Threaded, field-replaceable 7mm zinc-plated steel rack rails. Heat treated 10/32 bolts with protective washers included. The item "Gator GR-2S ATA 2-Space Shallow Rack Case" is in sale since Saturday, July 30, 2016. This item is in the category "Musical Instruments & Gear\Pro Audio Equipment\Cases, Racks & Bags". The seller is "theproaudioguys" and is located in Littleton, Colorado.This item can be shipped worldwide.