<![CDATA[EC21 Product Catalogs - hdg hex nut]]> <![CDATA[A563 Hex Nuts Astm A563 Heavy Hex Nuts Outer Hexagon Nut for Engineering Machinery]]> <![CDATA[ASTM A194 & ASTM A194M Grade 2H,2HM,7,7M,4,8,8M Heavy Hex Nuts]]> <![CDATA[Hex Nuts]]> <![CDATA[ASTM A194 Heavy Hex Nut]]> <![CDATA[ASME B18.2.2 Hex Nut]]>