The following air cleaner fasteners are for use with Trans-Dapt Performance Products' chrome and Aluminum Air Cleaners
 
Part # ProductTube DiameterTube StyleEngineThread SizeFinishKEY FEATURELengthMaterialSizeStud SizeUse With Media
2174 3" Air Cleaner Stud and Stamped Wing Nut (1/4"-20) StampedZINC/STEEL1/4"-201/4"-20 x 3"
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$1.23
2175 6" Air Cleaner Stud and Stamped Wing Nut (1/4"-20) StampedZINC/STEEL1/4"-201/4"-20 x 6"
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$1.64
2178 4" Air Cleaner Stud and Stamped Wing Nut (1/4"-20) StampedZINC/STEEL1/4"-201/4"-20 x 4"
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$1.23
2179 TRI-BAR Air Cleaner Wing Nut (1/4"-20 threads)- CHROME StampedZINC/STEEL1/4"-20
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$2.71
2160 Air Cleaner Wing Nut 1/4"-20; Knurled- Chrome Round with KnurlingCHROME/STEEL1/4"-20
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$7.30
 
http://hedman.com/images/ePIM/original/2174.jpg
http://hedman.com/images/ePIM/original/2175-G.jpg
http://hedman.com/images/ePIM/original/2178.jpg
http://hedman.com/images/ePIM/original/2179.jpg
http://hedman.com/images/ePIM/original/2160.jpg