Hex Nut Hex Type Standard Hex Finish Plain Material Grade/Class 18-8 Material Stainless Steel Thread Size 1 1/2 In.-6 Hex Width 2 1/4 in Hex Height 1 9/32 in Manufacturer Location Globally Sourced Dimensional Standards ASME B18.2.2 Material Quality Standards ASTM A307A System of Measurement Inch Thread Direction Right Hand Color Silver Made in North America No Maximum Temperature 302 Degrees F Minimum Temperature -58 Degrees F Minimum Yield Strength 700 N/sq mm