Triangle Fastener Corp. has a line of type No. 304 stainless steel bi-metal self-drilling screws that provide corrosion resistance and ductility, officials said. The drill point is made of hardened carbon steel and connected to a stainless steel body. The No. 12 and quarter-inch diameter screws drill and tap steel up to half inch thick and range up to 12 inches long. The screws are offered in hex washer head, pancake head and button head styles and can be painted to match any project. The screws are also available with synthetic rubber Bond-Seal sealing washers.
Triangle Fastener Corp.
(800) 486-1832
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