Sliding Glass Door Tracks - Lower Track zinc They are available for 5/8"

They are available for 5/8" and 3/4" thick doors

including the mattress should be within 4% of the gas spring capacity

These slides are dependable and can bear heavy loads

1" tall with 5/8" diameter base

Sliding Glass Door Tracks - Lower Track zinc They are available for 5/8"Lower track for the sliding glass door consists of a slippery vinyl extrusion which provides anti rattle sliding action for glass doors 3 16" to 1 4" thick. The extrusion is 12 feet long, easily cut to size. The lower track inserts into a groove 3 4" wide x 1 2" deep. The lower track is used with the P102603B upper track. Dark brown, walnut color.