- Diameter - Thread Size: 5/16-18
- Hardness: HRC 24 to 32
- Height: 17/64 in
- Measurement System: Imperial
- Thread Direction: Right Hand
- Thread Type: UNC
- Width Across Flats: 1/2 in
- Wrench Size: 1/2 in
- Material: Medium Carbon Steel
- Material Grade: 8
- Surface Treatment: Plain
- Standards
ASME/ANSI B18.2.2