Good Quality Mining Rock Bolts - Coupler – Cathay

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Our workforce through professional training. Skilled professional knowledge, solid sense of service, to fulfill the services demands of consumers for Threaded Steel Bar, Bridge Construction Pt Bar, High Strength Thread Bar System, If you are looking for a good quality, fast delivery, best after service and good price supplier in China for long-term business relationship, we will be your best choice.

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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We are also focusing on improving the stuff management and QC system so that we could keep great advantage in the fiercely-competitive business for Good Quality Mining Rock Bolts - Coupler – Cathay, The product will supply to all over the world, such as: Barcelona, Kyrgyzstan, New Orleans, Our tenet is "integrity first, quality best". We have confidence in providing you with excellent service and ideal products. We sincerely hope we can establish win-win business cooperation with you in the future!

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