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For many years the use of steel reinforcement couplers to joint reinforcing bars has been regarded as a means of reducing the use of long bars. Engineers and contractors now recognize the benefits of using couplers to accelerate the speed of construction, increase productivity and simplify design details.
Specification
1. Rebar Diameter: 12-50mm
2. Materials: 45# carbon steel
3. Thread pitch: 1.75/2.5/3.0/4.0mm
4. Standard: Middle east, UK, Korea, Others according to customer request.
5. Higher tensile strength, lower cost
Rebar Coupler Types
1. Standard type;
2. Left-handed & right-handed type;
3. Transition type;
4. Nut-locking type;
5. Wide Mouth type.
Products & Services
1.Thread pitch:2.5mm-3.0mm
2.Thread angle:60 / 75
3. Specifications: D12mm-50mm.
4. Model: ordinary-type, forward-and-back forward-thread type and caliber-changed type,
5. Screw thread parameter
DIA12 thread pitch (mm) 1.75
DIA14-DIA22 thread pitch (mm) 2.5
DIA25-DIA40 thread pitch (mm) 3.0
DIA50 thread pitch (mm) 4.0
| Specification China standard | ||||
| Size | Thread | Length (mm) | Out Diameter (±0.5mm) | Inner Diameter MM |
| D16 | 2.5P | 38 | 24.3 | 14.28(0～+0.2) |
| D18 | 2.5P | 43 | 26.3 | 16(+0.1～+0.3) |
| D20 | 2.5P | 48 | 29.3 | 18(+0.1～+0.3) |
| D22 | 2.5P | 53 | 31.5 | 20(+0.1～+0.3) |
| D25 | 3.0P | 58 | 37 | 23(+0.15～+0.35) |
| D28 | 3.0P | 63 | 41 | 26(+0.15～+0.35) |
| D32 | 3.0P | 73 | 47 | 29.8(0～+0.2) |
| D36 | 3.0P | 83 | 52.2 | 33.8(0～+0.2) |
| D40 | 3.0P | 88 | 57.2 | 37.5(0～+0.2) |
| Specification vietnam standard | ||||
| Size | Thread | Length (mm) | Out Diameter (±0.5mm) | Inner Diameter |
| D22/20 | 2.5P | 50 (26+24) | 31 | 20.1/18.1(0.1～+0.3) |
| D25-22 | 3P/2.5P | 51 (35+26) | 38 | 22.8/20.1(0.1～+0.3) |
| D28-25 | 3p | 70 (36+34) | 42 | 26/22.8(0.1～+0.3) |
| D32-28 | 3P | 75 (40+35) | 48 | 29.6/26(0.1～+0.3) |
| D20 | 2.5 | 52 | 31 | 18.15(0.1～+0.3) |
| D22 | 2.5 | 55 | 35 | 20.1(0.1～+0.3) |
| D25 | 3P | 65 | 38 | 22.8(0.15～+0.35) |
| D28 | 3P | 70 | 42 | 26.0(0.15～+0.35) |
| D32 | 3P | 76 | 48 | 29.6(0～+0.2) |
| D40 | 3P | 90 | 60 | 37.5(0～+0.2) |
Specification Korea standard | ||||
(-)allowance of OD MUST NOT be accepted. | ||||
for example: 42.7mm of d29a must NOT be accepted.it must be over 43.0mm !!! | ||||
size | Out Diameter | Length | thread | Inner diameter |
d13a | 20 | 30 | M13 * 1.5P | 11.50~11.55 |
d16a | 24 | 38 | M16 * 2.0P | 14.10~14.15 |
d19a | 29 | 45 | M20 * 2.5P | 17.60~17.65 |
d19d | 48.5 | |||
d22a | 34 | 50 | M22.5 * 2.5P | 20.10~20.15 |
d22d | 53.5 | |||
d25a | 38.5 | 58 | M25.5 * 3.0P | 22.65~22.75 |
d25d | 62 | |||
d29a | 43 | 65 | M29.5 * 3.5P | 26.10~26.15 |
d29d | 69 | |||
d32a | 48 | 70 | M32.5 * 3.5P | 29.10~29.20 |
d32d | 74 | |||
d35a | 53 | 75 | M36 * 4.0P | 32.20~32.25 |
d35b | 88 | |||
