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EASY TO SEPARATE UNIT: a small gap on rails sperates each unit or concrete wall. RAILS WITH THREAD : The rails are with the threaded holes. No need to thread. Mounting onto Rack Rails. The Triangle Self-tapping Screws Can Automatically Tap the Internal Thread in One Step While by Electric Screw Driver.
When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.