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MBT Bolt screw Coupler
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MBT Bolt screw Coupler
The MBT Bolt couplers provides a cost-effective method of joining reinforcing bars, particularly when the fixed bar is already in place and there is insufficient space for a hydraulic swaging press.MBT Couplers are easy to install and achieve failure loads higher than 115% of
the characteristic yield strength of grade 500 reinforcing bar. Neither bar end preparation
to form threads, nor bar rotation are required. MBT couplers can also be used to join imperial, plain round or deformed reinforcing bars.The bar ends are supported within the coupler
by two serrated saddles, and as the lockshear bolts are tightened, the conical ends embed
themselves into the bar. As this happens the serrated saddles bite into both the bar and
the shell of the coupler. The lockshear bolts of couplers up to and including the ET20 can be
tightened using a ratchet wrench. For larger couplers a nut runner is recommended. In all cases heavy duty sockets should be used. When the pre-determined tightening torque for the bolts is reached, the heads shear off leaving the top of the installed bolt slightly proud of the coupler. This provides an instant visual check of correct installation.Note: Impact tools must not be used to tighten lockshear bolts.
Size: 10mm-40mm,Meet the requirements of steel bars: HRB500/B500B/SD600/ASTM 75
Material: 40CR
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the characteristic yield strength of grade 500 reinforcing bar. Neither bar end preparation
to form threads, nor bar rotation are required. MBT couplers can also be used to join imperial, plain round or deformed reinforcing bars.The bar ends are supported within the coupler
by two serrated saddles, and as the lockshear bolts are tightened, the conical ends embed
themselves into the bar. As this happens the serrated saddles bite into both the bar and
the shell of the coupler. The lockshear bolts of couplers up to and including the ET20 can be
tightened using a ratchet wrench. For larger couplers a nut runner is recommended. In all cases heavy duty sockets should be used. When the pre-determined tightening torque for the bolts is reached, the heads shear off leaving the top of the installed bolt slightly proud of the coupler. This provides an instant visual check of correct installation.Note: Impact tools must not be used to tighten lockshear bolts.
Size: 10mm-40mm,Meet the requirements of steel bars: HRB500/B500B/SD600/ASTM 75
Material: 40CR
Product Description
Advantage:
1.High connection strength and stable performance.
2.Easy installation and disassembly, high efficiency.
3.Good compatibility with various bolts and equipment.
4High durability, not easy to wear or loosen.
5.Safe and reliable, suitable for industrial and construction applications.
Application Scenarios and Positions
1. Secondary structure, non-load-bearing reinforcement, construction reinforcement, constructional column, lintel, ring beam, tie bar, masonry tie bar connection
2. Prefabricated components, prefabricated assemblies, prefabricated stairs, prefabricated slabs, prefabricated partition wall reinforcement connection
3. Temporary fixation, reinforcement, and maintenance projects, temporary support, on-site reinforcement, old building renovation
4. Areas with extremely limited space, impossible for threading or extrusion, pipe well, small column pier, concealed installation area
5. Projects with extremely high speed requirements, simple projects, multi-story civil buildings, simple factories, rural self-built houses, small-scale renovation projects
