PRODUCT SPECIFICATIONSPart #: 0000-111252Fastener Type: Machine Screw Slotted Pan HeadSize Description: 1/4"-20 x 1 1/8" (FT)Diameter/Nominal Size: 1/4"Length: 1 1/8"Head Diameter: 0.473-0492"Head Height: 0.130-0.144"Thread Pitch: 20Thread Pitch Type: CoarseThread Direction: RightThread Coverage: FullSystem of Measurement: InchMaterial: Low Carbon SteelFinish: Zinc PlatedHead Type: PanDrive Type: SlottedAverage Piece Weight: 0.0173900 lbs.Machine screws have a uniform diameter the entire length of the shaft as opposed to tapered screws which have a pointed tip; are primarily used to fasten machine components, appliances and many more.