Specification Brand : binifiMux BulletPoint1 : [❉] Material: A2-70 / 18-8 / 304 Stainless Steel; BulletPoint2 : [❉] Package: 280pcs M3 Screws and 220pcs Nuts; BulletPoint3 : [❉] Name: M3 Countersunk Screws Nuts Kit; BulletPoint4 : [❉] Features: anti-rust, study, hardness; BulletPoint5 : [❉] Sizes: M3 x 6mm / 8mm / 10mm / 12mm / 16mm / 18mm / 20mm / 25mm / 30mm; BulletPoint6 : [❉] Usually used for 3D printers and toys; BulletPoint7 : [❉] Kind reminder: if unit can't satisfy please contact my team first for meet your needs. Color : Silver ExteriorFinish : Steel ExternallyAssignedProductIdentifier1 : 680727735678 ExternallyAssignedProductIdentifier2 : 0680727735678 FinishType : Plain GpsrSafetyAttestation : 1 GradeRating : Grade 304 ItemName : binifiMux 500pcs M3 Phillips Countersunk Flat Head Machine Screws Hex Nuts Assortment Kit 304 Stainless Steel, M3 x 6mm / 8mm / 10mm / 12mm / 16mm / 18mm / 20mm / 25mm / 30mm ItemPackageDimensions_Height : 19.05 centimeters ItemPackageDimensions_Length : 3.175 centimeters ItemPackageDimensions_Width : 10.795 centimeters ItemPackageQuantity : 1 ItemShape : Hexagonal ItemTypeKeyword : hardware-nut-and-bolt-sets Manufacturer : binifiMux Material : Stainless Steel 304 MetalType : Alloy Steel ModelNumber : LL_1/2NPT_BUNG NumberOfItems : 2 NumberOfPieces : 500 PartNumber : CF-650 ProductDescription : [Content:] M3 x 30mm --- 20Pcs M3 x 25mm --- 20Pcs M3 x 20mm --- 20Pcs M3 x 18mm --- 40Pcs M3 x 16mm --- 40Pcs M3 x 12mm --- 40Pcs M3 x 10mm --- 40Pcs M3 x 6mm --- 40Pcs M3 x8mm --- 40Pcs 220pcs --- M3 Hex Nuts
[About Countersunk Screws:] The countersunk screws are mostly used in places where the surface of the parts cannot be raised after installation. The parts to be fastened are thick and thin. The so-called thick, that is, the thickness of the parts to be fastened is larger than the head of the countersunk head screw. Thickness, after the screw is tightened, a part of the screw thread does not enter the threaded hole.