Fangrui Product Details Wing Nuts Assorted: Wing Nut Or Butterfly Nut Is A Type Of Nut With Two Large Metal Wings, One On Each Side, So It Can Be Easily Tightened And Loosened By Hand Without Tools; Quality: Made From 304 Stainless Steel, These Nuts Have Good Chemical Resistance And May Be Mildly Magnetic. The Wings Provide More Leverage For Greater Torque While Tightening Than Knurled-head Thumb Nuts; Using: Wing Nuts Are Used When A Part Is Often Assembled And Disassembled By Hand, Where No More Than Finger Pressure Is Needed. They May Be Used With Or Without A Washer. The Ease Of Use Also Make Wing Nuts Popular For Applications In Which Convenience Is Vital, Such As On Boats And Bicycles; Easy To Use: Twist The Nut By Hand Without Any Other Tools, Easy To Install. Easy To Install And Remove, Can Be Used Repeatedly. Widely Application: Wing Nuts Are Suitable For Places With High Adjustment Frequency, Such As Industrial Manufacturing Contains: 100 Nuts ( M3(25pcs), (25pcs), M5(20pcs), M6(10pcs), M8(10pcs), M10(6pcs), M12(4pcs