Specification Brand : Hillman BulletPoint : Material: Brass BulletPoint1 : Item Weight: 1.3 lb BulletPoint2 : Country of Origin: China BulletPoint3 : Brand name: The Hillman Group BulletPoint4 : Item Dimensions: 4.5"L x 3.5"W x 2.1"H BulletPoint5 : Total Length: 4mm / 0.16"; Thread Style: Fully Thread Color : Black DriveSystem : Phillips ExteriorFinish : Black Phosphate ExternallyAssignedProductIdentifier1 : 008236156522 ExternallyAssignedProductIdentifier2 : 0008236156522 ExternallyAssignedProductIdentifier3 : 00008236156522 ItemDisplayWeight : 1.3 pounds ItemName : 100PC 10X2-1/2 CAB Screw ItemPackageDimensions_Height : 11.8 centimeters ItemPackageDimensions_Length : 5.7 centimeters ItemPackageDimensions_Width : 8.9 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : machine-screws Manufacturer : The Hillman Group Material : Steel MeasurementSystem : Imperial MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Alloy Steel ModelName : 39279 ModelNumber : 39279 NumberOfItems : 1 NumberOfPieces : 100 PackageLevel : unit PartNumber : 39279 ProductDescription : Tamper Proof Security Torx Machine Screws. Special drivers are required for the installation and removal of Security fasteners. These fasteners are made from highly corrosion resistant 304 stainless steel making them both tamper and weather resistant. Anti Theft Machine Screws provide a higher level of security for you with their drive design, which prevents removal with normal screw drivers. Used widely in the home and office appliance, communication equipments, ship assembly and other machinery industry.