Hot-dipped galvanized technology protects the steel underneath from further corrosion. Hot-dip galvanized anchor protected self-drilling anchor bolt used in underground construction, because the self-drilling anchor bolts are usually made of steel, they are susceptible to corrosion. In this context, the self-drilling anchor bolt requires a structural design suitable for protection from corrosion.
The hot-dipped galvanized coating is excellent for use in moist atmospheres where more rust resistance is required than the standard zinc plated wedge anchors can provide. Ensure the service life of the anchor rod.
Hot-dip galvanized self-drilling anchor bolt
Galvanized self-drilling anchor system / full threaded steel self-drilling rock bolt / hollow anchor bar / anchor rods.
In order to reduce the corrosion rate and thus increasing the service life, SINODRILLS offer hot-dip galvanized systems. A complete hot-dip galvanized system is usually including hollow bar, coupler, nut and plate. All hot-dip galvanized items confirm to following standards:
Hot-dip galvanized zinc coating thickness ( μm )
Hot-dip galvanizing standard
≥70
ISO 1461
Size
T30-11
T30-14
T30-16
T40-16
T40-20
T52-26
T73-56
T73-53
T73-45
T103-78
T103-51
Thread direction: Left hand / Right hand
Thread standard: ISO10280 / ISO1720 / Other international standards
SINODRILLS Galvanized Self drilling anchor bolt Parameters for T Thread
O.D (mm)
I.D (mm)
Ultimate Load (kN)
Yield Load (kN)
Weight (kg/meter)
30.0
11.0
320
260
3.3
30.0
14.0
275
220
2.9
30.0
16.0
245
190
2.7
40.0
16.0
660
525
7.1
40.0
20.0
540
425
5.6
52.0
26.0
930
730
10
73.0
56.0
1035
830
10.8
73.0
53.0
1160
970
14
73.0
45.0
1600
1270
17.5
103.0
78.0
2270
1800
25
103.0
51.0
3660
2670
44
SINODRILLS Galvanized Self drilling anchor bolt Parameters for R Thread
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Size
|
O.D (mm) | I.D (mm) | Ultimate Load (kN) | Yield Load (kN) | Weight (kg/meter) |
R25N-14
|
25.0 | 14.0 | 200 | 150 | 2.3 |
R32L-22
|
32.0 | 22.0 | 210 | 160 | 2.8 |
R32N-21
|
32.0 | 21.0 | 280 | 230 | 2.9 |
R32N-18.5
|
32.0 | 18.5 | 280 | 230 | 3.4 |
R32S-17.5
|
32.0 | 17.5 | 360 | 280 | 3.5 |
R32S-15
|
32.0 | 15.0 | 360 | 280 | 4.1 |
R32SS-14
|
32.0 | 14.0 | 405 | 350 | 4.3 |
R38N-21
|
38.0 | 21.0 | 500 | 400 | 4.8 |
R38N-19
|
38.0 | 19.0 | 500 | 400 | 5.5 |
R38S-18
|
38.0 | 18.0 | 560 | 460 | 6.0 |
R51L-38
|
51.0 | 38.0 | 550 | 450 | 6.0 |
R51L-36
|
51.0 | 36.0 | 550 | 450 | 7.6 |
R51N-36
|
51.0 | 36.0 | 800 | 630 | 7.6 |
R51N-33
|
51.0 | 33.0 | 800 | 630 | 8.4 |
R51S-30
|
51.0 | 30.0 | 930 | 730 | 9.4 |
T76N-49
|
76.0 | 49.0 | 1600 | 1200 | 16.5 |
T76S-45
|
76.0 | 45.0 | 1900 | 1500 | 19 |
Thread direction: Left hand / Right hand
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Thread standsrd: ISO 10208 / ISO1720 / Other international standards |