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2. List of screw and bolt types - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_and_bolt_types

   Inch-sized wood screws in the U.S. are defined by ANSI-B18.6.1-1981(R2003), while in Germany they are defined by DIN 95 (Slotted raised countersunk (oval) head wood screws), DIN 96 (Slotted round head wood screws), and DIN 97 (Slotted countersunk (flat) head wood screws). Security head screw: These screws are used for security purposes and ...

3. Screw - Wikipedia

   en.wikipedia.org/wiki/Screw

   An assortment of screws, and a US quarter for size comparison A wood screw: a) head; b) non-threaded shank; c) threaded shank; d) tip The six classical simple machines. A screw is an externally helical threaded fastener capable of being tightened or released by a twisting force to the head.

4. Furniture screw - Wikipedia

   en.wikipedia.org/wiki/Furniture_screw

   Wood screws are a common type of screw in furniture. A furniture screw can refer to any type of screw (and sometimes nut) used on furniture. Different types of screws have different uses in furniture. [1] According to a 1986 article in New York Times, screws on old furniture can be difficult to remove due to rust. [2]

5. Self-tapping screw - Wikipedia

   en.wikipedia.org/wiki/Self-tapping_screw

   The countersunk head has a Pozidriv recess. A self-tapping screw is a screw that can tap its own hole as it is driven into the material. More narrowly, self-tapping is used only to describe a specific type of thread-cutting screw intended to produce a thread in relatively soft material or sheet materials, excluding wood screws.

6. Framing (construction) - Wikipedia

   en.wikipedia.org/wiki/Framing_(construction)

   Light-frame materials are most often wood or rectangular steel, tubes or C-channels. Wood pieces are typically connected with nail fasteners, nails, or screws; steel pieces are connected with pan-head framing screws, or nuts and bolts. Preferred species for linear structural members are softwoods such as spruce, pine and fir.

7. List of DIN standards - Wikipedia

   en.wikipedia.org/wiki/List_of_DIN_standards

   Product grade A slotted pan head screws: Withdrawn: DIN EN ISO 1580: ISO 1580: DIN 88: Product slotted oval head countersunk machine screws: Withdrawn: ISO 2010-1983 [1] DIN 93: Tab washers with long tab: Withdrawn: DIN 94: Split pins: Withdrawn: DIN EN ISO 1234: ISO 1234: DIN 95: Slotted Raised Countersunk (Oval) Head Wood Screws: Active: DIN ...