But if you only need 4 of them.....I have found them at both the big orange and the big blue. In face one Lowes by me carries knife thread inserts. The Fastenal place in Weatherford looked at me like I was nutz. But they could order them in large quantities.
Again try the borgs. The 1/2" may be a problem, but I know I've purchased 3/8" from them. They are in the pull out bins by the bolts and nuts. Jim.
Home of Irish Setter Rescue of North Texas
When Irish Eyes are smiling, they're usually up to something!!
At a minimum, I'm Pentatoxic...but most likely, I'm a Pentaholic. There seems to be no known cure. Pentatonix, winners of The Sing Off, season 3