Our superior 12B A1 attachment connecting link is designed explicitly for metric 19.05mm pitch 12B chain and conforms to ISO and DIN dimensional standards for direct interchangeability. Each precision component of this 12B A1 attachment is made from top-quality carbon steel that has been heat-treated for extended working life and durability. We supply this attachment as a standard connecting link (master link) or assembled onto the 12B roller chain in specific increments. Design-wise, the 12B A1 attachment has a bent tab on one side with one hole for mounting. For additional information or to get a quote on our 12B A1 attachments, contact our customer service team, and we will gladly assist you.

12B A1 Attachment Dimensions

• Part #: 12B A1
• Configuration: One Hole on One Side
• Pitch (P): 19.05mm
• Inner Width (B1): 11.68mm
• Roller Link Width (B2): 15.62mm
• Roller Diameter (D1): 12.07mm
• Plate Height (G): 16.1mm
• Attachment Width (M): 16.0mm
• Attachment Hole I.D. (DL): 6.6mm
• Dimension (I): 19.05mm
• Dimension (F): 26.20mm
• Dimension (H): 13.46mm
• Plate Thickness (S): 1.85mm