Collared eyebolts

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Collared eyebolts are used when lifting on two or more points using a chain sling for example. When making your selection it is important that you remember that a reduction in the Safe Working Load must be factored in to take account of the slinging angle. The Collared eyebolt has a relatively small eye diameter and is usually specified with shackles.

Reduction Factors

When using Collared eyebolts at an inclined angle a reduction factor must be used to ensure that the eyebolts are not overloaded.

See table below

BS4278 table 1 Metric Collared Eyebolts
SWL [t]	A mm	B mm	D mm	E mm	F mm	G mm	H mm
0.10	6	22	7	15	9	20	18
0.15	8	22	7	15	9	20	18
0.25	10	22	7	15	9	20	18
0.40	12	22	7	15	9	20	18
0.50	14	29	10	20	12	26	23
0.80	16	29	10	20	12	26	23
1.00	18	36	12	24	14	32	28
1.60	20	40	14	27	16	36	32
1.60	22	45	14	30	17	40	35
2.50	24	52	17	35	21	46	40
4.00	30	65	22	44	26	58	51
4.00	33	72	24	48	28	64	56
6.30	36	81	27	54	32	72	63
6.30	39	86	29	57	33	-	67
8.00	42	101	34	68	40	-	79
8.00	45	101	34	68	40	-	79
10.00	48	101	34	68	40	-	79
12.50	52	115	38	76	46	-	89
16.00	56	128	43	86	51	-	100
20.00	64	144	48	96	58	-	112

BS4278 table 4 Imperial Collared Eyebolts
SWL [t]	A [in]	B mm	D mm	E mm	F mm	G mm	H mm
0.10	1/4	22	7	15	9	20	18
0.15	5/16	22	7	15	9	20	18
0.25	3/8	22	7	15	9	20	18
0.50	1/2	29	10	20	12	26	23
0.90	5/8	36	12	24	14	32	28
1.40	3/4	45	14	30	17	40	35
2.00	7/8	52	17	35	21	46	40
2.75	1	58	20	39	23	52	46
3.50	1.1/8	65	22	44	26	58	51
4.50	1.1/4	72	24	48	29	64	56
6.50	1.1/2	81	27	57	33	-	67
9.00	1.3/4	101	34	68	40	-	79
12.00	2	115	38	76	46	-	89
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-	-	-	-	-	-	-	-
-	-	-	-	-	-	-	-
-	-	-	-	-	-	-	-
-	-	-	-	-	-	-	-
-	-	-	-	-	-	-	-
-	-	-	-	-	-	-	-

Maximum recommended SWL for BS 4278 Collared eyebolts (Metric and Imperial) when used in pairs for inclined working conditions
SWL Single Eyebolt	0>30 degrees (Pair)	30>60 degrees (Pair)	60>90 degrees (Pair)
0.25t	0.32t	0.20t	0.13t
0.40t	0.50t	0.32t	0.20t
0.50t	0.63t	0.40t	0.25t
0.80t	1.00t	0.64t	0.40t
0.90t	1.13t	0.72t	0.45t
1.00t	1.30t	0.80t	0.50t
1.25t	1.60t	1.00t	0.63t
1.40t	1.76t	1.12t	070t
1.60t	2.00t	1.25t	0.80t
2.00t	2.50t	1.60t	1.00t
2.50t	3.20t	2.00t	1.25t
2.75t	3.47t	2.20t	1.38t
3.20t	4.00t	2.50t	1.60t
3.50t	4.41t	2.80t	1.75t
4.00t	5.00t	3.20t	2.00t

For further information please contact our sales team on 01604 751146 or CLICK HERE to email your enquiry.


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