- Thread Size
- 1/4, 3/8, 1/2, 5/16, 5/8, 3/4 inch
- Thread Count
- 13 (1/2 inch), 16 (3/8 inch), 10 (1/4 inch, 5/8 inch, 3/4 inch)
- Width Across Flats
- 3/16, 9/16, 3/4, 1 1/8, 5/8, 1/2 inch (varies by size)
- Height
- 1/16, 5/16, 7/16, 1/4, 5/8, 3/8 inch (varies by size)
- Socket Wrench Size
- 1/16, 9/16, 3/8, 1/8, 5/16, 7/16 inch (varies by size)
- Material
- Metal (including steel, brass, wrought iron, and others)