NOS New Old Stock Purchased from Pete from Hyperformance over 20 plus years ago. I think the screw is made of the correct material and nut as Pete had multiply items licensed by Schwinn. Correct for Schwinn Stingray Krate 1968-73  Schwinn part # 31-665, Adjusting Barrel & Lock Nut, fits atom drum brake front wheel all years and 1971-73 Rear Disc Brake Wheel. I have THREE of these!!!! Price is for 1 not all three. 

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