Specification Brand : Small Parts BulletPoint : Ceramic Plunger BulletPoint1 : Body and Nose Material is Steel with Black Oxide Finish BulletPoint2 : Package Dimensions: 2.5 H x 4 L x 8.5 W (inches) BulletPoint3 : Package Weight: 0.05 pounds BulletPoint4 : Country of Origin : United States BulletPoint5 : Instructions - By operating the knob to pull out or insert the pin, you can easily and quickly locate and fix the mechanical elements of the workpiece. Color : Black ExteriorFinish : Heat Treatment FitType : Vehicle Specific IncludedComponents1 : inc IncludedComponents2 : inc IncludedComponents3 : inc IncludedComponents4 : inc IncludedComponents5 : inc ItemDisplayDimensions_Diameter : 0.39 inches ItemName : TE-CO 52403X Plunger, Spring with Out Lock, 1/4-20 (Pack of 5) ItemPackageDimensions_Height : 2.5 inches ItemPackageDimensions_Length : 4 inches ItemPackageDimensions_Width : 8.5 inches ItemPackageQuantity : 1 ItemTypeKeyword : ball-nose-spring-plunger Manufacturer : TE-CO Material : Steel ModelName : 5150 ModelNumber : 52403X NumberOfBoxes : 1 NumberOfItems : 5 NumberOfPieces : 1 OeManufacturer : DICSCL PARCS PartNumber : 52403X01 PinType : Spring PowerSourceType : gas_powered , Electric , etc ProductDescription : The spring pin is made of stainless steel, which has high hardness, corrosion resistance, rust resistance, and durability. The spring plunger with a knurled handle for manual expansion and contraction. And equipped with nuts to lock in various mechanical equipment. It is an important part or component of the machine. It is used for locking and fixing the base of the optical axis fixture and is practical and convenient. widely used in precision structural positioning and limit design in non-standard automation industries and tooling fixtures. It is also used in cabinets, electrical appliances, and cars.