Stainless side wall anchor for 1.66" diameter (42.4mm) tubing. Available in both 304 grade or 316 grade stainless. Anchor holds tubing approximately 2-1/4" away from mounting surface. Anchor plate is 3-15/16" diameter. Machine screws for attaching tubing to anchor are 8.00mm x 1.25 thread. Mounting bolts/screws for attaching anchor plate to wall are not included.