Specification Brand : HELIFOUNER BulletPoint1 : 【Sizes】 M3 x 30mm /35mm /40mm /45mm /50mm hex socket head cap screws with matching hex nuts, lock washers and flat washers, total 5 sizes, different sizes can meet your different needs. BulletPoint2 : 【Material】Made of high quality 12.9 grade alloy steel and the surface is treated with black oxide, high hardness, no deformation, anti-oxidation, wear resistance, corrosion resistance, which can ensure long time using. BulletPoint3 : 【Package】400 pieces in total, packed in a durable transparent box with label. It is easy to distinguish the size of the product, when you want to use a certain screw, you don't have to waste time buying it separately, you can choose the suitable one to meet all your needs. BulletPoint4 : 【Wide Applications】Widely used in all kinds of precision machinery industry, classified instruments, instruments, electronic products, printed projects, household appliances, communication products, locks, lamps, lights, toys, etc. BulletPoint5 : 【Tips】Products contain small parts, keep away from children and prevent inadvertent swallowed. All screws are special sharp with screw thread, please keep away from kids. Whenever you need us, please free to contact us, we will give you a professional service and reply you within 24 hours. Color : Black CompatibleGrooveDiameter : 6 millimeters DriveSystem : External Hex ExteriorFinish : Black Oxide ExternallyAssignedProductIdentifier1 : 749355462865 ExternallyAssignedProductIdentifier2 : 0749355462865 FinishType : Black Oxide GradeRating : 12.9 ItemDisplayDimensions_Length : 5 inches ItemName : HELIFOUNER 400 Pieces M3 x 30mm /35mm /40mm /45mm /50mm, Hex Socket Head Cap Metric Screws Bolts Washers Nuts Kit, 12.9 Grade Alloy Steel, Fully Threaded, Black ItemPackageDimensions_Height : 20.6 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 13.8 centimeters ItemPackageQuantity : 1 ItemShape : Hexagonal ItemTypeKeyword : socket-cap-screws Manufacturer : HELIFOUNER ManufacturerGrade : Grade A Material : Alloy Steel MaximumShearStrength : [310] MPa MeasurementSystem : Metric MetalType : Alloy Steel ModelNumber : HELIFOUNER-Screw NumberOfItems : 400 NumberOfPieces : 400 PartNumber : HELIFOUNER-Screw ProductDescription : 【Specifications:】 - Size: M3 - Color: Black - Pitch: 0.5mm - Drive Type: Internal Hex - Package Quantity: 400 Pieces - Material: 12.9 Grade Alloy Steel - Screws Type: Hex Socket Head Screws
【Features:】 - 12.9 grade alloy steel with black oxide, high hardness, no deformation, anti-oxidation, wear resistance, corrosion resistance. - The nuts and flat washers expand the contact area and reduce the pressure in order to protect the screws and parts. - Compact and force uniform screw thread is not easy to out of shape and slid in the process of rolling and installation. - Widely used in automotive, boating, printed projects home appliance, communication equipment and other machinery industry.