Customized Bolts

[aluminumrelay]

Hex Flange Bolts A flange screw with a serrated hex washer is an un-slotted hex head screw style with a unified thread pitch, and a flange that has serrations on the bearing surface side. These screws are designed for use in applications where vibrations can loosen fasteners. The serrations grip the bearing surface so that significantly more torque is needed to loosen the screw than it does to tighten it. The flange provides more strength than a standard machine screw and eliminates the need for a lockwasher or locknut in certain applications. Standard: DIN, IFI, ISO, JIS, AS, BS, EN, SAE, ASTM Material: Carbon steel , stainless steel Grade: 4.8, 5.8, 6.8,8.8,10.9,12.9 Head Type: Hex Flange Head Thread: full thread, partical thread, metric thread Finish: Plain, Zinc plated, Passivated, Nickle, plated, H.D.G.,Black Oxided, Dacromet, Geomet,etc Application: These screws are designed for use in applications where vibrations can loosen fasteners. Size: Diameter:M5-M36                           1/4"-1/2"         Length:16mm-200mm                      3/8"-4" Packing:1. Bulk Packing, 20-25kgs/ctn              2. General brown or white small box packing, 1-3kgs/box,  20-25kgs/ctn              3. Colored small box packing, 1-3kgs/box,  20-25kgs/ctn FOB  port: Shanghai Lead time:30-45days Payment: 1.T/T  30% Deposit and balance upon B/L copy before goods arrival                2. To Open Irrevocable L/C at sight Main export market: Africa, South America, Europe, Asia…Customized Bolts website:http://www.fastoscrews.com/bolts/