black gray phosphate bugle head self tapping drywall screw bakeng sa lehong la tšepe

Self Drilling Screws ke li-fasteners tse nang le bokhoni ba ho cheka ka hare, tse entsoeng ka ntlha e bōpehileng joaloka boro e ka kenang ka ho toba lisebelisoa tse kang tšepe, lehong le polasetiki ntle le tlhoko ea ho cheka pele. Ho lokisa ka potlako ho finyelloa ka ho hokahana ha likhoele le li-substrates, tse sebelisoang haholo mafapheng a kang a kaho, thepa ea ka tlung, le tlhahiso ea mechine. E na le litšobotsi tsa ts'ebetso e phahameng, ho boloka nako, le matla a holimo.

Litekanyetso tsa Tekheniki le Tataiso ea Khetho

Lintho tse bonahalang: tšepe ea carbon (ka holim'a galvanized/phosphated), tšepe e sa jeleng paate (304/316, e sa bolaeeng ke kutu)

Litlhaloso tse tloaelehileng bakeng sa bophara (mm): Φ 2.5, Φ 3.5, Φ 4.2, Φ 5.0 (ho itšetlehile ka botenya ba substrate, maqephe a tšepe a sebelisoa haholo ka bophara ba Φ 3.5-4.2)

Bolelele (mm) 10-150mm (ho netefatsa hore bonyane ba ho loma botebo ba 3-5mm ka mor'a ho phunyeletsa substrate)

Mofuta oa khoele: khoele e le 'ngoe (matla a holimo), khoele e habeli (ho kena kapele)

Mofuta oa hlooho: countersunk (ho kenya sephara), hlooho ea disc (khatello e phahameng), hlooho ea hexagonal (boikutlo bo matla ba sesebelisoa)

Phekolo ea bokaholimo: ho penta ka zinki tse tšoeu (thibelo ea mantlha ea mafome), phosphating e ntšo (e hanang ho apara), Dacromet (ho hanyetsa kutu e phahameng)