All post clamps are completely interchangable with all Rail Clamps. Rail Clamps are designed to cover post clamp ears. 
 
Sold Loose or in Cartons. 
Type:
VFT25 Carton of 50
VFT32, VFT40, VFT50 Carton of 40
VFT65 Carton of 30
VFT80, VFT100 Carton of 20
 
VFB25 Carton or 40
VFB32, VFB40 Carton of 30
VFB50 Carton 20
 
VPC Carton 100