Width across flats for hexagon nut, And Using Countries | ||
Width | 21 | United Kingdom and the Commonwealth of Nations |
Width | 22 | USA, Germany and some Eurupean countries |
Width | 23 | Australia |
Width | 19 | Japan, South Korea and some Southeast Asian countries |
| Bolt Dia. | Width across flats | Height | Width across flats | Height | Width across flats | Height |
Hexagon Nut | 1/2" | S21 | H11 | S22 | H11 | S23 | H11 |
Hexagon Nut |
| SF21 | H14 | SF22 | H14 | SF23 | H14 |
Hexagon Nut |
| SF21 | H19 | SF22 | H19 | SF23 | H119 |
Hexagon Nut |
| S21 | H15 |
|
|
|
|
Hexagon Nut | M14 | S22 | H11 | S23 | H11 |
|
|
Hexagon Nut |
| SF22 | H14 | SF23 | H14 |
|
|
Hexagon Nut |
| SF22 | H19 | SF23 | H119 |
|
|
Hexagon Nut | M12 | SF19 | H9 |
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|
|
|
Wing Nut | 1/2 |
|
|
|
|
|
|
Dia. | Effective length / Bolt length | Use | |
T-Bolt | 1/2 | 75-88 | United Kingdom and the Commonwealth of Nations |
M14 | 75-87 | USA, Germany and some Eurupean countries | |
M14 | 98-110 | USA, Germany and some Eurupean countries | |
Eye Bolt | 1/2 | 67-86 | United Kingdom and the Commonwealth of Nations |
M12 | 57-73 | United Kingdom and the Commonwealth of Nations | |
M14 | 70-90 | USA, Germany and some Eurupean countries | |
Spliting End Bolt | 1/2 | 45-82 | For Putlog coupler, BRC, etc. |
Carriage Bolt | 1/2 | 116-125 | For tube external clamp, universal clamp, etc. |
85-92 | |||
Hexagon Bolt | M16 | 72-80 | For Girder Coupler, DF Joint Pin |
Flat T-Bolt | 1/2 | 66-76 | For Italian couplers |
Thickness | Inner / Outer Dia. | |
Washer | 3.5 | 13-26 |
5 | 13-26 |
Double | Swivel Coupler | ||
48.3*34 | 48.3*34 | 34*34 | 34*38 |
48.3*38 | 48.3*38 | 38*38 | 38*42 |
48.3*42 | 48.3*42 | 42*42 | 42*60 |
48.3*48.3 | 48.3*48.3 | - | - |
48.3*60 | 48.3*60 | 60*60 | 60*76 |
48.3*76 | 48.3*76 | 76*76 | 86*89 |
- | 48.3*89 | 89*89 | - |
Summary of Results:
No. | Test Item | Test Method |
1 | Slipping Force | EN 74-1:2005 |
2 | Failure Force | EN 74-1:2005 |
Test Results:
Test Clause | Test Item | Test Requirement | Test Result | Conclusion |
7.2.1
|
Slipping force | △1≤7mm, Fs,5%≥10.0kN | △1=7mm, Fs,5%=15.88kN |
Pass
|
1mm≤△2≤2mm, Fs,5% ≥15.0kN | 1mm≤△2≤2mm, Fs,5%=15.91kN | |||
7.2.2 | Failure force | Ff,5%/γR2 ≥30.0kN | Ff,5%/γR2=50.63kN | Pass |
Drop Forged Swivel Coupler Class “B”
Under normal circumstances, it is difficult to reach B grade, but we reached
Summary of Results:
No. | Test Item | Test Method |
1 | Slipping Force | EN 74-1:2005 |
2 | Failure Force | EN 74-1:2005 |
Test Results:
Test Clause | Test Item | Test Requirement (Swivel coupler, Class B) | Test Result | Conclusion |
7.2.1
|
Slipping force
| △1≤7mm, Fs,5%≥10.0kN | △1≤7mm, Fs,5%=10.6kN |
Pass
|
1mm≤△2≤2mm, Fs,5% ≥15.0kN | Fs=30kN, △2˂1mm | |||
7.2.2 | Failure force | Ff,5%/γR2 ≥20.0kN | Ff,5%/γR2=24.4kN | Pass |
Pressed Sleeve Coupler
Summary of Results:
No. | Test Item | Test Method |
1 | Bending Moment Resistance | EN 74-1:2005 Clause 7.4.3 |
2 | Slipping Force | EN 74-1:2005 Clause 7.2.1 |
Test Results:
Test Item | Test Result | Test Requirement (Sleeve coupler, Class B) | Conclusion |
Bending Moment Resistance | △4=5mm, Mb,5% =1.43kNm | △4=5mm, Mb,5% ≥1.4kNm | Pass |
Putlog / Wrapover Coupler
Summary of Results:
No. | Test Item | Test Method |
1 | Slipping Resistance | BS 1139-2.2:2009+A1:2015 Clause 7 & Annex A.2 |
Test Results:
Test Item | Test Result | Test Requirement | Conclusion |
Slipping Resistance | 1mm≤△2≤2mm, Fs,5% =1.83kN | 1mm≤△2≤2mm, Fs,5% ≥1.04kN | Pass |
Girder / Gravlock Coupler
Summary of Results:
No. | Test Item | Test Method |
1 | Strength test | AS/NZS 1576.2:2016 Appendix L |
2 | Slip test along tube | AS/NZS 1576.2:2016 Appendix M |
3 | Slip test along tube a flange | AS/NZS 1576.2:2016 Appendix N |
Test Results:
Test Clause | Test Item | Test Requirement | Test Result | Conclusion |
Appendix L | Strength test | P=30.0kN, neither flange clamp shall show any permanent set | P=30.0kN, neither flange clamp showed any permanent set | Pass |
Appendix M | Slip test along tube | P=12.5kN, Slippage ≤ 6mm | P=12.5kN, Slippage<6mm | Pass |
Appendix N | Slip test along tube a flange | P=12.5kN, Slippage ≤ 6mm | P=12.5kN, Slippage<6mm | Pass |
Name | Download |
---|---|
Scaffolding Coupler Brochure.pdf | Download |
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