Specification Brand : Fast Flange Sustainbly Sourced Fasteners BulletPoint1 : 100 Pieces Total BulletPoint2 : RoHS, REACH, Prop 65 Compliant BulletPoint3 : Attached Flanged Bearing Surface BulletPoint4 : Diameter/Pitch: 5/16"-18 | Coarse Thread BulletPoint5 : Material: Grade 8 | Finish: Zinc Phosphate & Oil BulletPoint6 : Ships in small polybag with description, quantity, item #, lot #, and country of origin DriveSystem : Hex ExteriorFinish : Black Phosphate FinishType : Phosphate & Oil GradeRating : Grade 8 ItemName : (100 Pieces) 5/16"-18 Grade 8 Hex Flange Nuts Zinc Phos & Oil ItemPackageQuantity : 25 ItemTypeKeyword : flange-nuts Manufacturer : Fast Flange Material : Carbon Steel MetalType : Carbon Steel NumberOfItems : 100 PartNumber : F11535 ProductDescription : Grade 8 hex flange nuts are widely used in applications where a strong, secure hold is needed, and a built-in washer is beneficial for distributing load and preventing damage. Flange nuts eliminate the need for separate washers, making them convenient and effective in high-vibration and load-bearing applications. Coated in zinc phosphate and oil to withstand 72 hours until the appearance of red rust. ProductSiteLaunchDate : 2022-03-22T12:24:43.555Z Size : 5/16"-18 SupplierDeclaredDgHzRegulation : not_applicable SupplierDeclaredHasProductIdentifierExemption : 1