Vijak: Razlika med redakcijama

[[Slika:screws.jpg|frame|Vijaki različnih oblik]]

[[Slika:Screw drive types.png|frame]]

== Zunanje povezave ==

{{Wikislovar|vijak|Vijak}}

*[http://www.lara.com/reviews/screwtypes.htm Lara Tools screw types] - specialty tool dealer documents more than two dozen different screw heads, along with their drivers

*[http://www.boltscience.com Bolt Science] - commercial site provides detailed introduction to bolting, including software programs for selecting a particular fastener and for determining the stress on a bolt.

*[http://www.boltdepot.com/fastener-information/Bolt-Grade-Chart.aspx boltdepot.com] Bolt Grade Markings and Strength Chart American & Metric

 

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