Ofna plastic countersunk washers and nuts are constructed of black plastic.

INCLUDES: 8 washers
8 nuts

SPECS: Washer- Outside diameter- 13.4mm (.53")
Inside diameter- 6.4mm (.25")
Thickness- 4.2mm (.17")
Nuts- Length- 15mm (.59")
Thickness- 2.8mm (.11")

COMMENTS: These washers are flat on one side and concave on the other to accept the bevel shape of the flathead screws.