Specification Brand : Gerrit BulletPoint1 : Type : Flange coupling BulletPoint2 : Aluminum alloy is light, the top screw is 90 degrees design; 45# steel hardness is high, the top screw is 180 degrees design. If you want to aluminum coupler ,please buy Aluminum Coupling BulletPoint3 : Material: 45# steel,hardened by heat treatment, and then electroplated BulletPoint4 : Inner Diameter:3mm,3.17mm,4mm,5mm,6mm,6.35mm BulletPoint5 : Hole Compression Nuts: Four-hole lock nuts are fastened with a four-hole flange, which is more secure and can be used longer. This is intended to distribute the pressure of the nut to the fixed parts, reducing the risk of damaging the parts and reducing the risk of being damaged by tighten. Color : Silver ExternallyAssignedProductIdentifier : 9423076122819 ItemName : Gerrit 3/4/5/6/7/8/10mm R11 Rigid Flange Coupling Iron Motor Guide Shaft Coupler Motor Connector Power Transmission Parts (Color : Silver, Size : 6mm) ItemPackageDimensions_Height : 1 centimeters ItemPackageDimensions_Length : 3 centimeters ItemPackageDimensions_Width : 2 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : set-screw-couplings Manufacturer : Gerrit ModelNumber : Gerrit NumberOfItems : 1 NumberOfPieces : 1 PartNumber : Gerrit ProductDescription : Cylindrical Diameter: 10mm; Cylinder Height: 10mm; Overall Height: 12mm; Fixed Hole Screw:M3Fixed Hole Distance:16mmInner Diameter:7mm,8mm,10mm,11mm,12mmCylindrical Diameter: 16mm; Cylinder Height: 10mm; Overall Height: 13mm; Fixed Hole Screw:M4Fixed Hole Distance:26mm(11mm/12mm/14mm);24mm(others)Inner Diameter:14mmCylindrical Diameter: 18mm; Cylinder Height: 10mm; Overall Height: 13mm; Fixed Hole Screw:M4Fixed Hole Distance:26mmPackage Included:Coupler x 1Spanner x 1Screw x 2 ProductSiteLaunchDate : 2024-04-15T04:26:47.358Z Size : 6mm