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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 |
Frequently Asked Questions
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If your order is less than $300, no problem! Please give us a call at 407-347-3519 or email Sales@usarollerchain.com, and we will be happy to assist you!
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USA Roller Chain utilizes an extensive network of vendors and warehouses to ensure you get your items quickly! Our primary roller chain warehouse is located in Clermont, FL, but we have warehouses located all across the United States. Your order will be shipped from the closest warehouse to you that has your requested product in stock. This speeds up transit times and saves you money on shipping! If you have any questions about where an item will ship from, please CONTACT US
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In-stock items are typically shipped out in 1-3 business days.Made-to-order item lead times vary from 1-2 days up to 14-20+ weeks, depending on the product. If you need your items urgently, please let us know, and we will do our best to meet your required delivery date! If you have any questions, please CONTACT US
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If you are having an issue with your order, please CONTACT US as soon as possible so we can resolve it for you.
Most in-stock items can be returned within 30 days of the shipment date. MTO or Custom orders are not eligible for a return or refund. For a detailed explanation of our return policies, please click here.
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Absolutely! We may be called "USA Roller Chain", but we ship worldwide! Please CONTACT US for Export/International quotes or orders.