Screw fastener in metal connector to wood structure shear connec

Details Screw fastener in metal connector to wood structure shear connec Screw fastener in metal connector to wood structure shear connec

1997-08-29

2000-08-29

Saether, Flemming

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

411411, F16B 2500

Patent

active

061098507

ABSTRACT:
A wood screw for holding a wood structural member to another member such as a sheet metal member a heavy metal member or another wood member wherein the screw includes a shank having a threaded portion and an unthreaded portion. A knurled means is provided on the shank between the threaded and the unthreaded portion for forming an annular zone of mashed and severed, as well as unsevered, wood fibers for preventing wood splitting and laterally holding the screw to the wood structural member in a tight fit.

REFERENCES:
patent: Re3941 (1870-04-01), Pierce
patent: D31749 (1899-10-01), North
patent: 2871752 (1959-02-01), Stern
patent: 3478639 (1969-11-01), Gruca
patent: 4834602 (1989-05-01), Takasaki
patent: 5295774 (1994-03-01), Roberts
patent: 5516248 (1996-05-01), DeHaitre
Lionel S. Marks, Mechanical Engineers' Handbook Publisher McGraw-Hill Book Company, Inc. pp. 879, 880.
Simpson Strong-Tie Co., Inc. Catalog, Copyright 1996 Catalog No. C-96 title: Wood Construction Connectors.

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