atụmatụ:
| Ihe onwunwe | Igwe anaghị agba nchara, Carbon Steel, Aluminom na Brass |
| EMEcha | Black oxide,Phosphate,Zinc plated,Ese azụ,Galvanized na-ekpo ọkụ |
| ỤDỊ isi | Isi Flat, countersunk Head, Belata isi |
| Eriri | UNC,UNF,Metric eri |
| ỤLỌ NKE | 0.8mm, 1.0mm, 1.25mm, 1.5mm, 1.75mm ma ọ bụ dị ka gị arịrịọ (nri / aka ekpe eri) |
Anyị nwere ụdị mkpụrụ kpuru na ntinye dị iche iche dị na anyị:
Ewelatala isi Countersunk na Groove – Steel
Isi hex belatara Countersunk zuru ezu - igwe
Isi Flat With Groove – Steel
Isi Hex Flat zuru ezu - ígwè
Isi Hex Flat Isi - Steel
Isi hex belatara Countersunk - igwe anaghị agba nchara
