China Excelente calidade pequeno gran de aceiro inoxidable Parafuso de madeira Fabricantes e provedores | Ruiye

Excelente calidade pequeno gran inoxidable Parafuso de madeira de aceiro

Descrición curta:

Material: Q195 aceiro carbono, aceiro Q235 / inoxidable

Tamaño: M6 M8 M10 M12 M16 ...

Lonxitude: 25mm-160 milímetros ...

Revestimento de superficie: galvanizado


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Which has a positive and progressive attitude to customer's fascination, our company repeatedly improves our products quality to meet the desires of consumers and further focuses on safety, reliability, environmental requirements, and innovation of Excellent quality Big Small Stainless Steel Wood Screw, Welcome your enquiry, most effective service will likely be provided with full heart.
Which has a positive and progressive attitude to customer's fascination, our company repeatedly improves our products quality to meet the desires of consumers and further focuses on safety, reliability, environmental requirements, and innovation of Big Wood Screw ,Tornillos M8x1.5 ,pequeno Wood Screw, A nosa empresa concentrarse no desenvolvemento do mercado internacional. Agora temos unha morea de clientes en Rusia, os países europeos, Estados Unidos, os países de Oriente Medio e países de África. Nós seguimos sempre que a calidade é a base mentres o servizo é garantía para atender a todos os clientes.
parafuso:

Un parafuso é un tipo de fixador, de certa forma semellante a un parafuso, normalmente feitas de metal, e caracterízanse por unha crista helicoidal, coñecida como unha  rosca macho  (rosca externa). Os parafusos son usados para prender materiais de escavación en cuña e nun material cando está conectado, mentres que as rañuras corta o fío no material prendido que pode axudar a tirar materiais fixados en conxunto e evitar pull-out. Existen moitos parafusos para unha variedade de materiais; aqueles normalmente fixado por parafusos inclúen madeira, folla de metal e plástico.

Un parafuso terá xeralmente unha  cabeza  nunha extremidade que contén unha forma especialmente formado que permite que sexa xirado, ou  accionado , cunha ferramenta. Ferramentas comúns para tornillos de condución inclúen claves de fenda e chaves. A cabeza é xeralmente maior que o corpo do parafuso, o que mantén o parafuso de ser impulsada máis profundo do que a lonxitude do parafuso e para proporcionar unha  superficie de apoio

parafuso de madeira:

parafusos de madeira iniciais foron feitos a man, cunha serie de arquivos, formões e outras ferramentas de corte, e estes poden ser vistos facilmente por referirse a paso irregular e forma dos fíos, así como marcas de arquivo resto na cabeza do parafuso e na zona entre as roscas. Moitos destes parafusos tivo un fin brusco, falta por completo o punto cónico acentuada en case todos os parafusos de madeira modernos. Finalmente, tornos foron usadas para a fabricación de parafusos de madeira, co máis antigo de patente a ser gravada en 1760 en Inglaterra. Durante a década de 1850 ferramentas de estampación foron desenvolvidos para proporcionar un fío máis uniforme e coherente. Parafusos feitos con estas ferramentas teñen vales redondeados con temas afiadas e ásperas. Algúns parafusos de madeira feitas con matrices de corte tan cedo como o final de 1700 (posiblemente antes de 1678, cando o contido do libro publicouse por primeira vez en partes).

Xa que as máquinas de rosca transformando estaban en uso común, parafusería de madeira máis dispoñibles comercialmente producíronse con este método. Estes parafusos de corte de madeira son case invariablemente afunilada, e mesmo cando a hasta afunilada non é obvia, que pode ser discernido porque as roscas non estenderse máis aló do diámetro da espiga. Estes parafusos son mellores instalado tras a perforación dun orificio piloto cunha broca afilada. A maioría dos parafusos de madeira modernos, excepto para aquelas feitas de latón, fórmanse en máquinas de laminados. Estes parafusos teñen un diámetro constante, as roscas cun diámetro maior que a hasta, e son máis fortes, xa que o proceso de laminagem non corta o gran do metal.


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