3/4-Inch Heavy-Duty Industrial Grade 100 Coupling Link

3/4-Inch Grade 100 Coupling Link The 3/4" Grade 100 Coupling Link from B/A Products Co. is a reliable coupling link that lets your fleet get the extra length of 100 grade chain it needs in moments where it is needed most. With a grade of 100 and working load limit of 35,300 lbs, it lets you connect one length of 100 grade chain to another length of 100 grade chain.