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PRODUCT SPECIFICATIONSPart #: 0000-114203Fastener Type: Square Head Set Screw Cup PointSize Description: 3/8"-16 x 1" (FT)Diameter/Nominal Size: 3/8"Length: 1"Wrench Size/Across Flats: 0.362-0.375"Head Height: 0.270-0.293"Point Diameter: 0.194-0.212"Thread Pitch: 16Thread Pitch Type: CoarseThread Direction: RightThread Coverage: FullSystem of Measurement: InchGrade: 2Material: Low Carbon Steel Case HardenedFinish: Plain Finish (No Plating)Head Type: SquareDrive Type: External SquarePoint Type: CupAverage Piece Weight: 0.0327800 lbs.Square Head Set Screws: Tip pressure prevents objects from moving relative to one another in assemblies where one object is housed inside another. The square head enables wrench tightening and also an easier wrench grip for nut tightening. Used in new construction to mimic an older aesthetic or in railway applications. Set screws come in a variety of different points, cup point being the most common.