Premium-grade quick links for chain/rope,cable connections; threaded-nut closure for added security * Grade 316 stainless steel has superior corrosion resistance and strength over grade 304 * Excellent choice for boating, sailing, marine and other harsh-condition applications * Working load limits: 1/8" 220 lbs, 3/16" 660 lbs, 1/4" 880 lbs, 5/16" 1760 lbs, 3/8" 2200 lbs * Available in link-thickness x length 1/8 x 1-3/8" to 3/8" x 3-1/2"; see description