Specification Brand : DEWHEL BulletPoint1 : Aluminum BulletPoint2 : Hydraulic jack valve release screw knob Compatible with Harbor Freight hydraulic bottle jacks and used for 6, 12, or 20 ton mandrel presses and other bottle jacks with a 3/8" diameter valve release screw. BulletPoint3 : Important Note:Valve release screw knob is intended for hydraulic press applications only,DO NOT USE WHEN LIFTING VEHICLES BulletPoint4 : Size:3/8" Diameter valve release screw BulletPoint5 : In Package : 1×hydraulic press jack valve knob, 1×set screw, and 1×Allen wrench. Color : Silver CompatibilityOptions : Harbor Freight hydraulic press CompatibleWithVehicleType : Car IncludedComponents : No ItemDisplayWeight : 2.04 pounds ItemName : DEWHEL Aluminum Knob Bottle Jack Valve Release Screw on Compatible with Harbor Freight Hydraulic Press 3/8”Dia Valve Release Screws ItemPackageDimensions_Height : 5.588 centimeters ItemPackageDimensions_Length : 4.3942 centimeters ItemPackageDimensions_Width : 5.4102 centimeters ItemTypeKeyword : scissor-lift-jacks LoadCapacity : 6 tons Manufacturer : DEWHEL Material : Aluminum ModelName : Bottle Jack Valve Release Screw Knob ModelNumber : DE-8535 NumberOfItems : 1 PartNumber : DE-8535 ProductDescription : Hydraulic jack valve release screw knob is made of Aluminum Knob is Compatible with Harbor Freight hydraulic bottle jacks and used for 6, 12, or 20 ton mandrel presses and other bottle jacks with a 3/8" diameter valve release screw. Easy Install :Slide Knob on over the release screw, turns 1/4 turn and secure the set screw using a 5/32 hex wrench (Allen wrench) for a quick and hassle-free installation. Important Note :Valve release screw knob is intended for hydraulic press applications only and should not be used for lifting vehicles. In Package : 1×hydraulic press jack valve knob, 1×set screw, and 1×Allen wrench. Size : 3/8" Style : hydraulic SupplierDeclaredDgHzRegulation : not_applicable UnspscCode : 40141600 WarrantyDescription : No