PRODUCT SPECIFICATIONSPart #: 0000-203208Fastener Type: Machine Screw Phillips Flat Head 100 DegreeSize Description: #2-56 x 5/16Diameter/Nominal Size: #2Length: 5/16Wrench Size/Across Flats: PH#1Head Diameter: 0.142-0.162"Head Height: 0.029-0.037"Thread Pitch: 56Thread Pitch Type: CoarseThread Direction: RightThread Coverage: FullSystem of Measurement: InchMaterial: Stainless Steel 18-8Finish: Black OxideHead Type: Flat 100 DegreeDrive Type: PhillipsAverage Piece Weight: 0.0004100 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.