I purchased a D1-4 chuck without the three pins, figuring they would be common and cheap. I found that there are no standards for the thread end and the set I got from Ebay for around $50 with shipping did not fit. I finally got a set that fit from Grizzly for a bit over $66 with shipping. Moral: if you do lose them, check the threads and your wallet before purchasing.
Don Young
Dan
I believe that MSC Direct has them.
Bob AZ
That probably means the threads were metric.
Paul
I've bought 4 D1-4 chuck mount plates and all had M10x1 threads for the pins. 3 plates were Bison and 1 some other cheap no name brand. I've not checked the pins on the 2 other chucks as I've never had to pull them. J&L in the UK do the camlock pins and only list M10x1 for the D1-4, the other size all being metric as well.
I see them listed for $15.13 each. They do not indicate what the thread is.
Don Young
The chuck threads are M10 X 1. The pins which do not fit, supposedly South Bend, are 7/16" NF.
Don Young
I believe that MSC Direct has them.
Don
7/16-20 according to:"
Bob AZ
Don
7/16-20 according to:"
Don Young
Don
7/16-20 according to:"
Don Young
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