General description Open Body Turnbuckle Eye and Eye 1 1/4" x 18" are designed for tightening, tensioning, and adjusting in various wire rope applications. These turnbuckles feature an open body design, allowing users to easily monitor the rate of turning. They are commonly referred to as Straining Screws and are compatible with both chain and cable, making them popular in the caravanning industry. Technical specifications Material: Hot Dipped Galvanised Steel Weight: 8.6 kg Dimensions (Inches): A - 1.25, J - 40.31, K - 28.31, M - 42.56, N - 30.56, R - 3.56, S - 1.81, X - 7.72, BB - 12.00 Specification: Federal Specifications FF-T-791b, Type Form 1-class 4