Traditional and Custom Screws and Bolts. In addition, A. Lyons & Co., Inc. is a leader in a range of traditional screws and bolts including self-tapping, self-drilling, machine, SEMS, leg leveler, sheet metal, TEK, particle board, chip board, drywall, and a range of other screws and bolts. Head styles include pan head, oval head, countersunk ...
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