Method of manufacturing connector bolt

Details Method of manufacturing connector bolt Method of manufacturing connector bolt

1997-02-05

1998-09-22

Hail, III, Joseph J.

Threaded, headed fastener, or washer making: process and apparat

Process

Making externally threaded fastener, e.g., screw or bolt

470 8, B21H 302

Patent

active

058106707

ABSTRACT:
A method of manufacturing a connector bolt includes the steps of forming axial grooves on a part of the shank of the connector bolt, and then simultaneously performing a rolling process for thread formation around the shank part with the axial grooves formed thereon with a rolling tool and a different rolling process around a part of the shank without the axial grooves with a different rolling tool.

REFERENCES:
patent: 2761336 (1956-09-01), Greene et al.
patent: 3566428 (1971-03-01), Neuschotz
patent: 3878759 (1975-04-01), Carlson
patent: 4722107 (1988-02-01), Kariya

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