Nominal														Maximum recommended
size		A	B	C	D	E	F	H	M	P	R	S	X	SWL of socket, Dimensionally
(dia of rope)														to BS463:1958
					dia	dia	dia							EN 5A	EN 16
in	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	mm	tf	tf
5/16	8	43	51	30.2	15.9	9.5	15.9	14.3	38.1	19	9.5	11.1	4	0.84	–
3/8	9	51	64	38.1	20.6	11.9	19	20.6	44.4	20.6	15.9	14.3	4.8	1.06	–
7/16	11	51	64	38.1	20.6	13.5	22.2	20.6	44.4	20.6	15.9	14.3	5.6	1.59	–
1/2	13	60	76	44.4	23.8	15.1	25.4	22.2	54	23.8	17.5	17.5	6.4	2.22	3.08
9/16	14	60	76	44.4	28.8	16.7	28.6	22.2	54	23.8	17.5	17.5	7.1	2.58	3.52
5/8	16	70	89	50.8	28.6	18.3	31.8	27	63.5	31.8	20.6	19	7.9	3.36	4.54
3/4	19	76	102	61.9	33.3	21.4	38.1	33.3	74.6	38.1	25.4	23.8	9.5	4.74	6.32
7/8	22	86	114	69.8	41.3	25.4	44.4	39.7	84.1	44.4	28.6	25.4	11.1	6.36	8.24
1	25	105	130	82.6	49.2	28.6	50.8	46	100	50.8	34.9	28.6	12.7	8.88	11.26
1 1/8	29	114	143	92.1	57.2	31.8	57.2	50.8	114	57.2	38.1	31.8	14.3	10.3	13.74
1 1/4	32	133	152	108	63.5	34.9	63.5	60.3	124	63.5	41.3	38.1	15.9	13.44	17.44
1 3/8	35	152	184	127	69.8	39.7	76.2	66.7	146	75.2	47.6	44.4	19	16.1	20.6
1 1/2	38	152	184	127	69.8	42.9	76.2	66.7	146	76.2	47.6	44.4	19	18.96	24
1 5/8	41	152	184	127	69.8	46	76.2	66.7	146	76.2	47.6	44.4	19	21	26.4