DIMENSIONAL ATTRIBUTES | Diameter (Nominal): #4 | PRODUCT ATTRIBUTES | Category: Shoulder Washers | System of Measurement: Inch | Brand: Aspen Fasteners | Material: Nylon | Material Grade: Type 6/6 | Coating: Uncoated | Origin: Made in U.S.A. | NB: Product images are copyrighted artistic representations which may not reflect the product's exact appearance, proportions and/or relative dimensions.