Master Link / Connecting Link 410H (Heavy Duty for 410H chain ONLY) 1/2" x 1/8" Nickel Plated.

If you try to use a 410H master links with standard 410 chain the plate does not fit tight against the rollers.

Note:  The 410"H" has 20% thicker plates and pins then the standard 410 chain.

Chain 410H Silver Nickel 1/2" x 1/8" 114 Links