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Metric Roller Chain Attachments
Our superior metric roller chain attachments are precision manufactured from high-grade carbon steel to DIN ISO 606 (formerly DIN 8187-2) dimensional specifications for optimal performance, interchangeability, and lifespan. We supply metric chain attachments as individual connecting links, pre-assembled spacings like every 2nd pitch or every 4th, and custom-spaced lengths per request. We also provide custom attachments for metric roller chains and stainless steel attachments. For more information or a quote, contact our customer service team today!
Metric Chain Attachment Types
Our lineup of metric roller chain attachments includes all commonly used types for every chain size.
A1 - Bent Tab With One Hole on One Side
K1 - Bent Tab With One Hole on Both Sides
SA1 - Straight With One Hole on One Side
SK1 - Straight With One Hole on Both Sides
D1 - Extended Pin on One Pin Per Link
D3 - Extended Pin on Both Pins Per Link
A2 - Bent Tab With Two Holes on One Side
K2 - Bent Tab With Two Holes on Both Sides
SA2 - Straight With Two Holes on One Side
SK2 - Straight With Two Hole on Both Sides
For more information, download our catalog or give us a call.
Metric Chain Attachment Dimensions
The below charts show all of the dimensions for our standard metric roller chain attachment links. For additional information or custom attachments please contact us!
Metric A1 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (G) | Dimension (M) | Hole Dia. (DL) | Dimension (I) | Dimension (F) | Dimension (H) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 06BA1 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 9.52mm | 3.5mm | 9.52mm | 13.5mm | 6.5mm | 1.30mm |
| 08BA1 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 9.5mm | 4.5mm | 12.70mm | 18.2mm | 8.90mm | 1.60mm |
| 10BA1 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 14.3mm | 5.5mm | 15.90mm | 22.30mm | 10.31mm | 1.70mm |
| 12BA1 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 16.0mm | 6.6mm | 19.05mm | 26.20mm | 13.46mm | 1.85mm |
| 16BA1 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 19.01mm | 6.6mm | 25.40mm | 36.30mm | 15.88mm | 3.10mm |
| 20BA1 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 35.0mm | 9.00mm | 31.75mm | 50.25mm | 19.80mm | 3.50mm |
| 24BA1 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 30.0mm | 10.50mm | 38.10mm | 54.20mm | 26.67mm | 4.80mm |
Metric K1 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (G) | Dimension (M) | Hole Dia. (DL) | Dimension (I) | Dimension (F) | Dimension (H) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 06BK1 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 9.52mm | 3.5mm | 9.52mm | 13.5mm | 6.5mm | 1.30mm |
| 08BK1 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 9.5mm | 4.5mm | 12.70mm | 18.2mm | 8.90mm | 1.60mm |
| 10BK1 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 14.3mm | 5.5mm | 15.90mm | 22.30mm | 10.31mm | 1.70mm |
| 12BK1 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 16.0mm | 6.6mm | 19.05mm | 26.20mm | 13.46mm | 1.85mm |
| 16BK1 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 19.01mm | 6.6mm | 25.40mm | 36.30mm | 15.88mm | 3.10mm |
| 20BK1 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 35.0mm | 9.00mm | 31.75mm | 50.25mm | 19.80mm | 3.50mm |
| 24BK1 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 30.0mm | 10.50mm | 38.10mm | 54.20mm | 26.67mm | 4.80mm |
Metric SA1 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (G) | Dimension (M) | Hole Dia. (DL) | Dimension (F) | Dimension (H) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|
| 06BSA1 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 9.52mm | 3.5mm | 9.52mm | 13.5mm | 1.30mm |
| 08BSA1 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 9.5mm | 4.5mm | 13.35mm | 18.9mm | 1.60mm |
| 10BSA1 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 14.3mm | 5.5mm | 16.5mm | 22.95mm | 1.70mm |
| 12BSA1 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 16.0mm | 6.6mm | 21.45mm | 28.6mm | 1.85mm |
| 16BSA1 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 19.01mm | 6.6mm | 23.15mm | 34.0mm | 3.10mm |
| 20BSA1 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 35.0mm | 9.00mm | 30.5mm | 45.7mm | 3.50mm |
| 24BSA1 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 30.0mm | 10.50mm | 36.0mm | 61.5mm | 4.80mm |
Metric SK1 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (G) | Dimension (M) | Hole Dia. (DL) | Dimension (F) | Dimension (H) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|
| 06BSK1 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 9.52mm | 3.5mm | 9.52mm | 13.5mm | 1.30mm |
| 08BSK1 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 9.5mm | 4.5mm | 13.35mm | 18.9mm | 1.60mm |
| 10BSK1 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 14.3mm | 5.5mm | 16.5mm | 22.95mm | 1.70mm |
| 12BSK1 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 16.0mm | 6.6mm | 21.45mm | 28.6mm | 1.85mm |
| 16BSK1 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 19.01mm | 6.6mm | 23.15mm | 34.0mm | 3.10mm |
| 20BSK1 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 35.0mm | 9.00mm | 30.5mm | 45.7mm | 3.50mm |
| 24BSK1 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 30.0mm | 10.50mm | 36.0mm | 61.5mm | 4.80mm |
Metric D1 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (G) | Dimension (FZ) | Pin Extension (LZ) | Pin Dia. (DZ) |
|---|---|---|---|---|---|---|---|---|
| 06BD1 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 20.7mm | 15mm | 5.0mm |
| 08BD1 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 22.4mm | 15mm | 6.0mm |
| 10BD1 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 28.5mm | 20mm | 6.5mm |
| 12BD1 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 29.8mm | 20mm | 7.0mm |
| 16BD1 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 45.9mm | 30mm | 10.0mm |
| 20BD1 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 48.4mm | 30mm | 12.0mm |
| 24BD1 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 59.1mm | 35mm | 16.0mm |
Metric D3 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (G) | Dimension (FZ) | Pin Extension (LZ) | Pin Dia. (DZ) |
|---|---|---|---|---|---|---|---|---|
| 06BD3 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 20.7mm | 15mm | 5.0mm |
| 08BD3 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 22.4mm | 15mm | 6.0mm |
| 10BD3 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 28.5mm | 20mm | 6.5mm |
| 12BD3 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 29.8mm | 20mm | 7.0mm |
| 16BD3 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 45.9mm | 30mm | 10.0mm |
| 20BD3 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 48.4mm | 30mm | 12.0mm |
| 24BD3 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 59.1mm | 35mm | 16.0mm |
Metric A2 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (K) | Dimension (M) | Dimension (DL) | Dimension (G) | Dimension (I) | Dimension (F) | Dimension (H) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 06BA2 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 17.72mm | 3.5mm | 9.525mm | 9.5mm | 13.5mm | 6.5mm | 1.3mm |
| 08BA2 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 24.0mm | 4.5mm | 12.7mm | 12.7mm | 18.2mm | 8.9mm | 1.6mm |
| 10BA2 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 29.6mm | 5.5mm | 15.9mm | 15.9mm | 22.3mm | 10.3mm | 1.7mm |
| 12BA2 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 34.0mm | 6.6mm | 19.1mm | 19.0mm | 26.2mm | 13.5mm | 1.85mm |
| 16BA2 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 46.4mm | 6.6mm | 25.4mm | 25.4mm | 36.3mm | 15.9mm | 3.1mm |
| 20BA2 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 58.1mm | 9.0mm | 31.75mm | 31.5mm | 50.3mm | 19.8mm | 3.5mm |
| 24BA2 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 71.3mm | 10.5mm | 38.1mm | 38.1mm | 54.2mm | 26.1mm | 4.8mm |
Metric K2 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (K) | Dimension (M) | Dimension (DL) | Dimension (G) | Dimension (I) | Dimension (F) | Dimension (H) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 06BK2 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 17.72mm | 3.5mm | 9.525mm | 9.5mm | 13.5mm | 6.5mm | 1.3mm |
| 08BK2 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 24.0mm | 4.5mm | 12.7mm | 12.7mm | 18.2mm | 8.9mm | 1.6mm |
| 10BK2 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 29.6mm | 5.5mm | 15.9mm | 15.9mm | 22.3mm | 10.3mm | 1.7mm |
| 12BK2 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 34.0mm | 6.6mm | 19.1mm | 19.0mm | 26.2mm | 13.5mm | 1.85mm |
| 16BK2 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 46.4mm | 6.6mm | 25.4mm | 25.4mm | 36.3mm | 15.9mm | 3.1mm |
| 20BK2 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 58.1mm | 9.0mm | 31.75mm | 31.5mm | 50.3mm | 19.8mm | 3.5mm |
| 24BK2 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 71.3mm | 10.5mm | 38.1mm | 38.1mm | 54.2mm | 26.1mm | 4.8mm |
Metric SA2 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (K) | Dimension (M) | Dimension (DL) | Dimension (G) | Dimension (I) | Dimension (F) | Dimension (H) | Dimension (IF) | Dimension (HF) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 06BSA2 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 17.72mm | 3.5mm | 9.525mm | 9.5mm | 13.5mm | 6.5mm | 9.5mm | 13.5mm | 1.3mm |
| 08BSA2 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 24.0mm | 4.5mm | 12.7mm | 12.7mm | 18.2mm | 8.9mm | 13.4mm | 18.9mm | 1.6mm |
| 10BSA2 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 29.6mm | 5.5mm | 15.9mm | 15.9mm | 22.3mm | 10.3mm | 16.5mm | 22.9mm | 1.7mm |
| 12BSA2 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 34.0mm | 6.6mm | 19.1mm | 19.0mm | 26.2mm | 13.5mm | 21.5mm | 28.6mm | 1.85mm |
| 16BSA2 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 46.4mm | 6.6mm | 25.4mm | 25.4mm | 36.3mm | 15.9mm | 23.2mm | 34.0mm | 3.1mm |
| 20BSA2 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 58.1mm | 9.0mm | 31.75mm | 31.5mm | 50.3mm | 19.8mm | 30.5mm | 45.7mm | 3.5mm |
| 24BSA2 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 71.3mm | 10.5mm | 38.1mm | 38.1mm | 54.2mm | 26.1mm | 42.1mm | 61.5mm | 4.8mm |
Metric SK2 Attachment Dimensions
| Part # | Pitch (P) | Inner Width (B1) | Roller Link Width (B2) | Roller Dia. (D1) | Plate Height (K) | Dimension (M) | Dimension (DL) | Dimension (G) | Dimension (I) | Dimension (F) | Dimension (H) | Dimension (IF) | Dimension (HF) | Dimension (S) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 06BSK2 | 9.525mm | 5.72mm | 8.53mm | 6.53mm | 8.0mm | 17.72mm | 3.5mm | 9.525mm | 9.5mm | 13.5mm | 6.5mm | 9.5mm | 13.5mm | 1.3mm |
| 08BSK2 | 12.7mm | 7.75mm | 11.30mm | 8.51mm | 11.8mm | 24.0mm | 4.5mm | 12.7mm | 12.7mm | 18.2mm | 8.9mm | 13.4mm | 18.9mm | 1.6mm |
| 10BSK2 | 15.875mm | 9.65mm | 13.28mm | 10.16mm | 14.7mm | 29.6mm | 5.5mm | 15.9mm | 15.9mm | 22.3mm | 10.3mm | 16.5mm | 22.9mm | 1.7mm |
| 12BSK2 | 19.05mm | 11.68mm | 15.62mm | 12.07mm | 16.1mm | 34.0mm | 6.6mm | 19.1mm | 19.0mm | 26.2mm | 13.5mm | 21.5mm | 28.6mm | 1.85mm |
| 16BSK2 | 25.4mm | 17.02mm | 25.40mm | 15.88mm | 21.0mm | 46.4mm | 6.6mm | 25.4mm | 25.4mm | 36.3mm | 15.9mm | 23.2mm | 34.0mm | 3.1mm |
| 20BSK2 | 31.75mm | 19.56mm | 29.00mm | 19.05mm | 26.4mm | 58.1mm | 9.0mm | 31.75mm | 31.5mm | 50.3mm | 19.8mm | 30.5mm | 45.7mm | 3.5mm |
| 24BSK2 | 38.1mm | 25.40mm | 37.90mm | 25.40mm | 33.4mm | 71.3mm | 10.5mm | 38.1mm | 38.1mm | 54.2mm | 26.1mm | 42.1mm | 61.5mm | 4.8mm |
