Good Quality Mining Rock Bolts - Coupler – Cathay

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Sticking to the principle of "Super Quality, Satisfactory service" ,We are striving to be a good business partner of you for High Tensile Solid Steel Bar , Screw Bar , M32 Hex Nut , We are going to wholeheartedly welcome all clientele during the industry both of those at your home and overseas to cooperate hand in hand, and build a bright potential together.

Good Quality Mining Rock Bolts - Coupler – Cathay Detail:

Couperls was designed to connect Threaded Steel Bars, to increase the length where

projects request.

Material: C45 and 40Cr

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"Based on domestic market and expand overseas business" is our development strategy for Good Quality Mining Rock Bolts - Coupler – Cathay, The product will supply to all over the world, such as: Russia , Vietnam , Victoria , Our products have enjoyed a great reputation for their good quality, competitive prices and prompt shipment in international market. Presently, we are sincerely looking forward to cooperating with more overseas customers based on mutual benefits.

continuous threaded bar

Nominal Diameter	Diameter		H	B	L	Nominal Section	Nominal Weight
Nominal Diameter	Dv	Dh	H	B	L	Nominal Section	Nominal Weight
mm	mm	mm	mm	mm	mm	mm2	kg/m
15	15	15	1.0	4.5	10	176	1.47
18	18	18	1.0	4.0	10	254.5	2.11
20	20	20	1.3	4.8	10	314	2.47
25	25	25	1.6	6.0	12	490.9	4.10
32	32	32	2.0	7.0	16	804.2	6.65
36	36	36	2.5	8.0	18	1018	8.41
40	40	40	3.0	8.0	20	1256.6	10.34
50	50	50	3.0	9.0	24	1963.5	16.28
60	60	60	3.0	10.0	22	2827	23.26
63.5	63	63.5	3.0	12.0	22	3167	26.20
65	65	65	3.0	12.0	22	3318	27.470
70	70	70	3.0	12.0	22	3848	31.8
75	75	75	3.0	12.0	22	4418	36.9

Grade500/630	NominalDia.	CrossSection	YieldStrength	TensileStrength	YieldLoad	UltimateLoad	Elongation	NominalWeight
	mm	mm2	>=Mpa	>=Mpa	KN	KN	A/%	KG/m
	20	314	500	630	157	198	10	2.47
	25	491	500	630	246	309	10	4.1
	28	615	500	630	308	387	10	4.83