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Rear Flared Anchor M12
The rear flared anchor M12 surface adopts hot-dip galvanizing process, the thickness of the zinc layer is 55um, to ensure the smooth screwing of the nut and the bolt. The rear flared anchor M12 screw is made of high-quality cold-heading alloy steel 40Cr, which avoids the risk of hydrogen embrittlement caused by the use of 45 steel.
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Product Description
Rear Flared Anchor M12
1. Features and advantages
1. The screw is made of high-quality cold-heading alloy steel 40Cr, which avoids the risk of hydrogen embrittlement caused by the use of 45 steel
2. The casing is made of high-quality cold-drawn Q345B seamless steel pipe, which is CNC turned to ensure the accuracy of the pipe walls at both ends.
3. The natural transition design of the bolt R angle ensures the tight fit between the sleeve and the bolt
4. The selection of mold materials to the control of service life ensures the stability of anchor bolt quality
5. The non-expanded end of the casing is stamped and locked and integrated with the screw to avoid safety risks caused by the falling of the screw
6.8.8 level mechanical properties, superior tensile, shear, fatigue and fire resistance
7. The surface adopts hot-dip galvanizing process, the thickness of the zinc layer is 55um, to ensure the smooth screwing of the nut and the bolt
2. installation diagram (self-reaming by tapping tool only)
3. Anchorage geometry
|
Name |
Specifications |
Screw length |
Length of teeth |
Length of sleeve |
Outer diameter |
Nut thickness |
Gasket thickness |
|
Back expansion anchor |
M12x60/20 |
110 mm |
40 mm |
60 mm |
18 mm |
mm 10.5 |
2.5 mm |
|
Back expansion anchor |
M12x80/20 |
130 mm |
40 mm |
80 mm |
18 mm |
mm 10.5 |
2.5 mm |
4.Bearing capacity of anchor bolt with different buried depth in cracked concrete and non-cracked concrete
|
|
Non-cracking concrete |
Cracking concrete |
||
|
Anchor bolt size |
M12x60/20 |
M12x80/20 |
M12x60/20 |
M12x80/20 |
|
f[mm] length of sleeve |
60 |
80 |
60 |
80 |
|
L[mm] of total screw length |
110 |
130 |
110 |
130 |
|
Nrd[KN] of tensile bearing capacity |
20 |
24.1 |
12.1 |
13.3 |
|
Vrd[KN] of shear capacity |
27 |
27 |
27 |
27 |
