Specifications include, but are not limited to: 1. Spring Coil Wire: a. Thickness a. Minimum: 15 gauge b. Maximum: 13.5 gauge b. High carbon and hard drawn steel spring wire c. Be of coiling and knotting quality d. Hour glass shape e. Height Minimum: 5 inches f. Contains five (5) active turns per coil g. Be knotted at both ends h. Have a top and bottom diameter appropriate in size to the coil count used in construction i. Be tempered to meet the Coil Compression Test as follows: The decrease in height shall not exceed l/8 inch after the coil has been compressed 60% of the height of the coil for 20 times. The sample(s) may be tested to verify compliance with the following parameters – Width and Length, Coil Count. 2. Coils: The number of coils required shall be as specified in the detailed specifications section listed below. 3. Helical Ties shall: a. Be tempered b. Be made of high carbon steel lacing wire 1) Diameter Minimum: 0.0475 inch 2) Thickness Minimum: 17.5 gauge