Itšetlehe ka ts'ebetso e ka tšeptjoang ea Cross Recessed Countersunk Head Wood Screws, e etselitsoeng ho finyella litekanyetso tsa DIN 7997 - 1984. Ebang ke bakeng sa kopano ea thepa ea ka tlung kapa merero ea ho betla mapolanka, li-screws tsena li fana ka likhokahano tse sireletsehileng le tse tsitsitseng bakeng sa litlhoko tsa hau tsa mapolanka.
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Tharollo e Ikemetseng ea ho Fastening:Cross Recessed Countersunk Head Wood Screws, e tsamaellanang le DIN 7997 - 1984, e fana ka tharollo e tšepahalang ea ho tiisa e loketseng mesebetsi ea mapolanka le ea mapolanka.
Countersunk Head Design:Moqapi oa hlooho ea countersunk o etsa bonnete ba ho qeta ha ho kenngoa, ho fokotsa kotsi ea ho senya le ho fana ka ponahalo e makhethe le ea setsebi mererong e bonahalang ea mapolanka.
DIN 7997 - 1984 Tumellano:Li-screws tsena tsa lehong li lumellana le litlhaloso tse hlalositsoeng ho DIN 7997 - 1984, ho netefatsa boleng bo tsitsitseng le litekanyetso tsa ts'ebetso bakeng sa ho tiisa ka mokhoa o tšepahalang mererong ea mapolanka.