Hoppe: 16mm manual roller with shootbolt gear with extension included Hollon HS-610E Home & Office Fire Safe ApplicationAdditional protection for Mul‑T‑Lock C‑Series

ApplicationAdditional protection for Mul‑T‑Lock C‑Series padlock shackles

Material: Hardened Steel Shell

Outside knob / lever is always fixed

in both single cylinder and double cylinder designs and in all standard Hercular finishes

Hoppe: 16mm manual roller with shootbolt gear with extension included Hollon HS-610E Home & Office Fire Safe ApplicationAdditional protection for Mul‑T‑Lock C‑Series36'' handle height manual roller shoot bolt version gear is based on your faceplate width, your backset, your deadbolt throw, your top roller position and top extension length all of which are listed in the item title above. also see picture above) If all your measurements are the same as above this it the gear you need. If not you need to keep searching to find gear with measurements that match yours. Many gears extensions fit multiple applications