A nut with a built in oversize washer which is serrated to resist loosening. Meets IFI-145 (2002) / ASME B18.2.2 (2011).
A low carbon steel for general use. Zinc plated for moderate corrosion resistance.
There are no reviews yet.
Your email address will not be published. Required fields are marked *
Your review *
Oval heads are countersunk (cone shaped under the head) with a 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.