Across Flats (Width): Max 0.438″ – Min 0.423″ Color: Yellow Color May Vary: Color and sheen may vary Condition: New Diameter: 1/4″ Drive Style: External Hex Thread Direction: Right Hand Fit: 2B Internal Thread: 1/4/2028 Material: Brass Part Number: 046737863891 Product Type: Cap Nuts Size System: US Size Type: Regular System of Measurement: Inch Thread Direction: Right Hand Thread Pitch: 28 Per Inch Thread Size: 1/4″-28 Thread Standard: UNF Thread Type: Fine Tolerance (IFI): Actual measurements may vary slightly /- depending on production run within IFI Tolerances Weight: 1 lb Hex nut with a closed end Domed thread to protect external thread Low Crown Most Popular style Easily Removable Aesthetic finished look Also known as an Acorn Nut, Cap Nut, or Dome Nut