Hexagon Socket Bolt with cylindrical head is also referred to as hex Socket Bolt,its head is hex socket.According to the strength is divided into ordinary and high strength.Ordinary hex Socket Bolt refers to the 4.8 Grade,high strength refers to the 8.8 Grade above including 10.9 and 12.9 Grade.
Flange Hex bolt with Serration with hot dip galvanized finish treatment .The flange Bolt is an integral bolt consisting of a hex head and a flange (the gasket under the hex and the hex fixed as one) and a screw (the cylinder with external thread). It shall be matched with a nut for fastening the parts connected with two through holes.
Material of Hex Bolts: Steel,stainless steel.
Size: M 3-M 56
Length: 12 mm-65 mm .
Surface treatment:Nature color,Black oxide,Phosphate,Zinc plated,micron 40-50.
Manufacturing process:Wire drawing,Cold heading,Insert tapping,Heat treatment,Surface plating,Inspection,Packing.
Standard : DIN 6921,DIN 933,DIN 931,DIN 934
Delivery time:Regular products is about 7-10 days,custom product will according to special requirement.
Usage : matched with Nuts to tighten the parts connecting two through holes, so the Flange Bolts connection is
a detachable connection.
Application:Wind tower,Nuclear power,Railway,Automotive industry,Construction,Electronic industry.
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