Hot-Dip Galvanized Self Drilling Anchor Bolt

The Self Drilling Anchor system is comprised of a hollow threaded anchor bar with a sacrificial drill bit that performs drilling, anchoring and grouting in a single operation. Self-drilling anchor system is mainly used in slope stabilization, tunneling pre-support, foundations with micro piles etc. projects.

Thread Size: R25, R32, R38, R51, T76, T30, T40, T52, T73, T103

Thread Direction: Left hand / Right hand

Thread Standard: ISO 10208 / ISO 1720 / other international standards

Size		O.D	I.D	Sectional Area	Ultimate Load	Yield Load	Agt (%)	Weight
		(mm)	(mm)	(mm²)	(Kn)	(Kn)		(kg/meter)
R25	R25N-14	25.0	14.0	290	200	150	＞10%	2.30
R32	R32L-22	32.0	22.0	350	210	160	＞10%	2.80
	R32N-21	32.0	21.0	370	280	230	＞6%	2.90
	R32N-18.5	32.0	18.5	430	280	230	＞10%	3.40
	R32S-17.5	32.0	17.5	440	360	280	＞6%	3.50
	R32S-15	32.0	15.0	520	360	280	＞10%	4.10
	R32SS-14	32.0	14.0	520	405	350	＞10%	4.10
R38	R38N-21	38.0	21.0	620	500	400	＞6%	4.90
	R38N-19	38.0	19.0	700	500	400	＞10%	5.50
	R38S-18	38.0	18.0	700	560	460	＞10%	5.50
R51	R51L-38	51.0	38.0	760	550	450	＞6%	6.00
	R51L-36	51.0	36.0	970	550	450	＞10%	7.60
	R51N-36	51.0	36.0	970	800	630	＞6%	7.60
	R51N-33	51.0	33.0	1070	800	630	＞10%	8.40
	R51S-30	51.0	30.0	1160	930	730	＞10%	9.10
T76	T76N-49	76.0	49.0	2100	1600	1200	＞6%	16.5
	T76S-45	76.0	45.0	2420	1900	1500	＞6%	19.0
T30	T30-11	30.0	11.0	420	320	260	＞10%	3.30
	T30-14	30.0	14.0	370	275	220	＞10%	2.90
	T30-16	30.0	16.0	340	245	190	＞10%	2.70
T40	T40-16	40.0	16.0	900	660	525	＞10%	7.10
	T40-20	40.0	20.0	710	540	425	＞10%	5.60
T52	T52-26	52.0	26.0	1270	930	730	＞10%	10.0
T73	T73-56	73.0	56.0	1380	1035	830	＞6%	10.8
	T73-53	73.0	53.0	1780	1160	970	＞6%	14.0
	T73-45	73.0	45.0	2230	1600	1270	＞6%	17.5
	T73-35	73.0	35.0	2700	1865	1430	＞6%	21.2
T103	T103-78	103.0	78.0	3180	2270	1800	＞6%	25.0
	T103-51	103.0	51.0	5600	3660	2670	＞6%	44.0

No casings required, because anchor bars can be drilled into loose soils without needing casings to support the boreholes.

Fast drilling and installation, because drilling, installation and grouting are in a single operation.

Both rope threads and trapezoid threads are robust and ideal for rotary-percussive drilling and ensuring a high level of bond with the borehole gout.

The hollow core not only serves for flushing during drilling, but also for grouting after drilling.

Continuous threads ensure the bars can be cut and coupled at any point, or extended.

Different anchor bits are available for different ground conditions.

Q: What kinds of self-drilling anchor tools you can supply?

A: We are able to supply full series self-drilling anchor tools, such as anchor bolt, anchor bit, anchor coupler, anchor nuts and other anchor accessories.

Q: Where is your factory located?

A: We are located in the city of Wuxue, Hubei, China.

Q: Where is your product use in?

A: The self-drilling anchor system usually used in slop stabilizations, tunneling per-support, foundations with micro-piles, railway system, metro project etc.

Q: Are there the products tested before shipping?

A: Yes, each of our products will be strictly tested in accordance with international standards before delivery.

Q: Do you have a discount for large orders?

A: Yes we could offer different discount according to your order quantity

Q: Can you provide drawings and technical data?

A: Yes, our RD department will design and provide drawings and technical data.

http://www.chinarockbolt.com/