Star Lock Washers Our range of metal quick-fit, simply push-on Star Lock fastening washers are available in a variety of sizes to suit an extensive scope of fixings. M3 Washers Our five-piece pack containing M3 Star Lock washers. M4 Washer Our five-piece pack containing M4 Star Lock washers. M5 Washer Our five-piece pack containing M5 Star Lock washers. M6 Washer Our five-piece pack containing M6 Star Lock washers. M8 Washer Our five-piece pack containing M8 Star Lock washers. M10 Washer Our five-piece pack containing M10 Star Lock washers. M12 Washer Our five-piece pack containing M12 Star Lock washers.