Hook to Hook - Turnbuckle System

Leading UK Supplier of Hook-to-Hook Turnbuckles.

We specialise in the precision manufacture and supply of high-integrity Hook-to-Hook Turnbuckles (Rigging Screws), engineered as an efficient tensioning and adjustment component for non-permanent rigging, light structural bracing, and utility applications.

Designed with open hooks on both extremities, our turnbuckles allow for rapid connection and disconnection while offering precise length and tension adjustment within assembly lines.

Utilising advanced in-house hot forging, thread rolling, machining, and assembly cells, we ensure consistent structural performance, optimal material grain flow, and precise thread tolerances across every production run.

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A	Take Up	B	C	D	E	F	G	SWL	Weight Each
Thread Size	inches	mm (min)	mm (max)	mm	mm	mm	mm	Tonnes	kgs
3/8	6	302	416	10	15	14	58	0.45	0.32
1/2	6	338	452	13	19	17	72	0.68	0.66
1/2	9	414	585	13	19	17	72	0.68	0.76
1/2	12	490	719	13	19	17	72	0.68	0.91
5/8	6	394	508	16	23	22	90	1.02	1.07
5/8	9	470	641	16	23	22	90	1.02	1.31
5/8	12	546	775	16	23	22	90	1.02	1.71
5/8	18	701	1150	16	23	22	90	1.02	1.86
3/4	6	432	546	20	27	25	98	1.36	1.65
3/4	9	508	679	20	27	25	98	1.36	1.95
3/4	12	584	813	20	27	25	98	1.36	2.30
3/4	18	737	1080	20	27	25	98	1.36	2.85
7/8	12	625	854	23	30	29	126	1.81	3.33
7/8	18	778	1121	23	30	29	126	1.81	4.24
1	6	524	638	23	35	32	144	2.27	3.87
1	12	676	905	25	35	32	144	2.27	5.09
1	18	829	1172	25	35	32	144	2.27	6.00
1	24	980	1437	25	35	32	144	2.27	7.52
1. 1/4	12	760	989	28	37	39	175	3.51	8.12
1. 1/4	18	912	1255	28	37	39	175	3.51	10.40
1. 1/4	24	1064	1521	28	37	39	175	3.51	12.10
1. 1/2	12	823	1052	33	44	47	212	3.4	12.70
1. 1/2	18	975	1318	33	44	47	212	3.4	15.10
1. 1/2	24	1128	1585	33	44	47	212	3.4	17.10