Igwe mkpuchi ihe mkpuchi nke nwere ihe mkpuchi onwe onye nke carbon ígwè na-acha anụnụ anụnụ nke nwere ihe mkpuchi zinc nke Phillips W5 siri ike

Skrọ nke na-akpọ Carbon Steel: nke siri ike maka ike, ya na ihe mkpuchi zinc na-acha anụnụ anụnụ maka iguzogide nchara. Nwere isi pan, Phillips cross recess, na ihe eji asa ákwà W5 agbakwunyere maka nkwụsi ike ka mma. Nhazi nke na-akpọ ya na-ewepụ ihe a na-egwupụta tupu a gwuo ya, na-eme ka ọ dị mma maka arịa ụlọ, ngwa eletrọnịkị, na igwe dị mfe—na-enye ihe mkpuchi dị nchebe ma dị irè n'ọtụtụ mgbakọ.