As it can be understood from the title of this standard specification, ASTM F1145-92 is dedicated to the turnbuckles. These devices are the loops or sleeves that have been threaded internally to easy assembling with a threaded eyes, hooks, or jaws at each of the ends - they are used where there is a necessity to apply some tension to the wire ropes, rods etc.
The document is full of technical details and useful information. Even if you do not intend to use it as the regulatory document, the info provided in the publication will definitely let you better understand the construction of these items, materials they are usually fabricated from, applicable requirements, dimensions of the manufactured products and tolerances that have to be taken into consideration when checking the items, tests that are required in order to ascertain the quality and fitness for use of such equipment etc.
A truly invaluable reference source for any person involved in ordering of the turnbuckles, as well as for crew members and even students, taking into account the amount of the technical information presented. The readers who spend some of their time with this paper will get much better idea of the equipment pieces it is dealing with.