Q235 Q345 Material Foundation Anchor Bolts Grade 10.9 M40 For Tower Construction

Product Description

Size: M10-M48 ;

Surface treatment: black coating, electroplate, painting, phosphatizing

Galvanizing technique: hot dipped galvanized , powder coating, zinc electric,

Thread : full , half, coarse thread, fin pitch thread,

Pitch: MF/UNC/UNF/UNEF

Grade: 4.8；6.8；8.8; 10.9; 12.9;

Standard : DIN/GB/EN/ASME

Material : steel C45, Q235, C20 Q345, C45 ;

Alloy steel: SCM435, 20Mn TiB , 35CrMo, 42CrMo ;

Usage :　foundation connection, cable connecting, construction buildings, high-way fencing, vehicle accessories;

The tensile strength of the Foundation Anchor Bolts is the tensile strength of the round bar itself. The size equal to the cross-sectional area multiplied by the allowable stress (Q235B: 140 MPa, 16 Mn or Q345: 170 MPA) is the allowable tensile strength at design time.
Foundation Anchor Bolts generally use Q235 steel, which is light round. Rebar (Q345) has a high strength and it is easy to make the screw thread of a nut without a roundness. For the Foundation Circle Anchor Bolts, the buried depth is generally 25 times its diameter, and then a 90-degree long 90-degree hook is made. If the bolt diameter is too large (eg 45mm) to be buried too deep, the square plate can be welded at the end of the bolt, ie it can be a big head (but it is also required). Both the depth of burial and the hook are used to ensure the friction between the bolt and the foundation so that the bolt will not be pulled out.