SPELTER SOCKETS NOTICE : All cast steel sockets 1 5/8\" and larger are magnetic particle inspected and ultrasonic inspected, Proof testing available on special order.Forged Steel Sockets thru 1 1/2\", cast alloy steel 1-5/8\" thru 4\" Spelter socket terminations have an efficency rating of 100%, based on the catalog strenght of wire rope. Ratings are based on recommended use with 6 ×7, 6 ×19, or 6 ×37, IPS or XIP (EIP), XXIP(EEIP), RRL, FC, or IWRC wire rope. Open Grooved Sockets meet the performance requirements of Federal Specification RR-S-550D, Type...