DIMENSIONAL ATTRIBUTES- Diameter (Nominal): #6- Thread Pitch: 32- Diameter (Dimension): 0.138"- Thread Length (Nominal): 0.103"- Across Flats (Basic): 5/16"- Across Flats (Minimum): 0.305"- Across Flats (Maximum): 0.313"- Height (Basic): 0.188"- Height (Minimum): 0.168"- Height (Maximum): 0.188"PRODUCT ATTRIBUTES- Category: Hex Nylon Insert Stop Lock Nuts- System of Measurement: Inch- Brand: Aspen Fasteners- Drive Style: External Hex Drive- Thread Length: Full Thread- Thread Direction: Right-Hand Thread- Material: Brass- Coating: Uncoated- Origin: Origin Undefined- Standards and Specifications: NM and NE Standard SeriesNB: Product images are copyrighted artistic representations which may not reflect the product's exact appearance, proportions and/or relative dimensions.