| 摘要 |
An improved fastener for clamping a bar grating sheet (12) to an underlying structural support member (14) includes a saddle clamp (20) extending between and supported on the top surface of two adjacent load support bars (16) of the grating and a threaded fastener (28) extending through the saddle clamp (20) and engaging a threaded opening (38) in the top arm (40) of a generally C-shaped friction clamp (42). The friction clamp (42) includes a lower arm (44) spaced from the upper arm for extending beneath a flange or leg of a metal structural member, whereby turning the threaded fastener (28) in the opening in the top arm provides a clamping pressure between the grating sheet (12) and the support member (14). A bearing pad (48) having a planar top surface (50) of predetermined area is formed on the top surface of the lower arm (44) to provide a fixed unit clamping pressure between the bearing pad (48) and the structural member (14) upon application of a predetermined torque to the threaded fastener (28).
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