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2. ASTM F568M - Wikipedia

   en.wikipedia.org/wiki/ASTM_F568M

   ASTM F568M is an ASTM International standard for metric bolts, screws and studs that are used in general engineering applications. It is titled: Standard Specification for Carbon and Alloy Steel Externally Threaded Metric Fasteners. It defines mechanical properties for fasteners that range from M1.6 to 100 in diameter.

3. ASTM A490 - Wikipedia

   en.wikipedia.org/wiki/ASTM_A490

   ASTM A490 and ASTM A490M are ASTM International standards for heavy hex structural bolts made from alloy steel.The imperial standard is officially titled Standard Specification for Structural Bolts, Alloy Steel, Heat Treated, 150 ksi Minimum Tensile Strength, while the metric standard (M) is titled Standard Specification for High-Strength Steel Bolts, Classes 10.9 and 10.9.3, for Structural ...

4. Screw - Wikipedia

   en.wikipedia.org/wiki/Screw

   A lathe of 1871, equipped with leadscrew and change gears for single-point screw-cutting A Brown & Sharpe single-spindle screw machine. Fasteners had become widespread involving concepts such as dowels and pins, wedging, mortises and tenons, dovetails, nailing (with or without clenching the nail ends), forge welding, and many kinds of binding with cord made of leather or fiber, using many ...

5. List of screw drives - Wikipedia

   en.wikipedia.org/wiki/List_of_screw_drives

   It typically consists of a countersunk flat-head bolt, with a thin shank and hex head protruding from the flat head. The hex head is used to drive the bolt into the countersunk hole, then either a wrench or hammer is used to break the shank and hex head from the flat head, or it is driven until the driving head shears off.

6. List of DIN standards - Wikipedia

   en.wikipedia.org/wiki/List_of_DIN_standards

   M8x1 to M100x4 hexagon head bolts with fine pitch thread – Product grades A and B: Withdrawn: DIN EN ISO 8765, DIN EN ISO 8676: ISO 8765, ISO 8676: DIN 961: M8x1 to M52x3 hexagon head bolts with fine pitch thread – Product grades A and B: Withdrawn: DIN EN ISO 8676: ISO 8676: DIN 962: Designation system for fasteners: Active: DIN 963

7. List of iPad models - Wikipedia

   en.wikipedia.org/wiki/List_of_iPad_models

   Main page; Contents; Current events; Random article; About Wikipedia; Contact us; Pages for logged out editors learn more

8. macOS - Wikipedia

   en.wikipedia.org/wiki/MacOS

   This was the first increment in the primary version number of macOS since the release of Mac OS X Public Beta in 2000; updates to macOS 11 were given 11.x numbers, matching the version numbering scheme used by Apple's other operating systems.

9. Antonio Brown - Wikipedia

   en.wikipedia.org/wiki/Antonio_Brown

   Antonio Tavaris Brown Sr. (born July 10, 1988), nicknamed "AB", is an American former professional football wide receiver in the National Football League (NFL). A draft steal in the sixth round of the 2010 NFL draft by the Pittsburgh Steelers, Brown is regarded as one of the best receivers of the 2010s, accumulating the most first-team All-Pro selections at his position throughout the decade ...