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2. United States Standard thread - Wikipedia

   en.wikipedia.org/wiki/United_States_Standard_thread

   The thread form is defined by flats at the tip and root of the thread form. This flat length is defined as the pitch divided by eight. The thread depth, which is from flat to flat is 0.6495 times the pitch. [4] For 1 ⁄ 4-inch (6.4 mm) screws and larger, the pitch is defined as: = +

3. List of thread standards - Wikipedia

   en.wikipedia.org/wiki/List_of_thread_standards

   V Thread Form: 0.60 UNM ANSI/ASME B1.11-1958 (R2016) Microscope Objective Thread: V Thread Form ASME B1.13M-2005 (R2015) Metric Screw Threads: M Profile: V Thread Form ASME B1.15-1995 (R2003) Unified Inch Screw Threads (UNJ Thread Form) V Thread Form ASME B1.20.1-2013: Pipe Threads, General Purpose (Inch) Pipe Thread Form ANSI B1.20.3-1976 ...

4. Injector pen - Wikipedia

   en.wikipedia.org/wiki/Injector_pen

   Historically, pen needles were manufactured in lengths up to 12.7mm. Over time, pen needles designed for insulin pens have become shorter, and a 4mm long needle is considered sufficient for most people to administer subcutaneously correctly. [23] In 1989, an injector pen form of human growth hormone was licensed in New Zealand. [28]

5. Birmingham gauge - Wikipedia

   en.wikipedia.org/wiki/Birmingham_gauge

   The Birmingham gauge ranges from 5/0 or 00000, the lowest gauge number corresponding to the largest size of 0.500 inches (12.7 mm), to 36, the highest gauge number corresponding to the smallest size of 0.004 inches (0.10 mm).

6. Syringe - Wikipedia

   en.wikipedia.org/wiki/Syringe

   The threads of the Luer lock tip of this 12mL disposable syringe keep it securely ... and specialty needles. [2] ... BD Ultra Fine [13] [18] (standard length only) ...

7. Sewing machine needle - Wikipedia

   en.wikipedia.org/wiki/Sewing_machine_needle

   Domestic sewing machines, designed for use in homes as opposed to commercial sewing operations, use a common needle type (including a standardized length, as well as shank shape and diameter) referred to as "Groz-Beckert 130 / 705," "HAx1" or "15x1" needles. [2] Needles labeled as "universal" needles are of this type and are generally the type ...