1.About the hex head screws thread, it is the common thread, generally are fine tooth circle tooth is self locking on the common thread outside hexagonal screw, is mainly used to shield part or impact, vibration or alternating load, its advantages are preloaded contact area is large, can use a lot of pre-tightening force, general use on the large equipment, the price must be lower the socket head.
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2. Hexagon cocket screws are often used in machinery, mainly for fastening, disassembly, not easy to slip Angle and other advantages, its advantages and screw head (wrench force position) than hexagon thin, some places are not hexagon can be replaced. In addition, low cost, small power strength, low precision requirements of the machine using hexagon socket screws than the outer hexagon much less. The advantage of hexagon is small space, can do countersunk head, cylinder head, etc., generally used in small equipment.
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Hex heah screws and hex socket screws are all known as hex screws, in addition, we can also be customized according to your requirements, looking forward to win-win cooperation with you!