Top 1" of bolt is smooth, threaded after this point
Glass Knob Bolts are used to secure glass handles and knobs. Bolt head is dome shaped with a slight dimple in the center. It is smooth to the touch.
Standard size 2-1/2" bolts slip through hole from front of knob or handle and are secured with a square head nut on back side of drawer or door. Always hand tighten to avoid putting to much pressure on the glass knobs or handles.
If needed, bolts can be cut to shorter length with hacksaw or wire cutters. It is best to screw nut onto bolt before cutting. Nut can then be worked up and down at cut edge, to straighten threads.