Selden Anti-twist shackles M6,L=220
545-030-01R
Anti-twist shackles CX10, GX7.5, GX10
The Anti-Twist shackle is an optional shackle connecting the halyard to the halyard swivel. The long pin will lean against the mast and prevent a “soft” halyard from twisting.
This shackle is not necessary for a 2:1 halyard set up nor is it for a high quality Dyneema ®halyard.