Jump to content

List of thread standards: Difference between revisions

Add links
From Wikipedia, the free encyclopedia
Browse history interactively
← Previous editNext edit →
Content deleted Content added
VisualWikitext
→Currently used thread standards: Add links, and BSW thread (as is used in Britian, and almost universally used on camera tripods)
→Currently used thread standards: Add example designations, to help guide the reader to the standard relevant to a particular designation
Line 9: Line 9:
{| class="sortable wikitable" border="1"
{| class="sortable wikitable" border="1"
|-
|-
! Standard !! Name !! Type
! Standard !! Name !! Type !! Example
|-
|-
| ASME B1.1-2003 (R2018) || [[Unified Thread Standard|Unified Inch Screw Threads (UN and UNR Thread Form)]] || V Thread Form
| ASME B1.1-2003 (R2018) || [[Unified Thread Standard|Unified Inch Screw Threads (UN and UNR Thread Form)]] || V Thread Form || {{frac|1|4}}″-20 UNC<br/>#4-40 UNC
|-
|-
| ASME B1.5-1997 (R2014) || Acme Screw Threads || [[Acme thread|Trapezoidal Thread Form]]
| ASME B1.5-1997 (R2014) || Acme Screw Threads || [[Acme thread|Trapezoidal Thread Form]] || Tr 60×9
|-
|-
| ANSI/ASME B1.9-1973 (R2017) || Buttress Inch Screw Threads || [[Buttress thread|Breech-Lock Thread Form]]
| ANSI/ASME B1.9-1973 (R2017) || Buttress Inch Screw Threads || [[Buttress thread|Breech-Lock Thread Form]]
|-
|-
| ASME B1.10M-2004 (R2014) || Unified Miniature Screw Threads || V Thread Form
| ASME B1.10M-2004 (R2014) || Unified Miniature Screw Threads || V Thread Form || 0.60 UNM
|-
|-
| ANSI/ASME B1.11-1958 (R2016) || Microscope Objective Thread || V Thread Form
| ANSI/ASME B1.11-1958 (R2016) || Microscope Objective Thread || V Thread Form
Line 33: Line 33:
| ASME B1.21M-1997 (R2013) || Metric Screw Threads - MJ Profile || V Thread Form
| ASME B1.21M-1997 (R2013) || Metric Screw Threads - MJ Profile || V Thread Form
|-
|-
| BS 34 || Tables of [[British Standard Whitworth|BS Whitworth]], BS Fine and BS Pipe Threads || V Thread Form (55°)
| BS 34 || Tables of [[British Standard Whitworth|BS Whitworth]], BS Fine and BS Pipe Threads || V Thread Form (55°) || {{frac|1|4}}″-20 BSW
|-
|-
| ISO 68-1:1998 || ISO general purpose screw threads—Basic profile—Part 1: Metric screw threads || V Thread Form
| ISO 68-1:1998 || ISO general purpose screw threads—Basic profile—Part 1: Metric screw threads || V Thread Form
Line 39: Line 39:
| ISO 68-2:1998 || ISO general-purpose screw threads—Basic profile—Part 2: Inch screw threads || V Thread Form
| ISO 68-2:1998 || ISO general-purpose screw threads—Basic profile—Part 2: Inch screw threads || V Thread Form
|-
|-
| ISO 261:1998 || [[ISO_metric_screw_thread|ISO general purpose metric screw threads]]—General plan || V Thread Form
| ISO 261:1998 || [[ISO_metric_screw_thread|ISO general purpose metric screw threads]]—General plan || V Thread Form || M6x1
|-
|-
| ISO 262:1998 || ISO general purpose metric screw threads—Selected sizes for screws, bolts and nuts || V Thread Form
| ISO 262:1998 || ISO general purpose metric screw threads—Selected sizes for screws, bolts and nuts || V Thread Form

Revision as of 04:17, 29 January 2022

A screw thread, often shortened to thread, is a helical structure used to convert between rotational and linear movement or force. A screw thread is an inclined plane wrapped around a cylinder or cone in the form of a helix, with the former being called a straight thread and the latter called a tapered thread. More screw threads are produced each year than any other machine element.[1]

Threads are generally produced according to one of the many standards of thread systems. Standards Development Organizations such as the American National Standards Institute, American Society of Mechanical Engineers, SAE International, International Organization for Standardization, Deutsches Institut für Normung (German Institute for Standardization), British Association and others produce these standards for manufacturers to follow when producing threaded components.

Currently used thread standards

Standard Name Type Example
ASME B1.1-2003 (R2018) Unified Inch Screw Threads (UN and UNR Thread Form) V Thread Form 1⁄4″-20 UNC
#4-40 UNC
ASME B1.5-1997 (R2014) Acme Screw Threads Trapezoidal Thread Form Tr 60×9
ANSI/ASME B1.9-1973 (R2017) Buttress Inch Screw Threads Breech-Lock Thread Form
ASME B1.10M-2004 (R2014) Unified Miniature Screw Threads 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 (R2013) Dryseal Pipe Threads (Inch) Pipe Thread Form
ASME B1.20.7-1991 (R2013) Hose Coupling Screw Threads - Inch Pipe Thread Form
ASME B1.21M-1997 (R2013) Metric Screw Threads - MJ Profile V Thread Form
BS 34 Tables of BS Whitworth, BS Fine and BS Pipe Threads V Thread Form (55°) 1⁄4″-20 BSW
ISO 68-1:1998 ISO general purpose screw threads—Basic profile—Part 1: Metric screw threads V Thread Form
ISO 68-2:1998 ISO general-purpose screw threads—Basic profile—Part 2: Inch screw threads V Thread Form
ISO 261:1998 ISO general purpose metric screw threads—General plan V Thread Form M6x1
ISO 262:1998 ISO general purpose metric screw threads—Selected sizes for screws, bolts and nuts V Thread Form
ISO 724:1993 ISO general-purpose metric screw threads—Basic dimensions V Thread Form
ISO 725:2009 ISO inch screw threads—Basic dimensions V Thread Form 51386
DIN 40400 Edison Thread Round V Thread Form

Obsolete thread standards

Standard Name Type Obsolescence date
BS 93:1951 British Association (B.A.) screw threads with tolerances for sizes 0 B.A. to 16 B.A. 1966[2]
BS 93:2008 British Association (B.A.) screw threads 1966[3]

See also

Notes

  1. ^ Degarmo, Black & Kohser 2003, p. 741.
  2. ^ BA screw thread series
  3. ^ BA screw thread series

References

  • Degarmo, E. Paul; Black, J T.; Kohser, Ronald A. (2003), Materials and Processes in Manufacturing (9th ed.), Wiley, ISBN 0-471-65653-4.
Retrieved from "https://en.wikipedia.org/enwiki/w/index.php?title=List_of_thread_standards&oldid=1068564315"