Truss heads are wide with a low profile rounded top. Spanner (a.k.a. snake eyes) is a tamper resistant drive that requires a special driver to install.
The most common stainless steel for general hardware use.
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Your email address will not be published.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. Square drive is designed to reduce the risk of cam-out (stripping) and allow single-handed installation.
Heat treated for adequate strength. Zinc plated for moderate corrosion resistance.