https://www.turvanasta.com/home daily 1.0 2025-09-16 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591175407552-U8JSMZJ189G2G99U0QZ2/Tn_N15.jpg Home - A long history… Over the past forty years Turvanasta has made several important stud innovations. The best of these have become stud classics that still inspire many stud models – both our own and those of others. Being the most innovative actor in the industry is something we take pride in. We also acknowledge that bringing world-class products to the market is not a ”one man show”. The most successful studs have always been a result of a tight collaboration with our clients and a cross-functional activity inhouse. https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1590649971751-FIZUO32I0Z90E6HFI5BI/tn-home-02.jpg Home - This is how we do it Our people know that cutting edge products require a cutting edge attitude. An attitude that leads to excellence in every area of operations. This is why we continuously train our people and strive for a tight and agile organization where innovativeness, manufacturability and high quality are the key performance indicators. All while being commited to the idea that sustainability has to drive every successful company . https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591600710773-W7Y8UHIIZJMXQIETJUJF/highlight-ball-iso.png Home https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591600583774-CZ9YF2F3OLBAAECD8AQE/highlight-ball-number.png Home https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591600729245-AV0XWTT5MOHL1MYW3LIL/highlight-ball-trusted.png Home https://www.turvanasta.com/production daily 0.75 2020-06-17 https://www.turvanasta.com/contact daily 0.75 2026-02-09 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1597754244802-Q4F26N1WWDFWM1G929CC/tn-mikko-salakari.jpg Contact Mikko Salakari CEO mikko.salakari@turvanasta.fi +358 400 374 444 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1597741403933-EBCWMCIS1BTHZI0BBD9Y/tn-matti-linna.jpg Contact Matti Linna Head of business development matti.linna@turvanasta.fi +358 40 827 6994 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812516474-P0JLYDU9AYDBJ1K9JFI7/tn-heli-seppanen.jpg Contact Heli Seppänen Head of finance heli.seppanen@turvanasta.fi +358 40 772 2106 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812536485-91FUWNCJGLTESCBE4ADS/tn-jouni-tenko.jpg Contact Jouni Tenko Head of stud production jouni.tenko@turvanasta.fi +358 50 597 4095 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/80d76919-d254-4fa5-8f56-d60fb17c78f2/Olli_Rantanen_1-1.jpg Contact Olli Rantanen Maintenance engineer olli.rantanen@turvanasta.fi +358 44 349 2853 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812569277-8KW7MXOHOJ4II95V24FI/tn-toni-laanti.jpg Contact Toni Laanti Operations development manager toni.laanti@turvanasta.fi +358 400 821 575 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812586608-C0XJEMI638H00VY25ECI/tn-markus-saarinen.jpg Contact Markus Saarinen Site manager, Coldforming markus.saarinen@turvanasta.fi https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812476576-OSXT44AQXEQFJXMSLVBK/tn-vesa-matti-kohonen.jpg Contact Vesa-Matti Kohonen Site manager, Tungsten carbide production vesa-matti.kohonen@turvanasta.fi +358 50 592 0732 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1597754219115-MW0XCD7BSAVZ2LK8B5RV/tn-pasi-tiainen.jpg Contact Pasi Tiainen Manager, Tools pasi.tiainen@turvanasta.fi +358 400 137 822 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812641213-BQKLQ3Z3ZFZRJ25F7JRR/tn-vesa-suomela.jpg Contact Vesa Suomela Tooling department engineer vesa.suomela@turvanasta.fi +358 50 597 3560 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/f6f43e34-96f9-4752-8572-11a63a9d505f/l.jpg Contact - Make it stand out Kimmo Mattila Maintenance manager kimmo.mattila@turvanasta.fi https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812608050-N36ORK29TVMNPK537ZH4/tn-sami-hyokki.jpg Contact Sami Hyökki Chief technical officer sami.hyokki@turvanasta.fi +358 40 801 9070 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812623162-QW0ZCK57PO7DMNAZ8OOA/tn-reko-laine.jpg Contact Reko Laine Head of R&D reko.laine@turvanasta.fi +358 440 589 999 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/8f63f984-bfb7-4a42-b15c-3e0c019f2126/Uusiperhe_Jesse.JPG Contact Jesse Uusiperhe Quality manager jesse.uusiperhe@turvanasta.fi +358 45 856 6809 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/7b84f195-5a1c-40d2-936c-91e0a029f7d3/Ilpo_Lepp%C3%A4_Iso.jpg Contact Ilpo Leppä Head of Purchasing & Logistics Ilpo.leppa@turvanasta.fi +358 40 052 6642 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1592812707058-0C8J1PUCRTNDYIFFJI90/tn-eija-potinkara.jpg Contact Eija Potinkara HR eija.potinkara@turvanasta.fi +358 50 477 0184 https://www.turvanasta.com/passenger-cars daily 0.75 2020-08-26 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591871895247-P40431FIQO6PT0WQXARA/Turvanasta_N16.jpg Passenger cars - 8-10/2A Stud body: Aluminium Stud weight: < 0.90 g Stud length: 10 mm Stud flange: 8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591872028311-T7VAIM3ICXXNMBUR3DQA/Turvanasta_N14.jpg Passenger cars - 8-11/2A Stud body: Aluminium Stud weight: < 0.95 g Stud length: 11 mm Stud flange: 8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591872051138-FFXVTQZ7FQATBAEONH46/Turvanasta_N15.jpg Passenger cars - 8-10/2T Stud body: Steel Stud weight: < 2.0 g Stud length: 10 mm Stud flange: 7.8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591872076514-WVLGSNHH4SSBA0JOYN99/Turvanasta_N13.jpg Passenger cars - 8-11/2T Stud body: Steel Stud weight: < 2.1 g Stud length: 11 mm Stud flange: 7.8 mm https://www.turvanasta.com/vans daily 0.75 2020-08-27 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591872744005-9SBFIUTIIAJ4X4YV92MZ/Turvanasta_N12.jpg Vans - 8-11/3N Stud body: Steel Stud weight: < 2.2 g Stud length: 11 mm Stud flange: 7.8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591874858203-7P2CMO51D1X78URB4H7X/Turvanasta_N11.jpg Vans - 8-12/3N Stud body: Steel Stud weight: < 2.3 g Stud length: 12 mm Stud flange: 7.8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591874926095-SYLTX02KJET9UNB2Z6CM/Turvanasta_N8.jpg Vans - 8-13/3N Stud body: Steel Stud weight: < 2.5 g Stud length: 13 mm Stud flange: 8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591874947530-LIKG9Y091X3WZ6O61EAC/Turvanasta_N10.jpg Vans - 8-12/2T Stud body: Steel Stud weight: < 2.3 g Stud length: 12 mm Stud flange: 8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591875012124-BXXV5A4BXN3VP0RX34DA/Turvanasta_N7.jpg Vans - 8-13/2T Stud body: Steel Stud weight: < 2.6 g Stud length: 13 mm Stud flange: 8 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591875049058-BAWIU7AQDEOFZC2QCR3M/Turvanasta_N6.jpg Vans - 9-15/2 Stud body: Steel Stud weight: < 3.3 g Stud length: 15 mm Stud flange: 9 mm https://www.turvanasta.com/trucks daily 0.75 2020-08-26 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591877567604-ODAN354EUE4K13FBOR2X/Turvanasta_N5.jpg Trucks & buses - 11-15/2 Stud body: Steel Stud weight: < 5.0 g Stud length: 15 mm Stud flange: 11 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591877815489-JZRB7MWIYRMLPNMC700J/Turvanasta_N4.jpg Trucks & buses - 12-17/2 Stud body: Steel Stud weight: < 5.0 g Stud length: 15 mm Stud flange: 11 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591877897664-7UN8DUF3G23O36JHT394/Turvanasta_N1.jpg Trucks & buses - 12-20/2 Stud body: Steel Stud weight: < 8.2 g Stud length: 20 mm Stud flange: 12 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591877954101-T7QRHYAXU2PSI902SCND/Turvanasta_N3.jpg Trucks & buses - 15-19/2 Stud body: Steel Stud weight: < 13 g Stud length: 19 mm Stud flange: 15 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591878032962-55P79JAJO0JR9PLMFF3A/Turvanasta_N2.jpg Trucks & buses - 16-19/2 Stud body: Steel Stud weight: < 13.4 g Stud length: 19 mm Stud flange: 16 mm https://www.turvanasta.com/bicycles-and-special-studs daily 0.75 2020-08-26 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591881176858-GVGZ3S1CKRQNQ678BIFN/Turvanasta_N18.jpg Bicycles and special studs - 6.5-5.5/1 Stud body: Steel Stud weight: < 0.6 g Stud length: 5.5 mm Stud flange: 6.5 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591881221768-VY2FCHH97BXB3VOSQATI/Turvanasta_N17.jpg Bicycles and special studs - 6.5-5.8/1 TK Stud body: Steel Stud weight: < 0.55 g Stud length: 5.8 mm Stud flange: 6.5 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591881221768-VY2FCHH97BXB3VOSQATI/Turvanasta_N17.jpg Bicycles and special studs - 6.5-5.8/1 ALU TK Stud body: Aluminium Stud weight: < 0.3 g Stud length: 5.8 mm Stud flange: 6.5 mm https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591881119741-FA4RYA028RZWPYSGAYW9/Turvanasta_N9.jpg Bicycles and special studs - 8-12.5/2S Stud body: Steel Stud weight: < 2.15 g Stud length: 12.5 mm Stud flange: 7.8 mm https://www.turvanasta.com/media daily 0.75 2023-09-02 https://www.turvanasta.com/privacy-policy daily 0.75 2020-07-08 https://www.turvanasta.com/development daily 0.75 2022-09-12 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/4cfebe7b-3824-43d4-879c-f900264272df/image002.jpg Development - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1590738388259-I9UXLAI86LLEKLVZGLNJ/TN-development.png Development https://www.turvanasta.com/products daily 0.75 2021-11-07 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1578997004668-8QA5DKZO6X0T7XL73WMP/products-placeholder.jpg Products PASSENGER CARS https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1598519326446-S9WEFB1JXBO067ROM0QU/products-vans-2.jpg Products VANS https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591361548017-TFX1V1HYG9MU81XOOOUY/products-trucks.jpg Products TRUCKS & TRACTORS https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591361572044-RAJTN5FGTWLLY4I0BH8Z/products-bike.jpg Products BICYCLES & SPECIAL STUDS https://www.turvanasta.com/people daily 0.75 2021-11-07 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591188715806-GDI22JW8W3PI6JXODFMT/tn-people-riku.png People This is a safe workplace and the crowd is varied and colorful in a nice way. The firm has clear goals and we are always on the move. You can see the growth with your own eyes. - Riku Helander https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591869277741-A2V2AYMNJM923CBH12DY/tn-people-samu.png People I have been working at Turvanasta for almost 5 years, and really enjoy it. Here you get to work with different things and the crowd is really nice. - Samu Merilä https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591189041070-SFPXONQ2O8RPSV4QEQ8X/tn-people-kawa.png People The work atmosphere is really nice and it is easy to get along with everybody. I like the work and it is well balanced. It is not too heavy and you manage as long as you concentrate on it. - Kawa Aliassi https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591189108075-6PQF36EWELEIJLA7LM91/tn-people-miko.png People I have been working for a quarter of a century at Turvanasta. The best thing about working here is the independency you have. - Miko Pensikkala https://www.turvanasta.com/sustainability daily 0.75 2021-11-07 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183584746-3FN9GE3I0ODR12HLVYHD/E_WEB_INVERTED_03.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183600851-ZPNOPLE87VI4JSJI1VYL/E_WEB_INVERTED_04.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183614740-U8AR3P65UMTZQ66UMAUJ/E_WEB_INVERTED_05.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183629850-UR8UGB3LU2VZPDH6AKWP/E_WEB_INVERTED_07.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183647527-DBV4SJOQ1BJ7TH0S4GEZ/E_WEB_INVERTED_09.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183817388-XDT78PQUK41S0UPOT11J/E_WEB_INVERTED_13.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183833967-5P0OF8HH50MZ4BIQE80V/E_WEB_INVERTED_14.png Sustainability https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591183662511-202B71NOQCIBC7MZB95R/E_WEB_INVERTED_17.png Sustainability https://www.turvanasta.com/quality daily 0.75 2023-12-09 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591261976897-VTDGBH7H470LMYFUO1IP/tn-road.jpg Quality https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1591359992971-KXI6X9Y7S95TGYSKWO17/tn-lab2.jpg Quality https://www.turvanasta.com/quality-complaint daily 0.75 2020-08-28 https://www.turvanasta.com/order-form daily 0.75 2020-08-28 https://www.turvanasta.com/cookie-policy daily 0.75 2020-07-08 https://www.turvanasta.com/qapage daily 0.75 2022-11-27 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/1e4afe1b-6236-4de5-a922-49c3ff4dd420/Namnl%C3%B6s.png Q&A - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/cfd77fe8-7b6f-4419-b289-2f1c5c59b80b/KATUP%C3%96LY.png Q&A - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/0050d068-00a1-44ef-97ff-82dd3d4dc5bc/ILMANLAATU.png Q&A - Make it stand out Whatever it is, the way you tell your story online can make all the difference. https://www.turvanasta.com/documentation daily 0.75 2025-07-14 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/44ed5c11-3109-4dc1-b71f-9861c0f72e17/noun-document-5383157-0C2340.png Documentation Certificate of Approval ISO 14001 ISO 9001 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/44ed5c11-3109-4dc1-b71f-9861c0f72e17/noun-document-5383157-0C2340.png Documentation Conflict Mineral Statement https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/44ed5c11-3109-4dc1-b71f-9861c0f72e17/noun-document-5383157-0C2340.png Documentation Sertifikaatti ISO 14001 ISO 9001 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/44ed5c11-3109-4dc1-b71f-9861c0f72e17/noun-document-5383157-0C2340.png Documentation Laatu- ja ympäristöpolitiikka https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/44ed5c11-3109-4dc1-b71f-9861c0f72e17/noun-document-5383157-0C2340.png Documentation Sustainability Report https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/44ed5c11-3109-4dc1-b71f-9861c0f72e17/noun-document-5383157-0C2340.png Documentation Quality and Environmental Policy https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/e6a836d7-6077-449d-8333-91ffc5cfd2f9/noun-document-5383157-0C2340.png Documentation Accreditation Certificate https://www.turvanasta.com/join-us daily 0.75 2025-01-09 https://images.squarespace-cdn.com/content/v1/5e1d7c0ead306608b4716dd4/95be46ed-480b-4621-be04-4e183436131a/2mRZf92EGbkPiYewLOXPGeQRAkObCOvAHqHviUK0.jpg Join us Avoimet Työpaikat/Open Positions