Kitajska veleprodajna cena M6 M8 M10 M12 križni gradbeni vijak lesa glavo vijaka Cr nerjavečega jekla Ss 304 proizvajalec in dobavitelj | Ruiye

Trgovina na debelo cena M6 M8 M10 M12 križni gradbeni vijak lesa glavo vijak cr nerjavečega jekla Ss 304

Kratek opis:

Material: ogljikovo jeklo Q195, Q235 / nerjavno jeklo

Velikost: M6 M8 M10 M12 M16…

Dolžina: 25 mm-160 mm…

Površinska obdelava: pocinkano


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Vedno nenehno vam ponujamo najbolj vestno storitev za stranke in najširšo paleto modelov in stilov z najkvalitetnejšimi materiali. Ti poskusi vključujejo razpoložljivost prilagojenih modelov s hitrostjo in odpremo za veleprodajno ceno M6 M8 M10 M12 križni gradbeni vijak za glavo vijaka za glavo Cr iz nerjavečega jekla Ss 304, kot glavno odgovornost smo postavili pošteno in zdravje. Imamo profesionalno mednarodno trgovinsko ekipo, ki je diplomirala iz Amerike. Smo vaš naslednji poslovni partner.
Vedno nenehno vam ponujamo najbolj vestno storitev za stranke in najširšo paleto modelov in stilov z najkvalitetnejšimi materiali. Ti poskusi vključujejo razpoložljivost prilagojenih modelov s hitrostjo in odpremo za Bs 1210 Wood Screw ,Vijaki za lesene vijake ,vijak za , Our skilled engineering group will always be ready to serve you for consultation and feedback. We are able to also offer you with absolutely free samples to meet your requirements. Finest efforts will likely be produced to offer you the ideal service and items. For anyone who is thinking about our company and merchandise, remember to contact us by sending us emails or contact us quickly. As a way to know our merchandise and firm. lot more, you can come to our factory to find out it. We are going to always welcome guests from all over the world to our business to build company relations with us. Remember to feel free to get in touch with us for business and we believe we've been going to share the top trading practical experience with all our merchants.
Vijak:

Vijak je vrsta pritrdilnega sredstva, na nek način podoben vijaku, običajno izdelan iz kovine, za katerega je značilen spiralni greben, znan kot  moški navoj  (zunanja nit). Vijaki se uporabljajo za pritrditev materialov s kopanjem in vtaknitvijo v material, ko so obrnjeni, medtem ko nit vrezane utore v pritrjeni material, kar lahko pomaga pri povlečenju pritrjenih materialov skupaj in prepreči izvlečenje. Obstaja veliko vijakov za različne materiale; tisti, ki jih običajno privijte z vijaki, vključujejo les, pločevino in plastiko.

Vijak ima običajno  glavo, ki vsebuje posebej oblikovano obliko, ki omogoča, da se poganja . Običajna orodja za vijake vključujejo izvijače in ključe. Glava je ponavadi večja od telesa vijaka, kar preprečuje, da se vijak poganja globlje od dolžine vijaka in da zagotavlja  nosilno površino

Vijak za les:

Zgodnji vijaki za les so bili narejeni ročno, z vrsto datotek, dleta in drugih rezalnih orodij, ki jih je mogoče zlahka opaziti, če opazite nepravilen razmik in obliko navojev, pa tudi oznake datotek, ki ostanejo na glavi vijaka in na območju med nitmi. Mnogi od teh vijakov so imeli tup konec, popolnoma pa niso imeli ostre konice na skoraj vseh sodobnih vijakih za les. Sčasoma so stružnice uporabile za izdelavo vijakov za les, najzgodnejši patent je bil zabeležen leta 1760 v Angliji. V 1850-ih so bila razvita orodja za menjavo, da bi zagotovila bolj enotno in dosledno nit. Vijaki, narejeni s tem orodjem, imajo zaobljene doline z ostrimi in hrapavimi niti. Nekateri vijaki za les so bili narejeni z rezalnimi matricami že v poznih 1700-ih letih (morda celo pred letom 1678, ko je bila vsebina knjige prvič objavljena po delih).

Ko so bili stroji za struženje vijakov v splošni uporabi, je bila s to metodo izdelana večina komercialno dostopnih vijakov za les. Ti rezani vijaki za les so skoraj vedno zoženi, in tudi če ni koničasta noga očitna, jih je mogoče opaziti, ker niti ne segajo čez premer kraka. Takšne vijake je najbolje namestiti po vrtanju pilotske luknje s koničnim svedrom. Večina sodobnih vijakov za les, razen tistih iz medenine, je oblikovanih na valjanih strojih z navojem. Ti vijaki imajo stalen premer, niti z večjim premerom kot drog in so močnejši, ker postopek valjanja ne reže zrna kovine.


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