100pck Lockwasher 5/16" internal

Unless differently indicated all parts fit with the Delco-Remy, Prestolite or Hitachi style starter motor. Please note that the housings for Delco-Remy and Prestolite starters are 1/4" UNC threaded on a 2 1/4" center to center. The housing for Hitachi style starter motors is #10 UNC threaded on a 2 3/8" center to center.