Pemko 601H Retaining Stop Mounted within the tracks for Sliding Glass Series sliding hardware systems Heavy Duty Clip Stop. Nylon Body. Downloads Pemko 601H Installation Instructions (.pdf) Close Request Information Our consultative experts are ready to help. Contact us here: loading Interested in this product? Contact us to order Related products Pemko BLD-SPACER-585/8" Dry Wall Spacer for Sliding Track & Flat Track Systems Pemko SDL Privacy Barn Door Lock Pemko 2802_Dual Aluminum Track for HBP200A and SIM150.