{"title":"Coupling nut","description":"\u003cp\u003e\u003cstrong\u003eStainless steel coupling nuts\u003c\/strong\u003e are used to join or extend threaded rods and bolts into a longer, continuous threaded connection. The elongated shape provides ample thread engagement and a stable, strong joint between two threaded parts.\u003c\/p\u003e\n\u003cp\u003eAvailable in hexagonal and round designs, as well as in various materials and dimensions to suit load requirements and installation space. Used in construction, industry, and marine environments where threaded rods need to be extended or connected.\u003c\/p\u003e","products":[{"product_id":"skarvmutter-a2","title":"Hexagon coupling nut | A2 | DIN 6334","description":"\u003cp\u003eDo you need a reliable nut for joining threaded rods in corrosive environments? The \u003cstrong\u003eCoupling Nut A2 \u003c\/strong\u003eDIN 6334 in A2 \/ AISI 304 stainless steel is designed to provide high strength, long durability, and corrosion resistance. It is easy to mount on threaded rods and ensures stable and vibration-resistant fastening, even under mechanical load.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003eAPPLICATION AREAS\u003c\/h2\u003e\n\u003cp\u003ePerfect for joining threaded rods in construction, industry, machinery, furniture, and outdoor structures. The coupling nut enables quick and secure connection between two threaded rods, simplifying assembly and adjustment without compromising strength or durability. Easy to install with a standard wrench and requires minimal maintenance.\u003c\/p\u003e\n\u003ch2 class=\"MsoNormal\"\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eProduct type:\u003c\/strong\u003e Coupling nut\u003cbr\u003e\u003cstrong\u003eStandard:\u003c\/strong\u003e DIN 6334\u003cbr\u003e\u003cstrong\u003eQuality:\u003c\/strong\u003e A2 \/ AISI 304 stainless steel\u003cbr\u003e\u003cstrong\u003eMaterial class:\u003c\/strong\u003e A2-70\u003cbr\u003e\u003cstrong\u003eThread type:\u003c\/strong\u003e Metric ISO thread\u003cbr\u003e\u003cstrong\u003eSurface treatment:\u003c\/strong\u003e Untreated (natural stainless steel)\u003cbr\u003e\u003cstrong\u003eHead shape:\u003c\/strong\u003e Hexagonal\u003cbr\u003e\u003cstrong\u003eGrip type:\u003c\/strong\u003e External hexagon\u003c\/p\u003e\n\u003ch2\u003eFREQUENTLY ASKED QUESTIONS (FAQ)\u003c\/h2\u003e\n\u003ch3\u003eWhat characterizes a coupling nut according to DIN 6334 and when is it the right choice?\u003c\/h3\u003e\n\u003cp\u003e\u003cb\u003eDIN 6334\u003c\/b\u003e specifies hexagonal, extended nuts with a height equivalent to three times the nominal diameter of the thread (\u003cspan class=\"math-inline\"\u003e$3 \\times D$\u003c\/span\u003e):\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSecure joining of threaded rods:\u003c\/b\u003e The long internal thread provides maximum grip and distributes the load evenly over several thread turns. This makes it ideal for extending threaded rods (DIN 976) or connecting male and female components in tensioned joints.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eMechanical stability and bending strength:\u003c\/b\u003e The extra thread length prevents the screw joint from wobbling, fatiguing, or unscrewing under mechanical tensile and compressive loads.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eStandardized tool grip:\u003c\/b\u003e The external hexagonal shape has the same wrench size as corresponding standard nuts, allowing you to easily use standard open-ended wrenches, sockets, or torque wrenches during assembly.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eWhy is stainless steel A2 (AISI 304) the right material choice for outdoor joining?\u003c\/h3\u003e\n\u003cp\u003eWhen threaded rods are assembled at height or enclosed in structures, corrosion resistance is crucial for the longevity of the joint:\u003c\/p\u003e\n\u003cul\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eLong-lasting rust protection:\u003c\/b\u003e A2 steel (1.4301 \/ AISI 304) withstands rain, snow, outdoor environments, and damp spaces without forming rust or weakening.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSmooth thread engagement:\u003c\/b\u003e Stainless threads stay free of corrosion products that might otherwise cause a coupling nut to seize mid-way along a long threaded rod during assembly.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eReliable function over time:\u003c\/b\u003e Unlike electro-galvanized coupling nuts, there is no surface coating that can be scraped off when the nut is threaded over long distances.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ul\u003e\n\u003ch3\u003eHow do you install a coupling nut correctly for maximum strength?\u003c\/h3\u003e\n\u003col start=\"1\"\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eCenter the joint:\u003c\/b\u003e Screw both threaded rods in exactly the same distance from each side so they meet in the middle of the coupling nut. This utilizes \u003cspan class=\"math-inline\"\u003e1.5xD \u003c\/span\u003eof thread length for each rod, ensuring full tensile strength.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eAvoid overtightening:\u003c\/b\u003e Use the correct wrench size and tighten evenly. We recommend using thread lubricant\/assembly paste for stainless steel to prevent \u003ci\u003egalling\u003c\/i\u003e during long thread engagement.\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\u003cli\u003e\n\n\u003cp\u003e\u003cb\u003eSupplement with a lock nut for vibrations:\u003c\/b\u003e If the joint is subjected to cyclic vibrations or dynamic loads, it is recommended to lock the coupling nut at both ends with a standard hexagonal nut (DIN 934) or a lock nut (DIN 985).\u003c\/p\u003e\n\n\n\u003c\/li\u003e\n\n\n\u003c\/ol\u003e","brand":"WASI","offers":[{"title":"M5","offer_id":49584125313366,"sku":"101356","price":3.5,"currency_code":"SEK","in_stock":true},{"title":"M6","offer_id":49584114041174,"sku":"101357","price":4.0,"currency_code":"SEK","in_stock":true},{"title":"M8","offer_id":49584114073942,"sku":"101358","price":7.0,"currency_code":"SEK","in_stock":true},{"title":"M10","offer_id":49584114106710,"sku":"101359","price":12.0,"currency_code":"SEK","in_stock":true},{"title":"M12","offer_id":49584114139478,"sku":"101360","price":17.0,"currency_code":"SEK","in_stock":true},{"title":"M14","offer_id":49584114172246,"sku":"101361","price":7.0,"currency_code":"SEK","in_stock":true},{"title":"M16","offer_id":49584114205014,"sku":"101362","price":35.0,"currency_code":"SEK","in_stock":true},{"title":"M20","offer_id":49584125346134,"sku":"101363","price":60.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/7864\/1494\/files\/rostfri-nu-hexagonal-coupling-nuts-a2-stainless-steel.jpg?v=1786458776"},{"product_id":"skarvmutter-rund-a4-ws-9290","title":"Round coupling nut | A4 | WS 9290","description":"\u003cp data-start=\"517\" data-end=\"880\"\u003eDo you need a reliable nut for joining threaded rods in corrosive environments? The \u003cstrong\u003eA2 coupling nut\u003c\/strong\u003e DIN 6334 in A2 \/ AISI 304 stainless steel is designed to provide high strength, long durability, and corrosion resistance. It is easy to mount on threaded rods and ensures a stable and vibration-resistant fastening even under mechanical load.\u003c\/p\u003e\n\u003ch2 data-start=\"882\" data-end=\"1246\"\u003eField of application\u003c\/h2\u003e\n\u003cp data-start=\"882\" data-end=\"1246\"\u003ePerfect for joining threaded rods in construction, industry, machinery, furniture, and outdoor structures. The coupling nut enables a quick and secure connection between two threaded rods, simplifying assembly and adjustment without compromising strength or durability. Easy to install with a standard wrench and requires minimal maintenance.\u003c\/p\u003e\n\u003ch2 data-start=\"1248\" data-end=\"1550\"\u003eTechnical specifications\u003c\/h2\u003e\n\u003cp data-start=\"1248\" data-end=\"1550\"\u003e\u003cstrong data-start=\"1279\" data-end=\"1294\"\u003eProduct type:\u003c\/strong\u003e Coupling nut\u003cbr data-start=\"1306\" data-end=\"1309\"\u003e\u003cstrong data-start=\"1309\" data-end=\"1318\"\u003eStandard:\u003c\/strong\u003e WS 9290\u003cbr data-start=\"1327\" data-end=\"1330\"\u003e\u003cstrong data-start=\"1330\" data-end=\"1342\"\u003eGrade:\u003c\/strong\u003e A2 \/ AISI 304 stainless steel\u003cbr data-start=\"1371\" data-end=\"1374\"\u003e\u003cstrong data-start=\"1374\" data-end=\"1392\"\u003eMaterial class:\u003c\/strong\u003e A2-70\u003cbr data-start=\"1398\" data-end=\"1401\"\u003e\u003cstrong data-start=\"1401\" data-end=\"1413\"\u003eThread type:\u003c\/strong\u003e Metric ISO thread\u003cbr data-start=\"1431\" data-end=\"1434\"\u003e\u003cstrong data-start=\"1434\" data-end=\"1451\"\u003eSurface treatment:\u003c\/strong\u003e Untreated (natural stainless steel)\u003cbr data-start=\"1491\" data-end=\"1494\"\u003e\u003cstrong data-start=\"1494\" data-end=\"1508\"\u003eHead shape:\u003c\/strong\u003e Hexagon\u003cbr data-start=\"1516\" data-end=\"1519\"\u003e\u003cstrong data-start=\"1519\" data-end=\"1532\"\u003eGrip type:\u003c\/strong\u003e External hexagon\u003c\/p\u003e\n\u003ch2 data-path-to-node=\"2\"\u003eFREQUENTLY ASKED QUESTIONS (FAQ)\u003c\/h2\u003e\n\u003ch3 data-path-to-node=\"3\"\u003eWhat is a DIN 6334 coupling nut used for?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"4\"\u003eA coupling nut according to DIN 6334 is primarily used to join and extend threaded rods, studs, or screws of the same thread dimension. The nut has a length of approximately 3 times the nominal diameter (\u003cspan class=\"math-inline\" data-math=\"3 \\times D\" data-index-in-node=\"204\"\u003e$3 \\times D$\u003c\/span\u003e), which provides sufficient engagement to ensure a strong and stable threaded joint.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"5\"\u003eWhat does it mean that the coupling nut is made of A2 \/ AISI 304 stainless steel?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"6\"\u003eA2 steel (also known as AISI 304 or 1.4301) is the most common grade of stainless steel. It provides excellent corrosion protection in normal outdoor environments, humid indoor areas, and light industrial settings without exposure to saltwater or aggressive chemicals.\u003c\/p\u003e\n\u003ch3 data-path-to-node=\"7\"\u003eWhat is the difference between a DIN 6334 coupling nut and a standard hex nut?\u003c\/h3\u003e\n\u003cp data-path-to-node=\"8\"\u003eA DIN 6334 coupling nut is significantly longer than a standard hex nut (DIN 934). The extended thread length is specifically designed to handle tensile forces when two threaded components are to be connected end-to-end, unlike a standard nut, which is only intended to lock a joint.\u003c\/p\u003e","brand":"WASI","offers":[{"title":"M6 \/ 20","offer_id":53794294694230,"sku":"103263","price":6.5,"currency_code":"SEK","in_stock":true},{"title":"M6 \/ 25","offer_id":53794442346838,"sku":"103264","price":8.2,"currency_code":"SEK","in_stock":true},{"title":"M6 \/ 30","offer_id":53794442379606,"sku":"103265","price":11.7,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 25","offer_id":53794442510678,"sku":"103266","price":9.6,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 30","offer_id":53794442543446,"sku":"103267","price":10.4,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 35","offer_id":53794442576214,"sku":"103268","price":11.7,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 40","offer_id":53794442608982,"sku":"103269","price":13.7,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 50","offer_id":53794442641750,"sku":"103270","price":19.5,"currency_code":"SEK","in_stock":true},{"title":"M10 \/ 25","offer_id":53794442674518,"sku":"103271","price":11.8,"currency_code":"SEK","in_stock":true},{"title":"M10 \/ 30","offer_id":53794442707286,"sku":"103272","price":12.3,"currency_code":"SEK","in_stock":true},{"title":"M10 \/ 40","offer_id":53794442772822,"sku":"103273","price":18.0,"currency_code":"SEK","in_stock":true},{"title":"M12 \/ 30","offer_id":53794442871126,"sku":"103274","price":17.0,"currency_code":"SEK","in_stock":true},{"title":"M12 \/ 40","offer_id":53794442936662,"sku":"103275","price":22.7,"currency_code":"SEK","in_stock":true},{"title":"M12 \/ 50","offer_id":53794442969430,"sku":"103276","price":31.0,"currency_code":"SEK","in_stock":true},{"title":"M16 \/ 40","offer_id":53794443264342,"sku":"103277","price":69.0,"currency_code":"SEK","in_stock":true},{"title":"M16 \/ 50","offer_id":53794443297110,"sku":"103278","price":72.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/7864\/1494\/files\/rostfri-nu-round-coupling-nuts-stainless-steel.jpg?v=1786459023"},{"product_id":"skarvmutter-sexkant-a4-ws9300","title":"Hexagonal coupling nut | A4 | WS 9300","description":"\u003cp data-start=\"368\" data-end=\"706\"\u003e\u003cstrong\u003eHexagon coupling nut in A4\u003c\/strong\u003e is intended for joining and extending externally threaded components in corrosive environments. The product according to WS 9300 is used where a safe and stable threaded connection between two threaded parts is required. It is suitable for professional installations where long service life and consistent performance are crucial.\u003c\/p\u003e\n\u003ch2 data-section-id=\"1v1fo6z\" data-start=\"708\" data-end=\"728\"\u003eFIELD OF APPLICATION\u003c\/h2\u003e\n\u003cp data-start=\"730\" data-end=\"1008\"\u003eThe product is used in marine environments, industrial installations, construction, and outdoor applications. It is intended for applications where two threaded components need to be joined or extended and where the choice of material provides the necessary protection against corrosion and mechanical stress.\u003c\/p\u003e\n\u003ch2 data-section-id=\"s6f2sj\" data-start=\"1010\" data-end=\"1037\"\u003eTECHNICAL SPECIFICATIONS\u003c\/h2\u003e\n\u003cp data-start=\"1039\" data-end=\"1296\"\u003e\u003cstrong data-start=\"1039\" data-end=\"1054\"\u003eProduct type:\u003c\/strong\u003e Nut\u003cbr data-start=\"1061\" data-end=\"1064\"\u003e\u003cstrong data-start=\"1064\" data-end=\"1082\"\u003eProduct family:\u003c\/strong\u003e Hexagon coupling nut\u003cbr data-start=\"1102\" data-end=\"1105\"\u003e\u003cstrong data-start=\"1105\" data-end=\"1123\"\u003eMaterial class:\u003c\/strong\u003e A4\u003cbr data-start=\"1126\" data-end=\"1129\"\u003e\u003cstrong data-start=\"1129\" data-end=\"1151\"\u003eStrength class:\u003c\/strong\u003e Not specified\u003cbr data-start=\"1167\" data-end=\"1170\"\u003e\u003cstrong data-start=\"1170\" data-end=\"1183\"\u003eStandard:\u003c\/strong\u003e WS 9300\u003cbr data-start=\"1191\" data-end=\"1194\"\u003e\u003cstrong data-start=\"1194\" data-end=\"1208\"\u003eDesign:\u003c\/strong\u003e Hexagonal coupling nut\u003cbr data-start=\"1230\" data-end=\"1233\"\u003e\u003cstrong data-start=\"1233\" data-end=\"1243\"\u003eEnvironment:\u003c\/strong\u003e Marine \/ Outdoor \/ Indoor\u003cbr data-start=\"1269\" data-end=\"1272\"\u003e\u003cstrong data-start=\"1272\" data-end=\"1290\"\u003eDelivery unit:\u003c\/strong\u003e Piece\u003c\/p\u003e\n\u003ch2 data-section-id=\"9ow1qb\" data-start=\"1298\" data-end=\"1321\"\u003eFREQUENTLY ASKED QUESTIONS (FAQ)\u003c\/h2\u003e\n\u003ch3 data-section-id=\"2jyzf8\" data-start=\"1323\" data-end=\"1367\"\u003eWhat is a hexagon coupling nut used for?\u003c\/h3\u003e\n\u003cp data-start=\"1369\" data-end=\"1521\"\u003eA coupling nut is used to join two externally threaded components, such as threaded rods, to create a longer, continuous connection.\u003c\/p\u003e\n\u003ch3 data-section-id=\"9s6nbn\" data-start=\"1523\" data-end=\"1557\"\u003eWhy choose material class A4?\u003c\/h3\u003e\n\u003cp data-start=\"1559\" data-end=\"1745\"\u003eA4 is an acid-proof stainless steel with high corrosion resistance. The material is particularly well-suited for marine environments, coastal installations, and other damp or aggressive environments.\u003c\/p\u003e\n\u003ch3 data-section-id=\"1d60ckp\" data-start=\"1747\" data-end=\"1785\"\u003eCan the coupling nut be used outdoors?\u003c\/h3\u003e\n\u003cp data-start=\"1787\" data-end=\"1908\"\u003eYes. Thanks to material class A4, the product is intended for both outdoor use and environments where high corrosion resistance is required.\u003c\/p\u003e\n\u003ch3 data-section-id=\"odux8g\" data-start=\"1910\" data-end=\"1975\"\u003eWhat type of components can be joined with a coupling nut?\u003c\/h3\u003e\n\u003cp data-start=\"1977\" data-end=\"2101\"\u003eThe coupling nut is normally used together with threaded rods, studs, or other components with a compatible external thread.\u003c\/p\u003e\n\u003ch3 data-section-id=\"a26hvh\" data-start=\"2103\" data-end=\"2148\"\u003eWhat is the advantage of a hexagonal design?\u003c\/h3\u003e\n\u003cp data-start=\"2150\" data-end=\"2296\" data-is-last-node=\"\" data-is-only-node=\"\"\u003eThe hexagonal design enables easy assembly and disassembly with standard tools while allowing a secure tightening torque to be applied.\u003c\/p\u003e","brand":"WASI","offers":[{"title":"M6 \/ 20","offer_id":54054761333078,"sku":"104409","price":6.5,"currency_code":"SEK","in_stock":true},{"title":"M6 \/ 25","offer_id":54054763823446,"sku":"104410","price":5.5,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 20","offer_id":54054761365846,"sku":"104411","price":6.0,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 25","offer_id":54054763987286,"sku":"104412","price":8.5,"currency_code":"SEK","in_stock":true},{"title":"M8 \/ 30","offer_id":54054764020054,"sku":"104413","price":11.5,"currency_code":"SEK","in_stock":true},{"title":"M10 \/ 25","offer_id":54054764151126,"sku":"104414","price":12.0,"currency_code":"SEK","in_stock":true},{"title":"M10 \/ 40","offer_id":54054764216662,"sku":"104415","price":19.0,"currency_code":"SEK","in_stock":true},{"title":"M12 \/ 30","offer_id":54054764347734,"sku":"104416","price":16.0,"currency_code":"SEK","in_stock":true},{"title":"M12 \/ 40","offer_id":54054764380502,"sku":"104417","price":20.0,"currency_code":"SEK","in_stock":true},{"title":"M12 \/ 50","offer_id":54054764413270,"sku":"104418","price":25.0,"currency_code":"SEK","in_stock":true},{"title":"M16 \/ 40","offer_id":54054764544342,"sku":"104419","price":30.0,"currency_code":"SEK","in_stock":true},{"title":"M16 \/ 50","offer_id":54054764577110,"sku":"104420","price":35.0,"currency_code":"SEK","in_stock":true},{"title":"M20 \/ 50","offer_id":54054764740950,"sku":"104421","price":55.0,"currency_code":"SEK","in_stock":true},{"title":"M24 \/ 20","offer_id":54054763364694,"sku":null,"price":4.0,"currency_code":"SEK","in_stock":false},{"title":"M24 \/ 25","offer_id":54054764806486,"sku":null,"price":4.0,"currency_code":"SEK","in_stock":false},{"title":"M24 \/ 30","offer_id":54054764839254,"sku":null,"price":4.0,"currency_code":"SEK","in_stock":false},{"title":"M24 \/ 40","offer_id":54054764872022,"sku":null,"price":4.0,"currency_code":"SEK","in_stock":false},{"title":"M24 \/ 50","offer_id":54054764904790,"sku":null,"price":4.0,"currency_code":"SEK","in_stock":false},{"title":"M24 \/ 60","offer_id":54054764937558,"sku":null,"price":4.0,"currency_code":"SEK","in_stock":false},{"title":"M30 \/ 60","offer_id":54054765101398,"sku":"104422","price":210.0,"currency_code":"SEK","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/7864\/1494\/files\/skarvmutter-rostfri-A2-DIN6334_5b3f26b1-30e7-4cbd-b0b0-79e92b8dd7d7.jpg?v=1786458884"}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0776\/7864\/1494\/collections\/rostfri-nu-hexagonal-coupling-nuts-a2-stainless-steel.jpg?v=1790097134","url":"https:\/\/rostfri.nu\/en\/collections\/skarvmutter.oembed","provider":"Rostfri.nu","version":"1.0","type":"link"}