Self drilling screws have a drill bit point. A hexagonal head for use with a wrench.
A stainless alloy that is harder than 18-8 stainless steel, but not as resistant to corrosion.
Heat treated for adequate strength. Zinc plated for moderate corrosion resistance.
There are no reviews yet.
Your email address will not be published. Required fields are marked *
Your review *
Flat heads are countersunk (cone shaped under the head) with a flat top. Frearson drive is x-shaped, similar to (but not compatible with) phillips.
Solid bronze. An alloy of copper with greater strength and corrosion resistance than brass. Exact color varies.