Grommets #4 Heavy Duty Rolled Rim Spur, Black Oxide Coated Brass, Select Quantity Needed (20 Piece Set)

#4 Rolled Rim Spur Grommets with Black Oxide Coating. These #4 rolled rim grommet and spur washer pair is made to support holes in a variety of fabrics. Made from heavy-gauge brass with black oxide coating, these compact but durable parts can stand up to any type of climate. The rolled rim grommet provides a slightly thicker material. The spur washer offers more grab to the fabric. When the two come together, this grommet and washer pair offers the most robust and stable option. Since they don't move around after installed, this makes them optimal for rugged applications that encounter movement, like for use on boats. Easily cut a hole into the fabric then install the metal grommet and washer with the appropriate setting tools. While ideal for curtains, drapery, and vinyl banners, they also operate well in custom awning, outdoor upholstery, and marine jobs. Specific uses consist of awnings, seats, boat covers, flags and banners, luggage, privacy drapes, safety gear, signs and media, outdoor tents, and tarpaulins. The hole's inner diameter measures 9/16". The grommets outside circumference is 1 1/8". Grommet neck is 1/4"