Specification Brand : uxcell BulletPoint : Price For: Each System of Measurement: Inch Head Type: Knurled Item: Thumb Screw Rockwell Hardness: B68 to B71 Tensile Strength: 57, 000 Class: 2A Thread Size: 1/4-20 Material: Steel Length: 3/4" Finish: Black Oxide Head Height: 1/2" Head Dia.: 5/8" Country of Origin (subject to change): United States BulletPoint1 : Thread Size: M6 x 25mm / 0.24" x 1"; Total Length: 31mm / 1.22" BulletPoint2 : Weight: 143g; Product Name: Thumb Screw BulletPoint3 : Material: Metal; Package Content: 8pcs x Thumb Screw BulletPoint4 : Thread Pitch: 1mm; Color: Silver Blue BulletPoint5 : Head Diameter: 20mm / 0.8" Color : silver DriveSystem : Thumb ExteriorFinish : Black ExternallyAssignedProductIdentifier : 7440105270053 GpsrSafetyAttestation : 1 Hazmat : auto-grounding ItemName : uxcell M6x25mm Knurled Head Flat Point Fully Threaded Thumb Screws Fastener 8pcs ItemPackageDimensions_Height : 13 centimeters ItemPackageDimensions_Length : 2.7 centimeters ItemPackageDimensions_Width : 9.6 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : thumb-screws Manufacturer : uxcell Material : Metal MeasurementSystem : Metric MeasurementSystem1 : Imperial MeasurementSystem2 : Metric MetalType : Carbon Steel MetalType1 : Zinc MetalType2 : Carbon Steel ModelNumber : a16122700ux0387 NumberOfItems : 1 PartNumber : a16122700ux0387 ProductDescription : Thumb screws are designed to be tightened and loosened by hand. Large head diameter makes it easy to access and tighten. The thumb screw has a straight knurled surface on its head. This gives it better gripping surface, making it easier to tighten or loosen the fastener manually.