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SAE MA 1937A-2018
Nut, Hex, Free Running, Procurement Specification For, Metric
This procurement specification covers alloy steel and corrosion and heat resistant steel free running metric nuts of the following types, styles and classes. a. Types: Hex nut plain, standard height; Hex nut plain, shear height; Hex nut slotted, standard height; Hex nut slotted, shear height b. Styles: Washer face; Double chamfered; Castellated c. Classes: 516 MPa axial strength, min (shear height nuts); 600 MPa axial strength, min (shear height nuts); 860 MPa axial strength, min; 1000 MPa axial strength, min
Society of Automotive Engineers [sae]