Corrosion-resistant nail for driving into hard materials

Details Corrosion-resistant nail for driving into hard materials Corrosion-resistant nail for driving into hard materials

1992-11-23

1994-02-15

Wilson, Neill R.

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

Impact driven fastener, e.g., nail, spike, tack, etc.

Having means to facilitate explosive driving

411480, 411923, F16B 1500, F16B 1502

Patent

active

052861538

ABSTRACT:
Nails are driven into hard receiving materials such as concrete, rock, metal and the like by explosive powder charge operated setting tools. To achieve the high mechanical strength required for such nails, the nails are formed of two parts, one a shank and the other a head fitted onto the shank. While the head is formed of a deformable corrosion resistant steel, the shank is formed of an austenitic steel alloyed with nitrogen having a very high mechanical strength. The steel forming the shank can only be shaped to a very limited extent, whereby a narrow flange is provided on the rear end of the shank. A disk fitted on the shank serves as a guide for the nails during the driving operation.

REFERENCES:
patent: 3377903 (1968-04-01), Korte
patent: 3921495 (1975-11-01), Braun et al.
patent: 4802802 (1989-02-01), Thurner
patent: 4915561 (1990-04-01), Buhri et al.

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