dub grey phosphate bugle taub hau nws tus kheej tapping drywall ntsia hlau rau hlau ntoo

Self Drilling Screws yog fasteners nrog built-in drilling peev xwm, tsim nrog ib tug laum me ntsis zoo li lub taub hau uas muaj peev xwm ncaj qha nkag mus rau cov ntaub ntawv xws li hlau, ntoo, thiab yas yam tsis tas yuav tsum tau ua ntej drilling. Kev kho sai sai yog ua tiav los ntawm kev sib tshuam ntawm cov xov thiab cov substrates, uas yog siv dav hauv cov teb xws li kev tsim kho, rooj tog zaum, thiab kev tsim khoom siv tshuab. Nws muaj cov yam ntxwv ntawm kev ua haujlwm siab, txuag lub sijhawm, thiab lub zog siab.

Technical Parameters and Selection Guide

Khoom siv: Carbon steel (nto galvanized / phosphated), stainless hlau (304/316, corrosion-resistant)

Cov lus qhia dav dav rau txoj kab uas hla (mm): Φ 2.5, Φ 3.5, Φ 4.2, Φ 5.0 (nyob ntawm qhov tuab ntawm lub substrate, cov ntawv hlau feem ntau yog siv nrog txoj kab uas hla ntawm Φ 3.5-4.2)

Length (mm) 10-150mm (kom paub tseeb qhov tsawg kawg tom qhov tob ntawm 3-5mm tom qab nkag mus rau hauv substrate)

Xov hom: ib leeg xov (siab tensile zog), ob xov (ceev nkag)

Lub taub hau hom: countersunk (flat installation), disc taub hau (siab siab), hexagonal taub hau (muaj zog cuab tam adaptability)

Kev kho deg: dawb zinc plating (kev tiv thaiv xeb), phosphating dub (hnav-resistant), Dacromet (siab corrosion kuj)