NACM2003 Standard Link Chain Proof Coil Chain NACM2003 (G30)
Trade Size		Material  Diameter		Working Load Limit		Proof Test		Breaking Force Min		Inside Length		Inside Width
MM	IN	IN	MM	LBS	KG	LBS	KN	LBS	KN	IN	MM	IN	MM
4	1/8	0.156	4	400	180	800	3.6	1600	7.2	0.94	23.9	0.25	6.4
5.5	3/16	0.217	5.5	800	365	1600	7.2	3200	14.4	0.98	24.8	0.3	7.7
7	1/4	0.276	7	1300	580	2600	11.6	5200	23.2	1.24	31.5	0.38	9.8
8	5/16	0.331	8.4	1900	860	3800	16.9	7600	33.8	1.29	32.8	0.44	11.2
10	3/8	0.394	10	2650	1200	5300	23.6	10600	47.2	1.38	35	0.55	14
11.9	7/16	0.488	11.9	3700	1680	7400	32.9	14800	65.8	1.64	41.6	0.65	16.6
13	1/2	0.512	13	4500	2030	9000	40	18000	80.2	1.79	45.5	0.72	18.2
16	5/8	0.63	16	6900	3130	13800	61.3	27600	122.6	2.2	56	0.79	20
20	3/4	0.787	20	10600	4800	21200	94.3	42400	188.6	2.76	70	0.98	25
22	7/8	0.866	22	12800	5810	25600	114.1	51200	228.2	3.03	77	1.08	27.5
26	1	1.02	26	17900	8140	35800	139.1	71600	318.2	3.58	90.9	1.25	31.7