This Is the 8 x 1.00mm Lite Lock from Harry B. Higley.:
SPECS Shaft Size: 8x1.00
Product Features
Aluminum construction..:
An electric starter or a backfire can cause the propeller to spin of especially with four-stroke engines. Any mechanic knows a second nut, screwed against the original one, locks both tightly in place..:
This Prop Lock replaces the propeller washer. A normal nut, or Heav Hub is screwed against the Prop Lock..: