Batten Hardware made of High-Grade Nylon batten protectors. Nylon Jib Twist on Hank, Sailmakers Nylon headboards for Spinnakers and Mainsails. High-Grade Nylon Sail Rings. High-Grade Nylon sail shackles- screw fixing and snap fixing. Thimbles made of high-quality nylon and 316 stainless steel for wire and rope halyards and general rigging from 2mm to 18mm.