws protruding from the bridge bothersome when doing bridge mutes. Guitars generally use 8mm to 10mm screws, so replacing them with these can solve the problem. Also, with standard screws, rust can cause them to seize up and become unadjustable, but these are made of stainless steel, so you don't have to worry about rust. Furthermore, standard screws often have a cup point, but these have a cone point, allowing for more precise octave pitch adjustment. For those who pay attention to detail, what do you think?