* Add item to shopping cart for a shipping quote - allow 5-7 business days for delivery Item Number - MCL18 Threaded Magnetized Clamp w/ 1/4" and 3/8" Fitting Patented - Clamp for 1/4" and 3/8" threaded stem. Will fasten securely to square and rectangular tubing.Quick Description: 4" Length 1/4" and 3/8" fitting Chrome finish