Description Aluminum knurled washer face (flared collar) thumb screws are nonmagnetic, lightweight and corrosion resistant. The knurled head allows for a more controlled adjustment. Other Details UPC: Shipping: Calculated at Checkout Measurement Type: Inch Diameter-Thread Size: #10-32 Length: 3/8″ Dimension A: 7/16″ Dimension B: 3/16″ Dimension C: 11/16″ Head Style: Knurled Washer Face Material: Aluminum Finish: Plain Tolerances: A .020, B /- .015, C /-.015, L /- .075 Manufacturer Part #: FC7109-A Package Quantity: 50 Package Size: Package Diameter: #10 Thread: Fine Product Type: Thumb Screws Diameter of Head: 7/16″ Head Height: 3/16″ Overall Length: 11/16″