Roofing fastener

Details Roofing fastener Roofing fastener

1988-06-09

1990-02-13

Smith, Gary L.

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

411188, 411310, 411410, 411418, 411901, 411908, 411914, 52410, F16B 2500

Patent

active

049002082

ABSTRACT:
A fastener for insulated roofing comprises a non-metallic, screw-threaded shank, having a penetrating point at one end of the shank and a transverse plate carried at the other end of the shank. The shank and transverse plate are preferably integrally method out of a polyetherimide resin formulation which has a tensile strength of at least 15,000 psi. as tested by ASTM D638. Such a fastener has a great advantage in terms of cost and lack of corrodability, while still exhibiting the required strength. Also, a universal driver socket is provided.

REFERENCES:
patent: 1088892 (1914-03-01), Foreman
patent: 1465148 (1923-08-01), Rosenberg
patent: 1933332 (1933-10-01), May
patent: 2037586 (1936-04-01), Olson
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patent: 3803085 (1974-04-01), Takehoshi
patent: 4003175 (1977-01-01), Patry
patent: 4354725 (1982-10-01), Herbaugh et al.
patent: 4361997 (1982-12-01), DeCaro
patent: 4453361 (1984-06-01), Hulsey
patent: 4568229 (1986-02-01), Hulsey
patent: 4718801 (1988-01-01), Berecz

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