Low Profile Non-tapered Mounting Rings Black Plastic Available in two heights, 3/32" (2.5mm) and 3/16" (5mm) See listing images for detailed measurements Dimensions not listed in imagesĀ  - mounting holes - 3 3/16" (81.5mm) x 1 7/16" (37mm) Mounting screws not included - uses #3 x 3/8" for short ring and #3 x 5/8" for tall ring** Qty 1 mounting ring **You can use #3 x 5/8" screws for both sizes to save on using two different sizes of screws.

**You can use #3 x 5/8" screws for both sizes to save on using two different sizes of screws.