HOOK & HOOK TURNBUCKLES - BTHH-158

		Hot Dip galvanized steel. End fittings are Quenched and Tempered / bodies heat treated by normalizing. Hooks are forged with a greater cross sectional area that results in a stronger hook with better fatigue properties. Lock Nuts available for all sizes BTHH-158 Hook & Hook Turnbuckle meets the performance of Federal Specifications FF-T-791b, Type 1, Form 1 - Class VI and ASTM F-1145. TURNBUCKLES RECOMMENDED FOR STRAIGHT OR IN-LINE PULL ONLY
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Thread Diameter & Take Up (In)	Thread Diameter &Take Up (mm)	BTHH Item No.	Working Load Limit(t)*	Weight Each (kg)	Dimensions (mm)
					B	A	S	H	P open	I closed	N open	T closed	E
1/4 x 4	6.35 x 102	15801	0.18	0.14	6.35	11.4	40.4	32.3	282	181	303	202	101
5/16 x 4.1/2	7.94 x 114	15802	0.32	0.21	7.85	12.7	49.3	38.1	325	211	351	236	114
3/8 x 6	9.53 x 152	15803	0.45	0.35	9.65	14.2	58.0	45.0	419	267	450	298	152
1/2 x 6	12.7 x 152	15804	0.68	0.73	12.7	16.8	74.5	58.0	478	300	518	340	152
1/2 x 12	12.7 x 305	15805	0.68	1.03	12.7	16.8	74.5	58.0	783	453	822	492	304
5/8 x 6	15.9 x 152	15806	1.02	1.25	16.0	18.9	93.5	71.5	521	337	572	387	152
5/8 x 12	15.9 x 305	15807	1.02	1.59	16.9	18.9	93.5	71.5	826	489	876	540	304
3/4 x 6	19.1 x 152	15808	1.36	1.76	19.1	24.9	115	84.5	568	378	629	439	152
3/4 x 12	19.1 x 305	15809	1.36	2.64	19.1	24.9	115	84.5	873	530	934	591	304
3/4 x 18	19.1 x 457	15810	1.36	3.68	19.1	24.9	115	84.5	878	683	1239	744	457
7/8 x 12	22.2 x 305	15811	1.81	3.67	22.4	28.7	132	96.0	914	565	984	635	304
1 x 12	25.4 x 305	15812	2.27	5.41	25.4	31.8	148	108	956	600	1034	678	304
1 x 18	25.4 x 457	15813	2.27	6.35	25.4	31.8	148	108	1261	753	1338	830	457
1 x 24	25.4 x 610	15814	2.27	7.82	25.4	31.8	148	108	1565	905	1643	983	609
1-1/4 x 12	31.8 x 305	15815	2.95	8.62	31.8	38.1	183	130	1027	659	1119	751	304
1-1/4 x 18	31.8 x 457	15816	2.95	9.33	31.8	38.1	183	130	1332	811	1424	903	457
1-1/4 x 24	31.8 x 610	15817	2.95	10.4	31.8	38.1	183	130	1637	964	1729	1056	609
1-1/2 x 12	38.1 x 305	15818	3.40	12.2	38.1	47.8	212	146	1116	735	1205	824	304
1-1/2 x 18	38.1 x 457	15819	3.40	14.1	38.1	47.8	212	146	1421	887	1510	976	457
1-1/2 x 24	38.1 x 610	15820	3.40	17.0	38.1	47.8	212	146	1726	1040	1815	1129	609

* Proof Load is 2.5 times the Working Load Limit. Ultimate load is 5 times the Working Load Limit