#10 Flat Washer Quantity (5) The washer size to be used with a particular screw size is determined by the first number in the screw size. For example, a 4-40 machine screw and a #4 sheet metal have about the same major thread diameter and require a #4 washer, flat or lock.
#10 Lock Washer (5) Quantity per Package: 5 The washer size to be used with a particular screw size is determined by the first number in the screw size. For example, a 4-40 machine screw and a #4 sheet metal have about the same major thread diameter and require a #4 washer, flat or lock.
#2 Flat Washer (5) The washer size to be used with a particular screw size is determined by the first number in the screw size. For example, a 4-40 machine screw and a #4 sheet metal have about the same major thread diameter and require a #4 washer, flat or lock.
#4 Lock Washer (5) The washer size to be used with a particular screw size is determined by the first number in the screw size. For example, a 4-40 machine screw and a #4 sheet metal have about the same major thread diameter and require a #4 washer, flat or lock.
#6 Flat Washer (5) The washer size to be used with a particular screw size is determined by the first number in the screw size. For example, a 4-40 machine screw and a #4 sheet metal have about the same major thread diameter and require a #4 washer, flat or lock.
#6 Lock Washer (5) The washer size to be used with a particular screw size is determined by the first number in the screw size. For example, a 4-40 machine screw and a #4 sheet metal have about the same major thread diameter and require a #4 washer, flat or lock.