Right Hand Thread
- Specifically designed for use on RV's & Trailers
- Hardened Steel
- Fits: 9/16" wheel bolts
- Threads per inch: 18
- Hex size: 3/4"
- Overall length: 1.92"
- Standard 60-degree Conical Seat
- Quantity: 1 lug nut
We tested our regular and bulge style acorn lug nuts against four competitors in a CASS (copper-accelerated acetic acid-salt spray) chamber. This test was developed by the American Electroplaters Society to measure the specific corrosion resistance of nickel-chromium platings. It involves subjecting plated parts to a salt solution at a specific temperature, pressure and length of time to emulate exposure to the elements.
Accelerated tests like this are employed by car manufacturers to measure quality and performance. A 22 hr. CASS cycle is considered to be equivalent to one year of exposure in Detroit weather conditions. Before each 22 hour CASS cycle the lug nuts were installed and removed using a lug wrench to simulate normal use.