anchor bolt/back bolt

Description

Anchor bolt series,our featured products,including anchor bolt for stone materials and anchor bolt for cellular boards, all of which have strong anti-stress ability and high shcok resistance.
Anchor bolt dilatant is a sequential structure decompressing ring.When decompressing ring is expanding,the lowerdiameter expands but the upper diameter is minishing.At the monment ,the shape of decompressing ring is changed from cyclindrical surface to circular conical surface ,while their surface aera remains the same.Then the meshing aera increases,meshing pressure decreases,which could effectly protect the stone from high pressure.