1. Isi buru ibu na-enye ebe dị elu na-ebu ibu maka ijikọta lath metal
2. Isi profaịlụ dị ala na-ezute ihe nrụnye maka ijikọta lath metal na osisi ma ọ bụ ígwè
3. Dị na Ụdị 17 ma ọ bụ #3 ebe ịkwọ ụgbọ ala
4. Pịnye 17 isi maka mmalite ngwa ngwa na obere nkewa
5.# 3 ebe a na-egwupụta ihe na-abanye nchara nchara ruo .142″ oke
6. Phillips na-akwọ ụgbọala miri emi ma dị ọcha, na-ebelata nkwụsịtụ
7. Akwụkwọ ikike 410 nwere ihe mkpuchi mkpuchi maka oke nguzogide corrosion
Phillips Modified Truss Head Sheet Metal screws (nke a makwaara dị ka Lath Screws) na-egosipụta draịva Phillips na ụdị 17 a ma ama n'ọnụ iji nyere aka wepụ mgbawa n'oge ịcha eri.
Ihe mkpuchi isi Truss gbanwetụrụ nwere isi domed buru ibu nwere flange, dị ka ihe nchacha.gbanwetụrụ Truss Head screws nwere 100-degree undercut nke na-emepụta ebe buru ibu n'okpuru isi nke ịghasa maka nnukwu elu.
A na-ejikarị skru nke isi mpempe akwụkwọ emezigharị Truss na ngwa ejigide osisi.
gbanwetụrụ Truss Head Sheet Metal Screws nwere ebe dị nkọ na eriri ịkpụ nke na-enye njide dị mma na osisi, ngwakọta, plastik na ọla dị nro.A na-eme ha nke ọkwa 304 igwe anaghị agba nchara, nke na-eguzogide corrosion na nchara.