Check the listing for details. Ludwig P-1216A Tom Mount Cr 65 1st Gen. Rare 1/4" 20 Eye Bolt & Nut LTM-305-1. Condition: Used, Made in United States. Listed at 62.99 USD. Ludwig P-1216A (Rare) Circa 1965. Very heavy casting, almost twice as thick as a modern or current generation P-1216D. This 1st generation only lasted about 6 to 12 months until it was replaced with the second generation with a wider eye bolt like modern P-1216Ds but still with a 1/4" 20 thread instead of the current or most common version P-1216D with the wider eye bolt with a 5/16" 18 thread for a wing nut or hex nut and in later years a T-Handle.