Product
World's leading self drilling anchor bolt manufacturer.
R Thread Self Drilling Anchor
Introduction:
R thread self drilling anchor bolt adopts wave-thread hollow bar, which has great anchoring effect and can be cut according to demands. Sinorock® also produces large-diameter self drilling anchor bar by adopting advanced equipment and technology.
Feature:
1. Safe, reliable, and time saving.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.
2. Simple installation & operation.
3. Choice of drill bits for different ground conditions.
4. Grouting works synchronize with drilling or after drilling. Grout can fill fractures effectively.
5. Anchor bars can be cut and lengthened on request, applying to narrow spaces.
6. It provides higher bonding stress than smooth steel pipe depending on continuous wave thread.
Technical data:
- R25
- R32
- R38
- R51
| Size | Outer Dia. (mm) |
Inner Dia. (mm) |
Ultimate Load (kN) |
Yield Load (kN) |
Weight (Kg/m) |
| SER25/12 | 25 | 12 | 200 | 150 | 2.35 |
Accessories
Coupler
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
Note |
| SSR25 | 36 | 150 | 0.66 | With sealing structure |
| SER25 | 36 | 150 | 0.66 | Without sealing structure |
Hex Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR25 | 41 | 30 | 0.20 | 25-30 |
Domed Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER25 | 150×150 | 8 | 30 | 1.40 |
| 150×150 | 5 | 28 | 0.85 | |
| 200×200 | 8 | 32 | 3.20 |
Drill Bit
| Size | Outer Dia. (mm) |
Weight (Kg/pc) |
Application Range (Advice) | ||
| EX | Sand, fills, gravel | ||||
| SSR25/42 | 42 | 0.25 | |||
| SSR25/51 | 51 | 0.31 | |||
| EXX | Softer sedimentary rocks such as marls, mudstones, siltstone | ||||
| SSR25/42 | 42 | 0.29 | |||
| ES-F | Gravel, soft rock | ||||
| SSR25/42 | 42 | 0.29 | |||
| SSR25/51 | 57.5 | 0.33 | |||
| ESS-F | Weathered rock, stone walls, rubble | ||||
| SSR25/42 | 42 | 0.30 | |||
| SSR25/51 | 51 | 0.53 | |||
| EYY | Competent ground, strong rock | ||||
| SSR25/51 | 51 | 0.36 | |||
Drill Bit Adapter
| Size | Anchor Bar Thread | Drill Bit Thread | Length (mm) |
Weight (Kg/pc) |
| SSR25/R32 | R25 | R32 | 50 | 0.10 |
| Size | Outer Dia. (mm) |
Inner Dia. (mm) |
Ultimate Load (kN) |
Yield Load (kN) |
Weight (Kg/m) |
| SSR32/20 | 32 | 20 | 210 | 160 | 2.83 |
| SSR32/17 | 32 | 17 | 280 | 230 | 3.50 |
| SSR32/15 | 32 | 15 | 360 | 280 | 4.00 |
| SER32/21 | 32 | 21 | 210 | 160 | 2.60 |
| SER32/19 | 32 | 19 | 280 | 230 | 2.95 |
| SER32/17 | 32 | 17 | 360 | 280 | 3.50 |
| SER32/15 | 32 | 15 | 405 | 320 | 4.00 |
| SCR32/21 | 32 | 21 | 250 | 190 | 2.60 |
| SCR32/20 | 32 | 20 | 280 | 230 | 2.83 |
| SCR32/17.5 | 32 | 17.5 | 360 | 280 | 3.40 |
Accessories
Coupler
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
Note |
| SSR32 | 42 | 145 | 0.79 | With sealing structure |
| 42 | 160 | 0.86 | ||
| 42 | 190 | 1.00 | ||
| SER32 | 42 | 145 | 0.77 | Without sealing structure |
| 42 | 160 | 0.84 | ||
| 42 | 190 | 1.00 |
Hex Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR32 | 46 | 45 | 0.37 | 25-30 |
| 46 | 55 | 0.46 | ||
| 46 | 60 | 0.47 |
Hemispherical Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR32 | 46 | 45 | 0.38 | 25-30 |
Domed Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER32 | 150×150 | 8 | 35 | 1.30 |
| 150×150 | 5 | 35 | 0.85 | |
| 150×150 | 6 | 35 | 1.00 | |
| 150×150 | 10 | 35 | 1.70 | |
| 175×175 | 8 | 35 | 1.90 | |
| 200×200 | 8 | 35 | 2.60 | |
| 200×200 | 10 | 35 | 3.52 | |
| 200×200 | 12 | 35 | 2.94 |
Flat Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER32 | 95×95 | 25 | 35 | 1.60 |
| 120×120 | 30 | 35 | 3.20 | |
| 150×150 | 8 | 35 | 1.30 | |
| 200×200 | 10 | 35 | 3.06 |
Centralizer
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
| SER32 | 72 | 30 | 0.27 |
Drill Bit
| Size | Outer Dia. (mm) |
Weight (Kg/pc) |
Application Range (Advice) | ||
| EX | Sand, fills, gravel | ||||
| SSR32/51 | 51 | 0.31 | |||
| 51 | 0.35 | ||||
| SSR32/76 | 76 | 0.79 | |||
| EX(Venturi) | |||||
| SSR32/64 | 64 | 0.57 | |||
| SSR32/76 | 76 | 0.80 | |||
| EXX | Softer sedimentary rocks such as marls, mudstones, siltstone | ||||
| SSR32/42 | 42 | 0.25 | |||
| SSR32/51 | 51 | 0.40 | |||
| SSR32/64 | 64 | 0.71 | |||
| SSR32/76 | 76 | 1.14 | |||
| EXX(Venturi) | |||||
| SSR32/76 | 76 | 1.10 | |||
| Clay Bit | Clay, soft soil, marls, loose sand or gravel | ||||
| SSR32/76 | 76 | 0.54 | |||
| SSR32/90 | 90 | 0.68 | |||
| SSR32/100 | 100 | 1.06 | |||
| SSR32/110 | 110 | 1.30 | |||
| ES-F | Gravel, soft rock | ||||
| SSR32/42 | 42 | 0.24 | |||
| SSR32/51 | 51 | 0.45 | |||
| SSR32/64 | 64 | 0.70 | |||
| SSR32/76 | 76 | 1.00 | |||
| ESS-F | Weathered rock, stone walls, rubble | ||||
| SSR32/51 | 51 | 0.45 | |||
| SSR32/64 | 64 | 0.72 | |||
| SSR32/76 | 76 | 1.22 | |||
| EYY | Competent ground, strong rock | ||||
| SSR32/51 | 51 | 0.40 | |||
| SSR32/76 | 76 | 0.74 | |||
| EY | Chalk, gravel | ||||
| SSR32/51 | 51 | 0.34 | |||
| SSR32/76 | 76 | 0.71 | |||
| EC | Chalks, marls, fills, competent ground | ||||
| SSR32/51 | 51 | 0.33 | |||
| ECC | Chalks, marls, fills, competent ground | ||||
| SSR32/51 | 51 | 0.37 | |||
Drill Bit Adapter
| Size | Anchor Bar Thread | Drill Bit Thread | Length (mm) |
Weight (Kg/pc) |
| SSR32/R38 | R32 | R38 | 50 | 0.13 |
| SSR32/R51 | R32 | R51 | 68 | 0.62 |
| SSR32/T40 | R32 | T40 | 50 | 0.18 |
| Size | Outer Dia. (mm) |
Inner Dia. (mm) |
Ultimate Load (kN) |
Yield Load (kN) |
Weight (Kg/m) |
| SSR38/20 | 38 | 20 | 500 | 400 | 5.50 |
| SER38/22 | 38 | 22 | 500 | 400 | 4.95 |
| SER38/18 | 38 | 18 | 550 | 430 | 6.00 |
| SCR38/22.5 | 38 | 22.5 | 500 | 400 | 4.80 |
| SCR38/21 | 38 | 21 | 500 | 400 | 5.25 |
Accessories
Coupler
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
Note |
| SSR38 | 51 | 180 | 1.33 | With sealing structure |
| 51 | 200 | 1.50 | ||
| 51 | 220 | 1.67 | ||
| SER38 | 51 | 180 | 1.38 | Without sealing structure |
| 51 | 200 | 1.55 | ||
| 51 | 220 | 1.68 |
Hex Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR38 | 50 | 60 | 1.47 | 25-30 |
Hemispherical Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR38 | 52 | 60 | 0.61 | 25-30 |
Domed Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER38 | 150×150 | 8 | 41 | 3.60 |
| 200×200 | 12 | 41 | 1.38 |
Flat Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER38 | 140×140 | 35 | 41 | 5.00 |
| 150×150 | 25 | 41 | 4.10 | |
| 200×200 | 12 | 41 | 3.67 |
Centralizer
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
| SER38 | 78 | 30 | 0.28 |
Drill Bit
| Size | Outer Dia. (mm) |
Weight (Kg/pc) |
Application Range (Advice) | ||
| EX | Sand, fills, gravel | ||||
| SSR38/76 | 76 | 1.04 | |||
| SSR38/90 | 90 | 1.27 | |||
| SSR38/100 | 100 | 1.42 | |||
| EX(Venturi) | |||||
| SSR38/76 | 76 | 0.81 | |||
| SSR38/90 | 90 | 1.20 | |||
| EXX | Softer sedimentary rocks such as marls, mudstones, siltstone | ||||
| SSR38/76 | 76 | 0.95 | |||
| SSR38/90 | 90 | 2.05 | |||
| SSR38/100 | 100 | 2.31 | |||
| SSR38/115 | 115 | 2.66 | |||
| SSR38/130 | 130 | 5.00 | |||
| EXX(Venturi) | |||||
| SSR38/56 | 56 | 0.68 | |||
| SSR38/76 | 76 | 1.28 | |||
| SSR38/90 | 90 | 2.16 | |||
| Clay Bit | Clay, soft soil, marls, loose sand or gravel | ||||
| SSR38/90 | 90 | 1.00 | |||
| SSR38/100 | 100 | 1.16 | |||
| SSR38/110 | 110 | 1.15 | |||
| SSR38/130 | 130 | 1.40 | |||
| SSR38/150 | 150 | 2.40 | |||
| ES-F | Gravel, soft rock | ||||
| SSR38/76 | 76 | 1.07 | |||
| SSR38/90 | 90 | 1.31 | |||
| SSR38/115 | 115 | 2.50 | |||
| ESS-F | Weathered rock, stone walls, rubble | ||||
| SSR38/76 | 76 | 1.31 | |||
| SSR38/90 | 90 | 2.33 | |||
| SSR38/115 | 115 | 3.75 | |||
| EYY | Competent ground, strong rock | ||||
| SSR38/76 | 76 | 1.10 | |||
| SSR38/90 | 90 | 1.36 | |||
| EY | Competent ground, strong rock | ||||
| SSR38/76 | 76 | 0.87 | |||
| SSR38/90 | 90 | 1.20 | |||
| EC | Chalks, marls, fills, competent ground | ||||
| SSR38/76 | 76 | 1.10 | |||
| ECC | Chalks, marls, fills, competent ground | ||||
| SSR38/76 | 76 | 1.10 | |||
| XX | Sand, clay, fills, gravel | ||||
| SSR38/110 | 110 | 1.40 | |||
| SSR38/130 | 130 | 1.52 | |||
| SSR38/150 | 150 | 1.85 | |||
| ESS-D | Weathered rock, stone walls, rubble | ||||
| SSR38/100 | 100 | 2.16 | |||
| SSR38/115 | 115 | 2.70 | |||
Drill Bit Adapter
| Size | Anchor Bar Thread | Drill Bit Thread | Length (mm) |
Weight (Kg/pc) |
| SSR38/R51 | R38 | R51 | 68 | 0.43 |
| Size | Outer Dia. (mm) |
Inner Dia. (mm) |
Ultimate Load (kN) |
Yield Load (kN) |
Weight (Kg/m) |
| SSR51/34 | 51 | 34 | 580 | 450 | 6.95 |
| SSR51/29 | 51 | 29 | 800 | 630 | 9.00 |
| SER51/36 | 51 | 36 | 550 | 430 | 6.15 |
| SER51/35 | 51 | 35 | 580 | 450 | 6.40 |
| SER51/31 | 51 | 31 | 800 | 630 | 8.20 |
| SCR51/33 | 51 | 33 | 800 | 630 | 8.00 |
Accessories
Coupler
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
Note |
| SSR51 | 63 | 200 | 1.85 | With sealing structure |
| 63 | 220 | 2.00 | ||
| SER51 | 63 | 200 | 1.84 | With sealing structure |
| 63 | 220 | 2.13 |
Hex Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR51 | 75 | 70 | 1.53 | 25-30 |
| 75 | 80 | 1.84 |
Hemispherical Nut
| Size | Key Size (mm) |
Length (mm) |
Weight (Kg/pc) |
Hardness (HRC) |
| SSR51 | 75 | 70 | 1.60 | 25-30 |
| 75 | 80 | 1.92 | 30-35 |
Domed Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER51 | 200×200 | 15 | 55 | 4.70 |
Flat Plate
| Size | Dimensions (mm) |
Thickness (mm) |
Hole Dia. (mm) |
Weight (Kg/pc) |
| SER51 | 150×150 | 40 | 56 | 6.20 |
| 180×180 | 45 | 56 | 10.50 | |
| 200×200 | 30 | 60 | 8.72 | |
| 250×250 | 40 | 60 | 18.90 |
Centralizer
| Size | Outer Dia. (mm) |
Length (mm) |
Weight (Kg/pc) |
| SER51 | 91 | 30 | 0.30 |
Drill Bit
| Size | Outer Dia. (mm) |
Weight (Kg/pc) |
Application Range (Advice) | ||
| EX | Sand, fills, gravel | ||||
| SSR51/100 | 100 | 1.67 | |||
| SSR51/110 | 110 | 2.05 | |||
| SSR51/115 | 115 | 2.06 | |||
| SSR51/130 | 130 | 3.94 | |||
| SSR51/150 | 150 | 4.00 | |||
| SSR51/90 | 90 | 1.62 | |||
| EXX | Softer sedimentary rocks such as marls, mudstones, siltstone | ||||
| SSR51/76 | 76 | 1.40 | |||
| SSR51/90 | 90 | 1.98 | |||
| SSR51/100 | 100 | 2.23 | |||
| SSR51/110 | 110 | 3.20 | |||
| SSR51/115 | 115 | 3.08 | |||
| SSR51/130 | 130 | 4.40 | |||
| SSR51/150 | 150 | 6.12 | |||
| EXX(Venturi) | |||||
| SSR51/115 | 115 | 2.87 | |||
| SSR51/140 | 140 | 6.00 | |||
| Clay Bit | Clay, soft soil, marls, loose sand or gravel | ||||
| SSR51/76 | 76 | 0.95 | |||
| SSR51/90 | 90 | 1.00 | |||
| SSR51/115 | 115 | 1.38 | |||
| SSR51/130 | 130 | 2.20 | |||
| SSR51/150 | 150 | 2.56 | |||
| SSR51/175 | 175 | 2.60 | |||
| ES-F | Gravel, soft rock | ||||
| SSR51/76 | 76 | 0.81 | |||
| SSR51/100 | 100 | 1.50 | |||
| SSR51/115 | 115 | 2.00 | |||
| SSR51/130 | 130 | 2.92 | |||
| ESS-F | Weathered rock, stone walls, rubble | ||||
| SSR51/76 | 76 | 1.52 | |||
| SSR51/100 | 100 | 2.60 | |||
| SSR51/110 | 110 | 2.90 | |||
| SSR51/115 | 115 | 3.85 | |||
| SSR51/130 | 130 | 4.30 | |||
| SSR51/150 | 150 | 6.44 | |||
| EY | Chalk, gravel | ||||
| SSR51/76 | 76 | 1.03 | |||
| EC | Chalks, marls, fills, competent ground | ||||
| SSR51/115 | 115 | 1.97 | |||
| XX | Sand, clay, fills, gravel | ||||
| SSR51/130 | 130 | 2.10 | |||
| SSR51/150 | 150 | 2.30 | |||
| SSR51/170 | 170 | 2.70 | |||
| SSR51/200 | 200 | 2.90 | |||
| ES-D | Gravel, soft rock | ||||
| SSR51/115 | 115 | 2.13 | |||
| ESS-D | Weathered rock, stone walls, rubble | ||||
| SSR51/115 | 115 | 2.10 | |||
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