According to ASTM A413 and NACM Specification. Proof tested to 2x the Working Load Limit. Grade 40 High Test/ High Test Galvanized. Bright or hot galvanized.
Normal Size Inches	Working Load Limit in Lbs.	Feet per Drum	Feet per 1/2 Drum	Min. Weight per Ft.	Max. Length per 100 Links
1/4	2,600	800	400	.63	124.0"
5/16	3,900	550	275	.93	129.1"
3/8	5,400	400	200	1.41	137.8"
1/2	9,200	200	100	2.4	179.1"
5/8<	13,000	150	75	3.58	220.5"
3/4	20,200	100	50	5.48	275.6"

 

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