BS4278 - Dynamo Eyebolts

Leading UK Manufacturer of BS 4278 Dynamo Eyebolts.

We specialise in the precision manufacture and supply of high-integrity BS 4278 dynamo eyebolts, engineered to provide safe, reliable vertical lifting and anchoring points for heavy industrial plant and machinery.

Utilising advanced closed-die drop forging and upset forging processes, we compress and align the material's grain flow along the contours of the component, delivering elite tensile strength, ductility, and fatigue resistance compared to machined or cast alternatives. Featuring an enlarged internal eye profile for greater rigging clearance, we provide a complete, certified manufacturing solution.

Please note that Dynamo Eyebolts to Table 3 & 6 below are for vertical lifts only.
Angle lifts must use Table 1.

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A	B	D	E	F	G	H	SWL Vertical Only	Weight Each
mm	mm	mm	mm	mm	mm	mm	Tonnes	kgs
M12	17	5	22	9	27	18	0.32	0.08
M16	23	6	29	11	34	23	0.63	0.14
M20	32	9	40	15	47	32	1.25	0.40
M24	40	12	51	19	60	40	2.00	0.78
M30	51	14	64	24	76	51	3.20	1.78
M36	63	18	79	30	95	63	5.00	2.44
M42	70	20	88	33	105	70	6.30	4.10
M48	79	22	99	37	118	79	8.00	7.70
M52	89	26	112	42	134	89	10.00	10.00

A	B	D	E	F	G	H	SWL Vertical Only	Weight Each
Inches	mm	mm	mm	mm	mm	mm	Tonnes	kgs
3/8	17	5	22	9	27	18	0.25	0.08
1/2	23	6	29	11	34	23	0.50	0.08
5/8	28	8	35	14	42	28	0.90	0.14
3/4	32	9	40	15	47	32	1.25	0.40
7/8	35	10	44	17	53	35	1.60	0.60
1	40	12	51	19	60	40	2.00	0.78
1. 1/4	51	14	64	24	76	51	3.20	1.90
1. 1/2	63	18	79	30	95	63	5.00	2.44
1. 3/4	79	22	99	37	118	79	8.00	7.70
2	89	26	112	42	134	89	10.00	10.00