4. Expanded, threaded, driven, headed, tool-deformed, or locked-thr
  5. Externally threaded fastener element, e.g., bolt, screw, etc.
  6. Pilot end having means enhancing fastening or installation

Frank W. Bechtel, Jr.

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Radius gimlet point anti-stripout screw

Threaded – headed fastener – or washer making: process and apparat – Process – Making externally threaded fastener – e.g. – screw or bolt
Reexamination Certificate

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Radius gimlet point anti-stripout screw

Threaded – headed fastener – or washer making: process and apparat – Process – Making externally threaded fastener – e.g. – screw or bolt
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Radius gimlet point anti-stripout screw

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Pilot end having means enhancing fastening or installation
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Radius gimlet point anti-stripout screw

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Pilot end having means enhancing fastening or installation
Reexamination Certificate

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Threaded fastener particularly suited for plastics

Expanded – threaded – driven – headed – tool-deformed – or locked-thr – Externally threaded fastener element – e.g. – bolt – screw – etc. – Thread or shank structure
Reexamination Certificate

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