| 摘要 |
An improved beam clamp for use in hanging pipes and fire protection systems has a one piece clamp body with parallel arms which extend from a base for contact with a beam flange or other structure, and with one more through-holes formed in the base by friction drilling or other extrusion process to form a collar on one side of the base and a bushing on an opposite side of the base whereby the extruded through-hole has a linear dimension which is greater than a material thickness of the base. The extruded through-hole is threaded to receive a fastener or rod for extension to a pipe or other object, and the strength of the threaded engagement is increased by the number of threads in the extruded through-hole. |
