Schwinn 222 Parts List, Full Size Hardware Chart, Product Illustration, Assembly Instructions page 14

Assembly Hardware Required: (4) Allen Bolts 16 mm long (item #5)
Step 13: Before sliding the HANDLEBAR POST (#4) onto the MAIN UNIT (#13),
attach both HR CABLES (#7 & #10) as well as the COMPUTER CABLE (#8 & #9).
Slide the HANDLEBAR POST (#4) onto the MAIN UNIT (#13). Fasten with 4 BOLTS
(#22) and 4 CURVED WASHERS (#19). Tighten with provided Allen wrench.
Assembly Stage #6
Attach Console Mast to Main Unit
(4) Curved Washers (item #6)
(4) Computer Screws (item #3)