snippet: Female Thread Length: 1/2". Finish: Plain. Hardness: Rockwell B70. Hex Size: 5/16". Length Tolerance: -0.005" to 0.005". Male Thread Length: 3/8". Pack Quantity: 1. Shape: Hex. Specifications Met: ASTM A380. System of Measurement: Inch. Thread Size: 10-32. Type: Standoff