Steelgrip 20 Belt Fastener - Carbon Steel, 48" Matched Set, 4 Sets per Box Truflex 00 Super HC Sheaves -

00 Super HC Sheaves - QD 78745500 is a V-belt sheave (pulley)

1125K12 is a standardized industry size

com/products/gates-6-3v375-super-hc-powerband-v-belt"

so the SPB3412 interchanges with Gates SPB3412

Steelgrip 20 Belt Fastener - Carbon Steel, 48" Matched Set, 4 Sets per Box Truflex 00 Super HC Sheaves -Steelgrip 20 Belt Fastener Matched Set is a hook style alligator lacing splice kit pre sized for a 48 inch belt width. For belts 5 32 to 3 16 inch on pulleys 3 inch or larger. Carbon Steel construction. Pack contains 4 matched sets (top plate, bottom plate, and corrugated hinge pin) with installation instructions. What is in the package: Multiple sets of alligator style lacing in cross scored strips Corrugated hinge pin Gauge pin Installation