Self drilling anchor bolts: self-drilling rock anchoring/rock bolt/anchor plate factory from China: R22, R25, R32, R38, R51 rock bit, nuts, couplings, drill rod etc.

1. Self Drilling Anchor Bolt.

2. Material:seamless steel pipe 40Cr/EN40Cr.

3. Left thread.

4. ISO9001&CE.

Applications:

Tunnelling ground engineering;

Radial bolting,slope stabilization,forepoling,micro injection pile,face stabilization,temporary support anchor,portal preparation,soil nailing.

Welcome to visit our factory in China, and expecting to establish long terms cooperations with you!

Specification	R25N	R32L	R32N	R32/18.5	R32S	R32SS	R38N	R38/19	R51L	R51N	T76N	T76S
Outside diameter (mm)	25	32	32	32	32	32	38	38	51	51	76	76
Internal diameter, average(mm)	14	22	21	18.5	17	15.5	21	19	36	33	52	45
External diameter, effective(mm)	22.5	29.1	29.1	29.1	29.1	29.1	35.7	35.7	47.8	47.8	71	71
Ultimate load capacity (KN)	200	260	280	280	360	405	500	500	550	800	1600	1900
Yield load capacity (KN)	150	200	230	230	280	350	400	400	450	630	1200	1500
Tensile strength, Rm(N/mm2)	800	800	800	800	800	800	800	800	800	800	800	800
Yield strength, Rp0, 2(N/mm2)	650	650	650	650	650	650	650	650	650	650	650	650
Weight (Kg/m)	2.3	2.8	2.9	3.4	3.4	3.6	4.8	5.5	6.0	7.6	16.5	19.0
Thread type (Left-hand)	ISO 10208								ISO 1720		MAI T76 standard
Steel grade	EN 10083-1

self drilling anchor bolt - rock bolt, rock anchor

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self drilling anchor bolt - rock bolt, rock anchor

self drilling anchor bolt

self drilling anchor bolts

self drilling anchores rockbolts