| Image | Supplier | Item Code | Short Description |
|---|---|---|---|
| | IDC-USA | IDC 20B-1CL | IDC Select IDC 20B-1CL Cottered Connecting Link, 20B Chain, 1-1/4 in Pitch |
| | IDC-USA | IDC 20B-1OL | IDC Select IDC 20B-1OL Cottered Offset Link, 20B-1 Chain, 1-1/4 in Pitch, |
| | IDC-USA | IDC 20B-2CL | 20B-2CL, CONNECTING LINK (CP) (50) |
| | IDC-USA | IDC 20B-2OL | 20B-2OL, OFFSET LINK BRITISH STANDARD |
| | IDC-USA | IDC 20B-3CL | IDC Select IDC 20B-3CL Cottered Connecting Link, 20B Chain, 1-1/4 in Pitch |
| | IDC-USA | IDC 20B-3OL | IDC Select IDC 20B-3OL Cottered Offset Link, 20B-3 Chain, 1-1/4 in Pitch, |
| Link Plate Thickness | 0.177 in Inner/0.138 in Outer |
| Manufacturer | IDC-USA |
