|Place of Origin:||Hebei，China|
|Minimum Order Quantity:||1TON|
|Packaging Details:||solid bicycle saddle, 50pcs/carton|
|Payment Terms:||L/C, T/T|
|Surface Treatment:||YZP/HDG/ Powder Coating||Material:||Q235/ Q345/ C20/ C45|
|Standard:||DIN/GB/ EN / Etc||Color:||White/ Black/ Yellow|
|Payment:||L/C, T/T, Etc||Delivery Time:||5-8 Work Days|
foundation nut bolt,
concrete foundation anchors
GB 5782-86 Grade 10.9 M20 Foundation Anchor Bolts For Concrete Building
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.
Foundation Anchor Bolts can be divided into Fixed Foundation Anchor Bolts, Activity Foundation Anchor Bolts, Expansion Anchor Foundation Bolts and Bonding Foundation Anchor Bolts. According to the different shapes, they are divided into: L-shaped embedded bolts, 9-shaped embedded bolts, U-shaped embedded bolts, welded pre-embedded bolts, and embedded bolts on the bottom plate.
1. The fixed Foundation Anchor Bolts, also known as the short-foundation Anchor Bolts, are watered together with the foundation to secure equipment without strong vibration and shock.
2, Activity Foundation Anchor Bolts, also known as the long Foundation Anchor Bolts, is a detachable Foundation Anchor Bolts, used to fix heavy machinery and equipment working with strong vibration and impact.
3, expansion anchor Foundation Anchor Bolts are often used for fixed stationary equipment or auxiliary equipment. The Anchor Anchor Bolts shall be installed in such a way that the distance from the centre of the bolt to the base edge is not less than 7 times the anchorage of the Anchor Bolt, and the anchorage of the Anchor Bolt shall not be less than 10 MPa; there shall be no cracks in the borehole. Care should be taken to prevent the drill bit from colliding with the reinforcing steel or buried pipe in the foundation; the diameter and depth of the drill hole should match the anchor anchor Foundation Anchor Bolts.
4, bonding Foundation Anchor Bolts is a Foundation Anchor Bolts commonly used in recent years, its method and requirements with expansion anchor Foundation Anchor Bolts. However, when the adhesive is attached, the debris in the hole should be blown off and must not be affected by moisture.
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