This size coupling works with both the #3 and #6 size chain.
The standard hole diameter for the #6 'AD coupling is (.130"). Please note that you can select an alternative hole diameter of (.144") as well.
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These are much sturdier than the end chain connectors I tried to sub in my last order. Customer service is great, products always arrive quickly and it's all made in the USA.
Just what I needed. Easy to use and great service.
I've always received great service with this company. Can I get this item in medieval brass?