B-7 alloy steel threaded rods are heat treated 4100 series alloy steel and provide superior strength compared to regular threaded rods.
National Course Threads, Size is listed as Diameter - Threads per Inch.
B7 Alloy Steel Fully Threaded Rod
Size: 7/8 inch
Threads per Inch: 9
Tolerances: Length: (+/- 1/8 inch)