This part of the multipoint lock is the Receiver gear box with receptacles for the deadbolt and spring latch
8mm Square Spindle
Kwikset Windham passage lock in polished brass
Model: 20787C626118
Deadbolt DL3500CRL/10B Classroom
Schlage Jupiter Heavy Duty Commercial Passage Door Lever Set Finish:Satin Nickel This part of the multipointPassage Latch Door Lever from the Jupiter Collection. Part Numbers : S10JUP609 ,S10JUP613 ,S10JUP605 , S10JUP625, S10JUP606, S10JUP626, S10JUP619. Backset : 2 3 4", 2 3 8", Adjustable 2 3 8" or 2 3 4" Door Thickness : 1 3 4", 1 5 8", 1 7 8", 2" Handle Length : 4. 25 in. Both levers always unlocked. Latch: 1" x 2 1 4", Square corner faceplate, 7 8" housing diameter, 1 2" throw Strike: 1 1 8" x 2 3 4", Square corner, T strike, box Door Range: 1 3 8" 2"