8mmx64mm Hex Socket Cap Head Screw Bolt Sleeve Barrel Connector Nut 10pcs Nylon-Insert Locknuts A float switch is a

A float switch is a device used to sense the level of liquid within a tank

Widely used in Power supply

Rubber-made shrink wrap is too thick for batteries and there is no much space for the battery wrapped by rubber shrink tube

4mm diameter threaded two tip 70mm length tight adjustable steel push rod is used for rc airplane

plastic and rubber handle

8mmx64mm Hex Socket Cap Head Screw Bolt Sleeve Barrel Connector Nut 10pcs Nylon-Insert Locknuts A float switch is aHex head screws barrel nuts countersunk bolts, furniture accessories. Once installed, they are permanently attached to the mating material, allowing the associated nut to be removed in service without the risk of the fastener becoming dislodged.