A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
A self drilling roofing screw is provided to secure sheet roofing material to a supporting structure such as overlapped purlins. The self drilling screw includes: a shank defining a longitudinal axis; first and second longitudinal ends; a drill tip portion at the first end; a 5 fastener head at the second end, and a threaded length extending from the drill tip portion towards the fastener head. The drill tip portion has a longitudinal length of at least 9.9mm, and the threaded length has at least one thread and has less than 16 threads per inch. 0i
A self drilling roofing screw is provided to secure sheet roofing material to a supporting structure such as overlapped purlins. The self drilling screw includes: a shank defining a longitudinal axis; first and second longitudinal ends; a drill tip portion at the first end; a 5 fastener head at the second end, and a threaded length extending from the drill tip portion towards the fastener head. The drill tip portion has a longitudinal length of at least 9.9mm, and the threaded length has at least one thread and has less than 16 threads per inch. 0i
A self drilling screw
AUGIMERI MATTHEW (author)
2016-06-23
Patent
Electronic Resource
English
IPC:
F16B
DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES
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Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile
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E04D
ROOF COVERINGS
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Dacheindeckungen
Self-drilling screw -- New fastening device
| Engineering Index Backfile | 1965
Self-Drilling Screw Joints for Cold-Formed Channel Portal Frames
| British Library Conference Proceedings | 2002