Abstract: A sprocket chain for use in a normally corrosive environment is made up of identical, clevis-type links of synthetic resin composition pivotally connected by quick detachable, twist-locking pivot pins also of synthetic resin composition. The links are each formed at one end thereof with relatively spaced apart, transversely aligned eyes which may be resiliently flexed inwardly toward one another to permit a locking lug on the pivot pin to move into snap-locking engagement with a notch or dwell formed in a cam-like locking surface on one of the eyes of the link. The pivot pins are quickly removable from the links by simply rotating the pin about 90 degrees in either direction and thereafter withdrawing the pin axially from the eyes of the link.