ES112917U - Self-threading screw. (Machine-translation by Google Translate, not legally binding) - Google Patents

Self-threading screw. (Machine-translation by Google Translate, not legally binding)

Info

Publication number
ES112917U
ES112917U ES112917U ES112917U ES112917U ES 112917 U ES112917 U ES 112917U ES 112917 U ES112917 U ES 112917U ES 112917 U ES112917 U ES 112917U ES 112917 U ES112917 U ES 112917U
Authority
ES
Spain
Prior art keywords
cross
section
work
penetration
translation
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
ES112917U
Other languages
Spanish (es)
Other versions
ES112917Y (en
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Res Engineering And Manufacturing Inc
Research Engineering and Manufacturing Inc
Original Assignee
Res Engineering And Manufacturing Inc
Research Engineering and Manufacturing Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Res Engineering And Manufacturing Inc, Research Engineering and Manufacturing Inc filed Critical Res Engineering And Manufacturing Inc
Priority to ES112917U priority Critical patent/ES112917Y/en
Publication of ES112917U publication Critical patent/ES112917U/en
Application granted granted Critical
Publication of ES112917Y publication Critical patent/ES112917Y/en
Expired legal-status Critical Current

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  • Forging (AREA)

Abstract

Self-tapping screw, without grooves for indenting threads in a matrix body having a continuous laminated thread formation in both spigot and penetration portions in the work, characterized in that a) the spike is of round shape in its cross section; b) the crest of the thread of said portion of penetration in the work is tapering inwards in the direction of the end of penetration in the work; e) at least the thread formation of said end of penetration in the work has cross sections of passing surface in the form of a polygon generally formed by arcs of curves; d) said polygon includes a series of symmetrically arranged arcuate sides, which are gradually joined to intermediate arcuate lobes; e) the radius of curvature of said sides along said surface in each cross section is greater than half the width of such a cross section, but not substantially greater than that width; f) the radius of curvature of said lobes along said surface 25. In each cross section is substantially less than half the width of such a cross section (Machine-translation by Google Translate, not legally binding)
ES112917U 1965-07-08 1965-07-08 SELF-TAPPING SCREW. Expired ES112917Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
ES112917U ES112917Y (en) 1965-07-08 1965-07-08 SELF-TAPPING SCREW.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES112917U ES112917Y (en) 1965-07-08 1965-07-08 SELF-TAPPING SCREW.

Publications (2)

Publication Number Publication Date
ES112917U true ES112917U (en) 1965-12-01
ES112917Y ES112917Y (en) 1967-01-16

Family

ID=63176305

Family Applications (1)

Application Number Title Priority Date Filing Date
ES112917U Expired ES112917Y (en) 1965-07-08 1965-07-08 SELF-TAPPING SCREW.

Country Status (1)

Country Link
ES (1) ES112917Y (en)

Also Published As

Publication number Publication date
ES112917Y (en) 1967-01-16

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