Clamping construction for an automotive wiring harness

A clamping construction for an automotive wiring harness, comprising:

• a base for receiving an automotive wiring harness, the base having a first locking construction;
• a clamp having a first end coupled with the base at a location spaced from the first locking construction, the clamp further having a second end, said clamp being rotatable into a coupling position such that the second end of the clamp is positioned adjacent the first locking construction on the base, portions of the clamp between the ends having inner and outer surfaces, the inner surface being configured to hold an automotive wiring harness adjacent the base, at least one rib projecting outward a selected distance from the outer surface and extending from the first end of the clamp toward the second end;
• a second locking construction formed on the clamp in proximity to the second end for engaging the first locking construction and coupling the base and the clamp in the coupling position;
• a projecting guide provided on the base at a location for guiding the second end of the clamp to the coupling position where the clamp and the base are coupled, the projecting guide having a projecting end spaced from the base;
• and
• a projected portion provided on the outer surface of the clamp and extending from the rib substantially to the second end of the clamp, the projected portion projecting from the outer surface of the clamp a distance greater than the selected distance by which the rib projects from the outer surface, the projected portion defining a length from the second end of the clamp to the rib, the length being selected such that the projected portion extends at least to the projecting end of the projecting guide when the clamp is in the coupling position.