Wrap Around Piano Hinges Material:Stainless Steel These door bolts are used

These door bolts are used to fasten the upper and lower leaves of a Dutch door together

Features a very large weld surface for maximum weight bearing

Maximum door width of 35-7/16"

Fits the standard Truth spline (5/16" diameter and 12 splines)

It may change color over time

Wrap Around Piano Hinges Material:Stainless Steel These door bolts are usedSingle Wrap Hinge Information Made in America! The single wrap leaf is made to fit 3 4" plywood (or any lumber that measures 3 4"). Single wrap piano hinges offer a stronger attachment because the wrap leaf attaches to the face of the plywood or lumber rather than the edge grain. The knuckle length is 1 2" and the screw holes are 2" apart center to center. There are 70 screw holes per hinge. This hinge is available in 48" lengths. If you need a longer