Home / Nuts & Inserts / Flange Nuts Flange Nuts Filters Diameter1/4"5/16"Diameter/Thread Size1/4"-205/16"-18Thickness0.236"0.283"0.300"Drive Size7/16"1/2"MaterialSteelGradeCase HardenedGrade GTypeNon-Serrated Top LockSerratedFinishBlack PhosphateZinc Clear Sort Sort by popularity Sort by latest Sort by price: low to high Sort by price: high to low Showing all 3 results Part No. Part Description Qty. Price 12719-pk 1/4"-20 Flange Top Lock Nut, UNC, Grade G Steel, Black Phosphate 100/PACK $8.98 12719-cs 1/4"-20 Flange Top Lock Nut, UNC, Grade G Steel, Black Phosphate 4,000/CASE Currently UnavailableSee Related Items Below 11065-pk 1/4"-20 Serrated Flange Nut, UNC, Case Hardened Steel, Zinc 100/PACK Call for price 11065-cs 1/4"-20 Serrated Flange Nut, UNC, Case Hardened Steel, Zinc 5,000/CASE Call for price 11066-pk 5/16"-18 Serrated Flange Nut, UNC, Case Hardened Steel, Zinc 100/PACK Call for price 11066-cs 5/16"-18 Serrated Flange Nut, UNC, Case Hardened Steel, Zinc 3,000/CASE Call for price