Good Quality Mining Rock Bolts - Coupler – Cathay

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We keep on with our enterprise spirit of "Quality, Efficiency, Innovation and Integrity". We intention to create extra worth for our buyers with our prosperous resources, superior machinery, experienced workers and superb services for Black Nut , Anchoring System Thread Bar , Full Threaded Bar , Our merchandise are widely recognized and trusted by users and can meet up with continuously changing economic and social needs.

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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Innovation, quality and reliability are the core values of our company. These principles today more than ever form the basis of our success as an internationally active mid-size company for Good Quality Mining Rock Bolts - Coupler – Cathay, The product will supply to all over the world, such as: Cyprus , Sevilla , Florence , Look forward to the future, we will focus more on the brand building and promotion . And in the process of our brand global strategic layout we welcome more and more partners join us, work together with us based on mutual benefit. Let's develop market by fully utilizing our comprehensive advantages and strive for building.

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