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| 
 British Standard SA-1 & SK-1 Attachments Roller Chains  | 
||||||
| 
 Chain  | 
 Pitch  | 
 I  | 
 Q  | 
 J  | 
 L  | 
 O  | 
| 
 P  | 
||||||
| 
 mm  | 
||||||
| 
 06B*  | 
 9.525  | 
 8.00  | 
 9.52  | 
 13.50  | 
 1.30  | 
 3.50  | 
| 
 08B  | 
 12.700  | 
 9.50  | 
 13.35  | 
 18.90  | 
 1.60  | 
 4.30  | 
| 
 10B  | 
 15.875  | 
 14.30  | 
 16.50  | 
 22.95  | 
 1.70  | 
 5.30  | 
| 
 12B  | 
 19.050  | 
 16.00  | 
 21.45  | 
 28.60  | 
 1.85  | 
 6.40  | 
| 
 16B  | 
 25.400  | 
 19.10  | 
 23.15  | 
 34.00  | 
 3.10  | 
 6.40  | 
Note: check attachment dimensions before ordering since manufacturing standards may vary
* Bush chain