Machine Design
Fabric belts are used in industrial applications because

They can work at high temperature
They are cheap
They are unaffected by moisture and humidity
None of these

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Machine Design
Machine screws are

Similar to small size tap bolts except that a greater variety of shapes of heads are available
Similar to stud
Slotted for a screw driver and generally used with a nut
Used to prevent relative motion between two parts

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