A machine screw is a type of screw that has a uniform thread along its entire length and can be used to join metal parts or components. A slotted head is a type of head that has a single slot across its top that can be driven by a flat-blade screwdriver. A M2x30 slotted machine screw has a metric thread size of M2, which means it has a diameter of 2 mm and a pitch of 0.4 mm. The length of the screw is measured from the underside of the head to the tip of the thread, and in this case, it is 30 mm. A pack of 50 M2x30 slotted machine screws can be used for various applications that require precise and secure fastening of metal parts, such as electronics, machinery, or hardware
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