Specification Brand : Carr Lane Manufacturing BulletPoint1 : A: 1/4-20 BulletPoint2 : Initial End Force: 3 BulletPoint3 : Final End Force: 13 BulletPoint4 : B: 1 BulletPoint5 : C: 3/16 ItemName : CL-40-SPS-1 Carr Lane Manufacturing Spring Plunger, Standard Nose, Heavy Force: Thread 1/4-20 ItemTypeKeyword : ball-nose-spring-plunger Manufacturer : Carr Lane Manufacturing Material : stainless_steel PartNumber : CL-40-SPS-1 ProductDescription : Self-contained plunger-and-spring device available in many sizes and forces. Long bearing length on plunger for smooth operation. Locking element holds the unit securely in place after installation. Install and/or adjust from either end (when using the slot at the plunger end, install with a Plunger Wrench to avoid over-compressing the spring). Available in steel, with a hardened plunger nose, or stainless steel. Made in USA. ProductSiteLaunchDate : 2013-12-15T23:04:25.474Z SupplierDeclaredDgHzRegulation : unknown