A serrated truss head Tek screw is a type of self- ...
CSK (countersunk) head Tek screws are a type of se ...
A reduced drill point screw, also known as a self- ...
An under head serrated screw, also known as a wash ...
A Tek screw, also known as a self-drilling screw ...
A wafer head Tek screw is a type of self-drillin ...
A hex washer head Tek screw is a type of self-dril ...
