Profile: Coburn-Myers Bolt & Nut, Inc. is a provider of industrial fasteners. Our products include anchors, bolts, cap screws, metric fasteners, nuts, pins, screws, socket products, stainless fasteners, studs, threaded rod and washers. Our anchors include concrete screws, drop-in, lag screw shields, machine screw, nylon nail, plastic, sleeve, split bolt anchors, toggle bolts & wings, and toggle wings. Concrete screws are designed with alternating raised and lower threads with diamond cut notches. They cut their own threads into concrete, brick or block. Our drop-in anchors are made with an expansion shield and an expander plug. The anchor is dropped into a pre-drilled hole in concrete or stone, and then expanded using a setting tool. Lag screw shields are medium-duty, zinc alloy anchors and are designed for use with lag bolts. Machine screw anchors are two-piece female anchors with internal machine screw threads.