M3 x 8mm Mountersunk

Anchor Bolt Parameters

Grade / Class: SAE J429 Gr.2, 5,8; ASTM A307Gr.A, Class 4.8, 5.8, 6.8, 8.8, 10.9, 12.9
Thread: M, UNC, UNF
Finish: Black Oxide, Zinc Plated(Clear/Blue/Yellow/Black), H.D.G. Y.Z.P. Plain, Nickel, Chrome

Anchor Bolt type

The anchor bolts can be divided into fixed anchor bolts, movable anchor bolts, expansion anchor anchor bolts and bonded anchor bolts.
Fixed anchor bolts are grounded with the foundation to secure equipment without strong vibration and shock.
The movable anchor bolt, also known as the long anchor bolt, is a detachable anchor bolt for fixing heavy machinery that has strong vibration and shock.
Expansion anchor bolts are often used to fix static equipment or auxiliary equipment.
The installation of the anchor bolts of the expansion anchors shall meet the following requirements: the distance from the center of the bolt to the edge of the foundation shall not be less than 7 times the diameter of the anchor bolts; the foundation strength of the anchor bolts shall not be less than 10 MPa; there shall be no cracks in the borehole, The drill bit collides with the steel bars and buried pipes in the foundation; the diameter and depth of the drill holes should match the anchor bolts of the expansion anchors. Bonding anchor bolts are a kind of anchor bolts commonly used in recent years, and the method and requirements are the same as the anchor bolts. However, when bonding, please pay attention to the impurities in the hole and do not get wet.
Installation of the anchor bolts The loosening of the anchor bolts in the foundation may loosen the bolts when the anchor bolts are tightened. In this case, the bolts should be adjusted to the original position and the foundation around the bolts should be scooped out enough. Then, the two U-shaped steel bars are welded vertically and horizontally on the bolts, and finally the pits are cleaned and grouted with water.
The method of treating the deviation of the live foot bolt after the concrete is solidified to the design strength and then tightening the deviation of the foot bolt is substantially the same as the method of the dead anchor bolt, but the anchor bolt can be pulled out. If the bolt is too long, a piece of thread can be cut on the machine tool; if the bolt is too short, it can be extended by hot forging; if the position is not consistent, it can be corrected by bending method.

Anchor Bolt Description

Product name	Plain Washers
Place of origin	China(Mainland)
Brand Name	NEWSTARWDH
Port	Qingdao or according to requirement
Delivery time	Normally in 7-35 days, according to quantity
MOQ	500kgs for each specification
Mark	According to customer’s requirement
OEM	Available