Specification Brand : HARFINGTON BulletPoint1 : Size - M8x1.25 thread size, Thread Length: 16mm / 0.63 inches; Pin Diameter: 4mm / 0.16 inches(-0.02 to -0.05mm tolerance); Pin Length: 4.75mm / 0.19 inches. Small and lightweight for easy carry with you. BulletPoint2 : Material - The spring pin is made of stainless steel, which is rust-proof, corrosion-resistant, heat-resistant, and durable. BulletPoint3 : Feature - The spring plunger with a knurled handle for manual expansion and contraction. And equipped with nuts to lock in various mechanical equipment. BulletPoint4 : Application - A telescopic lock pin is an indispensable accessory in the machinery industry, which can prevent inaccurate positioning and errors in pinhole matching. It is widely used in chassis, cabinets, electrical appliances, automotive, or the positioning and limit structure design of precision instruments such as jigs and fixtures. 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. FinishType : Black Oxide Finish ItemName : HARFINGTON 3pcs Spring Plunger M8x1.25 Thread Size Pin Dia.4mm Retractable Quick Release Pins Stainless Steel Lock Out Type Index Plunger for Industrial Equipment ItemPackageDimensions_Height : 16.9164 centimeters ItemPackageDimensions_Length : 1.905 centimeters ItemPackageDimensions_Width : 8.3058 centimeters ItemPackageQuantity : 1 ItemTypeKeyword : ball-nose-spring-plunger Manufacturer : HARFINGTON Material : Stainless Steel ModelNumber : K0348.071016 NumberOfItems : 1 NumberOfPieces : 1 PartNumber : hta241004hh001646 PinType : Locking Pin 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.