China 2019 New Style Hex Long Screw Wood Manufacturer & Supplier | Ruiye

2019 Gaya Baru Hex Long Wood Screw

Penerangan Ringkas:

Bahan: keluli karbon Q195, Q235 / keluli tahan karat

Saiz: M6 M8 M10 M12 M16 ...

Panjang: 25mm-160mm ...

kemasan permukaan: galvanized


Detail produk

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We're convinced that with joint endeavours, the business between us will bring us mutual benefits. We are able to guarantee you products high quality and competitive value for 2019 New Style Hex Long Wood Screw , Kami memainkan peranan utama dalam memberikan pelanggan dengan barangan berkualiti baik pembekal yang hebat dan caj yang agresif.
We're convinced that with joint endeavours, the business between us will bring us mutual benefits. We are able to guarantee you products high quality and competitive value for Hex Head Screw Wood ,Long Wood Screw ,kayu skru , Customer satisfaction is our goal. We've been looking forward to cooperating with you and providing our best services to suit your needs. We warmly welcome you to contact us and you should feel free to contact us. Browse our online showroom to see what we can do for you personally. And then E-mail us your specifications or inquiries today.
skru:

Skru A adalah sejenis pengikat, dalam beberapa cara yang serupa dengan bolt, biasanya diperbuat daripada logam, dan ciri-ciri rabung heliks, dikenali sebagai  lelaki benang  (thread luaran). Skru digunakan untuk mengikat bahan-bahan dengan menggali di dan wedging ke dalam bahan apabila dihidupkan, manakala luka thread alur dalam bahan Diikat yang boleh membantu tarik bahan diikat bersama-sama dan mencegah ditarik keluar. Terdapat banyak skru untuk pelbagai bahan; mereka biasanya diikat dengan skru termasuk kayu, kepingan logam, dan plastik.

Skru biasanya akan mempunyai  kepala  pada satu hujung yang mengandungi bentuk dibentuk khas yang membolehkan ia dihidupkan, atau  didorong , dengan alat. Alat biasa untuk memandu skru termasuk pemutar skru dan perengkuh. Kepala biasanya lebih besar daripada badan skru, yang menyimpan skru daripada dipandu lebih dalam daripada panjang skru dan untuk menyediakan satu  permukaan galas

Kayu skru:

skru kayu awal telah dibuat dengan tangan, dengan satu siri fail, pahat, dan alat pemotong lain, dan ini boleh ditemui dengan mudah dengan mencatatkan jarak yang tidak teratur dan bentuk benang, serta markah fail selebihnya ke atas kepala skru dan di kawasan di antara benang. Banyak skru ini mempunyai hujung tumpul, sama sekali tiada titik tirus mendadak di hampir semua skru kayu moden. Akhirnya, pelarik telah digunakan untuk mengeluarkan skru kayu, dengan paten yang paling awal direkodkan pada 1760 di England. Dalam tahun 1850-an swaging alat telah dibangunkan untuk menyediakan benang yang lebih seragam dan konsisten. Skru yang dibuat dengan alat ini mempunyai lembah bulat dengan benang tajam dan kasar. Beberapa skru kayu telah dibuat dengan memotong mati seawal tahun 1700-an (mungkin juga sebelum 1678 apabila kandungan buku ini pertama kali diterbitkan pada bahagian).

Setelah skru beralih mesin telah digunakan bersama-sama, sebahagian besar didapati secara komersial skru kayu dihasilkan dengan kaedah ini. Ini skru kayu dipotong hampir selalunya tirus, dan walaupun shank tirus tidak jelas, mereka boleh dilihat kerana benang tidak menjulur diameter shank itu. skru tersebut terbaik dipasang selepas penggerudian lubang pandu dengan sedikit gerudi tirus. Majoriti skru kayu moden, kecuali yang diperbuat daripada tembaga, terbentuk pada thread rolling mesin. Skru tersebut mempunyai diameter yang berterusan, benang dengan diameter yang lebih besar daripada kaki, dan lebih kuat kerana proses rolling tidak memotong sebutir logam.


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