Threaded coupling of two parts of different hardness

Details Threaded coupling of two parts of different hardness Threaded coupling of two parts of different hardness

1991-03-12

1992-01-28

Lindsey, Rodney M.

Expanded, threaded, driven, headed, tool-deformed, or locked-thr

Internally threaded fastener element, e.g., nut, etc.

Thread structure

411411, F16B 3712, F16B 3504

Patent

active

050838903

ABSTRACT:
A threaded coupling includes a male part and a female part, of which one is made of a hard material such as metal and another of soft material such as plastic. The part made of the soft material is formed with a groove at a first turn of the screw thread thereof, which receives a metallic resilient ring to define a guide portion for the part of the hard material as the latter is being threaded to another part having the ring in the groove thereof.

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