403.9.2 Number of threads.
FGC § 403.9.2
Field threading of metallic pipe shall be in accordance with Table 403.9.2. Table 403.9.2Specifications for Threading Metallic Pipe Iron Pipe Size(inches)Approximate Length of Threaded Portion(inches)Approximate Number of Threads to be CutIron Pipe Size(inches)Approximate Length of Threaded Portion(inches)Approximate Number of Threads to be Cut1/23/4 10 3/4 3/4 10 1 7/8 10 1 1/41 11 1 1/21 11 2 1 11 2 1/21 1/212 3 1 1/212 4 1 5/813 For SI: 1 inch = 25.4 mm.













