Someone on the list was looking for a 1/4-28 left hand thread bolt. I did some web searching and the closest thing I could find was a 6' length of 1/4-28 left hand threaded rod at around $39.00. The web site is www.mutualscrew.com . This is very pricey but short of buying a die and making your own this might be the next best solution. - Howie AB2S