Specification Brand : Carr Lane Manufacturing BulletPoint1 : A: M8 BulletPoint2 : Initial End Force: 3.9 BulletPoint3 : Final End Force: 8.8 BulletPoint4 : B: .58 BulletPoint5 : C: .039 ItemName : CLM-8-BP-1 Carr Lane Manufacturing Ball Plunger, Steel Body: Thread M8 ItemPackageQuantity : 1 ItemTypeKeyword : ball-nose-spring-plunger Manufacturer : Carr Lane Manufacturing Material : stainless_steel Material1 : stainless_steel Material2 : steel PartNumber : CLM-8-BP-1 ProductDescription : Self-contained ball-and-spring device available in many sizes and forces. Available in steel, stainless steel, or Delrin½, all with a stainless steel ball. Locking element holds the unit securely in place after installation (steel and stainless only). Install and/or adjust from either end (when using the slot at the ball end, install with a Plunger Wrench to avoid over-compressing the spring). Note: the three smallest sizes, and all Delrin sizes, have no slot at the ball end. Made in USA. ProductSiteLaunchDate : 2013-12-19T23:52:07.321Z SupplierDeclaredDgHzRegulation : unknown