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• Self-tapping_screw abstract "A self-tapping screw is a screw that can tap its own hole as it is driven into it. For hard substrates such as metal or hard plastics, the self-tapping ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-tapping one can (within reasonable limits of substrate hardness and depth). For softer substrates such as wood or soft plastics, the self-tapping ability can come simply from a tip that tapers to a gimlet point (in which no flute is needed). Like the tip of a nail or gimlet, such a point forms the hole by displacement of the surrounding material rather than any chip-forming drilling/cutting/evacuating action.Some self-tapping screws are also self-drilling, which means that, in addition to the tap-like flute in the leading threads, there is also a preliminary drill-like fluted tip that looks much like the tip of a center drill. These screws combine a thrilling-like action and the fastener installation itself into only one driving motion (instead of separate drilling, tapping, and installing motions); they are thus very efficient in a variety of hard-substrate applications, from assembly lines to roofing. Self-tapping screws are used in a variety of applications ranging from DIY carpentry to surgery. Many dental implants and orthopedic bone screws are examples of self-tapping screws used in surgery.".
• Self-tapping_screw thumbnail Screw_for_wood.JPG?width=300.
• Self-tapping_screw wikiPageExternalLink v=onepage&q=popular%20science%20February%201946&f=true.
• Self-tapping_screw wikiPageID "1118055".
• Self-tapping_screw wikiPageRevisionID "588382862".
• Self-tapping_screw hasPhotoCollection Self-tapping_screw.
• Self-tapping_screw subject Category:Screws.
• Self-tapping_screw type CausalAgent100007347.
• Self-tapping_screw type Defender109614684.
• Self-tapping_screw type Keeper110229498.
• Self-tapping_screw type Lawman110249459.
• Self-tapping_screw type LivingThing100004258.
• Self-tapping_screw type Object100002684.
• Self-tapping_screw type Organism100004475.
• Self-tapping_screw type Person100007846.
• Self-tapping_screw type PhysicalEntity100001930.
• Self-tapping_screw type Preserver110466918.
• Self-tapping_screw type PrisonGuard110149867.
• Self-tapping_screw type Screws.
• Self-tapping_screw type Whole100003553.
• Self-tapping_screw type YagoLegalActor.
• Self-tapping_screw type YagoLegalActorGeo.
• Self-tapping_screw comment "A self-tapping screw is a screw that can tap its own hole as it is driven into it. For hard substrates such as metal or hard plastics, the self-tapping ability is often created by cutting a gap in the continuity of the thread on the screw, generating a flute and cutting edge similar to those on a tap. Thus, whereas a regular machine screw cannot tap its own hole in a metal substrate, a self-tapping one can (within reasonable limits of substrate hardness and depth).".
• Self-tapping_screw label "Self-tapping screw".
• Self-tapping_screw label "Tornillo autorroscante".
• Self-tapping_screw label "Саморез".
• Self-tapping_screw sameAs Tornillo_autorroscante.
• Self-tapping_screw sameAs m.047k_b.
• Self-tapping_screw sameAs Q2988641.
• Self-tapping_screw sameAs Q2988641.
• Self-tapping_screw sameAs Self-tapping_screw.
• Self-tapping_screw wasDerivedFrom Self-tapping_screw?oldid=588382862.
• Self-tapping_screw depiction Screw_for_wood.JPG.
• Self-tapping_screw isPrimaryTopicOf Self-tapping_screw.