Cage nut

Cage nuts and a screw
Newer designs of cage nuts eliminate the need for installation tools.

A cage nut or caged nut (also called a captive or clip nut) consists of a (usually square) nut in a spring steel cage which wraps around the nut. The cage has two wings that when compressed allow the cage to be inserted into the square holes, for example, in the mounting rails of equipment racks. When the wings are released, they hold the nut in position behind the hole. Cage nuts conforming to this description were patented in 1952 and 1953.[1][2] The original design requires an insertion tool to install a cage nut into a hole. Newer designs featuring squeeze-and-release tabs allow for tool-less installation.[3]

Usage

The square-hole cage nut can be used wherever a square hole can be punched. An older type of captive nut uses a spring clip that holds the nut and slides on the edge of a thin sheet. While this type of cage nut can only position the nut a fixed distance from the edge of a thin plate, it works equally well with square and round holes. A patent for such a nut was granted in 1946.[4]

Using cage nuts provides several benefits over threaded holes. It permits a range of choice of nut and bolt size (e.g. metric vs English) in the field, long after the equipment has been manufactured. Second, if a screw is over-tightened, the nut can be replaced, unlike a pre-threaded hole, where a hole with stripped threads becomes unusable. Third, cage nuts are easy to use on materials too thin or soft to be threaded.

The nut is usually slightly loose in the cage to allow for minor adjustments in alignment. This reduces the likelihood that the threads will be stripped during equipment installation and removal. The dimensions of the spring steel clip determine thickness of the panel to which the nut may be clipped. In the case of square-hole cage nuts, the clip dimensions determine the range of hole sizes to which the clip will securely hold the nut. In the case of slide-on cage nuts, the clip dimensions determine the distance from the panel edge to the hole.

Applications

A common use for cage nuts is to mount equipment in square-holed 19-inch racks (the most common type), with 0.375 inches (9.5 mm) square-hole size. There are four common sizes: UNF 10–32 and, to a lesser extent, UNC 12–24 are generally used in the United States; elsewhere, M5 (5 mm outside diameter and 0.8 mm pitch) for light and medium equipment and M6 for heavier equipment, such as servers.

Although some modern rack-mount equipment has bolt-free mounting compatible with square-hole racks, many rack-mount components are generally mounted with cage nuts.

See also

References

  1. ^ Laurence H. Flora, Jr., Combined Nut Retainer and Thread Lock, U.S. patent 2,587,134, granted Feb. 26, 1952.
  2. ^ William A. Bedford, Jr., Cage Nut, U.S. patent 2,627,294, granted Feb. 3, 1953.
  3. ^ "CPI's Clik-Nut is a tool-less alternative to traditional cage nuts". www.cablinginstall.com. Retrieved 2018-04-25.
  4. ^ George A. Tinnerman, Fastening Device, U.S. patent 2,394,729, granted Feb. 12, 1946.

Read other articles:

Somavadi Srirattanarajadhida

Princess Samorarattanasirijeshtha Somavadi SrirattanadhidaPrincess SamorarattanasirijeshthaBorn(1852-11-19)19 November 1852Bangkok, SiamDied4 May 1931(1931-05-04) (aged 78)Bangkok, SiamHouseChakri DynastyFatherMongkut (Rama IV)MotherTieng Rojanadis Princess Somavadi Sriratanarajadhida, the Princess Samorarattanasirijeshtha (Thai: โสมาวดี ศรีรัตนราชธิดา; RTGS: Somawadi Si Rattanaratchathida 19 November 1852 - 4 May 1931) was a Princess of Sia...

 

 

Kartu undangan

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Kartu undangan – berita · surat kabar · buku · cendekiawan · JSTOR artikel ini perlu dirapikan agar memenuhi standar Wikipedia. Tidak ada alasan yang diberikan. Silakan kembangkan artikel ini semampu And...

 

 

Dewan Perwakilan Rakyat Daerah Kota Medan

Dewan Perwakilan Rakyat Daerah Kota MedanDewan Perwakilan Rakyat Kota Medan 2019-2024JenisJenisUnikameral Jangka waktu5 tahunSejarahSesi baru dimulai16 September 2019PimpinanKetuaHasyim, S.E. (PDI-P) sejak 8 November 2019 Wakil Ketua IH. Ihwan Ritonga, S.E., M.M. (Gerindra) sejak 8 November 2019 Wakil Ketua IIH. Rajuddin Sagala, S.Pd.I. (PKS) sejak 8 November 2019 Wakil Ketua IIIH. T. Bahrumsyah, S.H., M.H. (PAN) sejak 8 November 2019 KomposisiAnggota50Partai & kursiPemeri...

2020 Summer Olympics

2021 multi-sport event in Tokyo, Japan 2020 Olympics, Tokyo 2020, 2021 Olympics, and Tokyo 2021 redirect here. For the Winter Youth Olympics in Lausanne, Switzerland, see 2020 Winter Youth Olympics. For the Summer Paralympics, see 2020 Summer Paralympics. Japan 2020 and Japan 2021 redirect here. For the events in 2020 in Japan, see 2020 in Japan. For the events in 2021 in Japan, see 2021 in Japan. Games of the XXXII OlympiadEmblem of the event[a]Host cityTokyo, JapanMottoUnited by Emo...

 

 

Salsette Island

Island off the coast of Maharashtra, India Not to be confused with Salcete, Goa. This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Salsette Island – news · newspapers · books · scholar · JSTOR (March 2024) (Learn how and when to remove this template message) SalsetteThe metropolis of Mumbai and the city of Tha...

 

 

Royal Bank of Scotland

Halaman ini berisi artikel tentang sebuah bank ritel. Untuk induk perusahaannya, lihat Royal Bank of Scotland Group. Artikel ini bukan mengenai Bank of Scotland. The Royal Bank of Scotland plcBanca Rìoghail na h-AlbaJenisPublik1IndustriKeuangan dan asuransiDidirikan1727KantorpusatEdinburgh, SkotlandiaTokohkunciStephen Hester, Group CEOProdukKeuangan dan asuransiBank KonsumenBank KorporasiKaryawan141.0002IndukRoyal Bank of Scotland GroupSitus webwww.rbs.co.ukCatatan kaki / referensi1 Ana...

Памятные монеты Узбекистана

Герб Узбекистана Памятные монеты выпускаются Центральным банком Республики Узбекистан из драгоценных металлов (номиналами 10, 50, 100, 1000, 50 000 и 100 000 сумов), недрагоценных металлов (номиналами 25, 50, 100, 500 сумов), а также недрагоценных металлов, покрытых золотом (номиналами 1 и 10 ...

 

 

Victor Vernicos

Victor VernicosBiographieNaissance 23 octobre 2006 (17 ans)Athènes (Grèce)Nom dans la langue maternelle Βίκτωρ ΒερνίκοςNoms de naissance Victor Vernicos Jørgensen, Βίκτορ Βερνίκος ΓιούργκενσενNationalité grecqueActivités Chanteur, auteur-compositeurmodifier - modifier le code - modifier Wikidata Victor Vernicos Jørgensen (en grec moderne : Βίκτορ Βερνίκος Γιούργκενσεν ; né le 23 octobre 2006) est un auteur...

 

 

Pošta Srbije

JP Pošta SrbijeNative nameЈП Пошта Србије / JP Pošta SrbijeFormerlyJP PTT Saobraćaja SrbijaCompany typeState-owned enterpriseIndustryPostal service courierFounded28 December 1989; 34 years ago (1989-12-28) (Current form)7 June 1840; 183 years ago (1840-06-07) (Founded)HeadquartersTakovska 2, Belgrade, SerbiaKey peopleZoran Đorđević (CEO)ServicesLetter post, parcel service, EMS, delivery, freight forwarding, third-party logisticsRevenue �...

Scottish Gaelic-medium education

Education delivered in Scottish Gaelic Sgoil Ghàidhlig Ghlaschu, or Glasgow Gaelic School, is the largest provider of Gaelic-medium education in Scotland in terms of pupils Scottish Gaelic-medium education (Scottish Gaelic: Foghlam tro Mheadhan na Gàidhlig; FTG), also known as Gaelic-medium education (GME), is a form of education in Scotland that allows pupils to be taught primarily through the medium of Scottish Gaelic, with English being taught as the secondary language. Gaelic-medium edu...

 

 

Journal of Chemical Information and Modeling

Academic journalJournal of Chemical Information and ModelingDisciplineComputational Chemistry and CheminformaticsLanguageEnglishEdited byKenneth M. Merz Jr.Publication detailsFormer name(s)Journal of Chemical Documentation, Journal of Chemical Information and Computer SciencesHistory1961-presentPublisherAmerican Chemical Society (United States)FrequencyMonthlyImpact factor5.6 (2022)Standard abbreviationsISO 4 (alt) · Bluebook (alt1 · alt2)NLM (alt) &...

 

 

1952 United States presidential election in Wisconsin

Election in Wisconsin Main article: 1952 United States presidential election 1952 United States presidential election in Wisconsin ← 1948 November 4, 1952 1956 →   Nominee Dwight D. Eisenhower Adlai Stevenson Party Republican Democratic Home state New York[1] Illinois Running mate Richard Nixon John Sparkman Electoral vote 12 0 Popular vote 979,744 622,175 Percentage 60.95% 38.71% County Results Eisenhower   50-60%   6...

RV Atlantic Explorer

RV Atlantic Explorer Atlantic Explorer at the dock in Bermuda History Bermuda Name Seward Johnson II (1982–2006) Bank of Bermuda Atlantic Explorer (2006–) Owner Harbor Branch Oceanographic Institute (1982–2005) Bermuda Institute of Ocean Sciences (2005–) Launched1982 Identification IMO number: 8120014 MMSI number: 303591000 Callsign: WDC9417 StatusActive General characteristics Class and typeABS TypeOceanographic survey vessel Tonnage299 Displacement 790 tons (light) 1281 tons (...

 

 

Webster County, Georgia

County in Georgia, United States For other uses, see Webster County (disambiguation). County in GeorgiaWebster CountyCountyCounty courthouse in PrestonLocation within the U.S. state of GeorgiaGeorgia's location within the U.S.Coordinates: 32°03′N 84°33′W / 32.05°N 84.55°W / 32.05; -84.55Country United StatesState GeorgiaFoundedDecember 16, 1853; 170 years ago (1853-12-16)Named forDaniel WebsterSeatPrestonLargest communityPrestonArea&...

 

 

Federico Guillermo I de Prusia

Federico Guillermo I de Prusia Información personalNombre en alemán Friedrich Wilhelm I. Nacimiento 14 de agosto de 1688 Berlín (Brandeburgo-Prusia) Fallecimiento 31 de mayo de 1740 (51 años)Palacio de la Ciudad de Potsdam (Alemania) Sepultura Church of Peace Residencia Berlín Religión Calvinismo FamiliaFamilia Casa de Hohenzollern Padres Federico I de Prusia Sofía Carlota de Hanóver Cónyuge Sofía Dorotea de Hannover (1706-1740) Hijos Filipina Carlota de PrusiaSofía Dorotea de...

Division of Reid

Australian federal electoral division Australian electorate ReidAustralian House of Representatives DivisionDivision of Reid in New South Wales, as of the 2016 federal electionCreated1922MPSally SitouPartyLaborNamesakeSir George ReidElectors115,625 (2022)Area55 km2 (21.2 sq mi)DemographicInner metropolitan The Division of Reid is an Australian electoral division in the state of New South Wales. History Sir George Reid, the division's namesake The division is named after Si...

 

 

1987 European Athletics Indoor Championships – Men's high jump

1987 European Athletics Indoor ChampionshipsTrack events60 mmenwomen200 mmenwomen400 mmenwomen800 mmenwomen1500 mmenwomen3000 mmenwomen60 m hurdlesmenwomen3000 m walkwomen5000 m walkmenField eventsHigh jumpmenwomenPole vaultmenLong jumpmenwomenTriple jumpmenShot putmenwomenvte The men's high jump event at the 1987 European Athletics Indoor Championships was held on 21 February.[1][2] Results Rank Name Nationality 2.10 2.15 2.20 2.24 2.27 2.30 2.33 2.36 2.38 2.42 Result Notes ...

 

 

Party Pier station

Haizhu Tram station in Guangzhou Party Pier琶醍General informationLocationHaizhu, Guangzhou, GuangdongChinaOperated byGuangzhou Metro Co. Ltd.Line(s)     Haizhu TramHistoryOpened21 October 2015[1]Services Preceding station Guangzhou Metro Following station Liede Bridge Southtowards Canton Tower Haizhu Tram Nanfengtowards Wanshengwei Party Pier station (Chinese: 琶醍站), is a station of Haizhu Tram of the Guangzhou Metro. It started operations on 21 Oc...

Fencing at the 1976 Summer Olympics – Women's foil

Fencing at the Olympics Women's foilat the Games of the XXI OlympiadVenueUniversity of MontréalDates23 – 24 July 1976Competitors48 from 20 nationsMedalists Ildikó Schwarczenberger-Tordasi  Hungary Maria Consolata Collino  Italy Yelena Novikova-Belova  Soviet Union← 19721980 → Fencing at the1976 Summer OlympicsÉpéemenTeam épéemenFoilmenwomenTeam foilmenwomenSabremenTeam sabremenvte The women's foil was one of eight fencing events on th...

 

 

New York City (Lenny Kravitz song)

Song by Lenny Kravitz New York CitySingle by Lenny Kravitzfrom the album Strut ReleasedOctober 21, 2014GenreRockLength6:23LabelRoxieSongwriter(s) Lenny Kravitz Craig Ross Producer(s)Lenny KravitzLenny Kravitz singles chronology Sex (2014) New York City (2014) Dirty White Boots (2014) Music videoNew York City on YouTube New York City is a song by American singer Lenny Kravitz, written by Kravitz and Craig Ross. The song was released on October 21, 2014, as the third single from the Kravitz's t...