Flange bolts & Nuts, Hex Bolts, Hexagon Socket Bolts, OEM Special BoltsFlange bolts are those type of bolts having a ridge or skirt around the bolt head. They are also know as frame bolts and are designed to provide the holding power as if a washer was installed. Please check the types as below:Hex BoltsHexagon Socket BoltsEye BoltsCarriage BoltsHammer / Channel BoltsT-Head BoltsOval Neck Track BoltsOEM Special Bolts Standard:DIN 931, DIN 933, DIN 558, DIN 601, DIN 960, DIN 961, ISO 4014, ISO 4017, JIS B 1180, ANSI B 18.2.1Mechanical Properties:Metric Grades : 4.6, 8.8, 10.9, 12.9Inch Grades : 2, 5, 8Mechanical Properties:Material: A193 B7/A194 2H; A193 B7M/A194 2HM; A193 B8/A194 8; A193 B8M/A194 8M; A193 B16/A194 4/7; A320 L7/A194 4/7; A320 L7M/A194 7MSurface: black, galvanized, nickel plated, cadmium plated, Teflon platedFlange NutsA flange nut is a nut that has a wide flange at one end that acts as an integrated, non-spinning washer.Flange nutsType:Welding Nuts, Wing Nuts, Nylon Self-locking Nut, Round Nuts, Acorn Nuts, Slotted Nuts, Square Nuts, Long Nuts, Hex Nuts, Flange Nuts, Eye Bolts, Tubing Nutsmaterial: carbon steel stainless steel, alloy steel, SWRCH8A, SWRCH35K, Q195LY,35#, 45#, 40CrMo.....Surface: black,yellow zinc, white zinc, white blue zinc, H.D.G. , Dakeluo .specification:M3-M27standard: DIN6923, JIS1190, IFI D-21Thread: Mm, unc, unf, and bswPacking:Papercarton or bag in a stronger pallet Spherical Flange NutsSpherical Flange Nutsmaterial: carbon steel stainless steel, alloy steel, SWRCH8A, SWRCH35K, Q195LY,35#, 45#, 40CrMo.....Surface: Black Oxide Finish, Case Hardened, 12L14 Materialspecification:M8 -M36When used with Spherical Washers, Flange Nuts will equalize thread loadsMany sizes conform to TCMAI standardsStandard package quantity: 41801-41807: 25 pcs. Malleable Iron Pipe Fittings Description of The Items Sizes:1/4"-6"

