Method of making strut nuts

Details Method of making strut nuts Method of making strut nuts

1983-05-23

1985-03-26

Combs, E. Michael

B21D 5324

Patent

active

045063990

ABSTRACT:
A method of making a nut adapted for use in combination with a structural member commonly known as "UNISTRUT". The structural member or "UNISTRUT" as in one face, a longitudinal slot bordered by inwardly projecting flanges. The nut has serrations in one face and is positioned in the slot with the serrations in gripping engagement with the edges of the flanges so that a threaded fasting member may extend between the flanges and into the threaded opening into the nut. In accordance with the method of the invention a strip of deformable, hardenable metal is cold rolled to form a plurality of longitudinally extending ridges or serrations and with sufficient force and working to harden the strip. The resulting hardened strip is then cut diagonally into a plurality of nut blanks with hardened serrations in one face. The blanks are then tapped to form a nut adapted for use in a "UNISTRUT" system.

REFERENCES:
patent: 351978 (1886-11-01), Hare
patent: 1159283 (1915-11-01), Sleeper
patent: 1429645 (1922-09-01), Schroeder
patent: 1795517 (1931-03-01), Sharp
patent: 3049161 (1962-08-01), Attwood
patent: 4377360 (1983-03-01), Kennedy

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