Phillips roundhead screws are ideal for modern tuners. Slotted roundhead screws are perfect for traditional tuner styles and vintage instruments.
Waverly guitar machines use slotted screws. Both styles are 3/8" long.
Pilot holes required: Installing delicate screws such as these into hard maple requires great care and accuracy. We highly recommend using a 3/32" bit for the pilot hole before installing these screws. Lubricate the screw threads with cutting lubricant (also wax or a bar of soap) to reduce friction and help them thread properly.