#233 HO Scale 30-Series Gearboxes & Lids
Plastic 30-Series Draft Gearboxes, Draft Gearbox Lids and Spring Lids, Draft Gear Box, Draft Gear Box Lid and Spring Lid for 30-Series Couplers.
Package includes: 10 pair per package.
Note: Uses #621 Torsion Centering Spring
2-56 screws are the most commonly used for center hole.
Screw length will very depending on the mounting situation.