Maximum fastenable thickness =1.1mm

(Maximum fastenable thickness: Unthreaded Shank Length - Flat Washer Thickness - Spring Lock Washer Thickness)

Sunco has made the UNTHREADED SHANK LENGTH even smaller than currently available screws, so you can lock down plates thinner than ever before!

What Happens When You Shorten The Unthreaded Shank Length?

Once the unthreaded portion of the shank hits the plate, insertion halts!

In some cases, there might even be GAPS between the screw head, washers, and plate.

However when you make the unthreaded portion of the shank shorter, you can achieve a GAPLESS complete contact between the screw and the plate for a tight and stable connection.