YHM YHM-3410-B | .22/5.56 Thread Protector | 1/2-28

This Yankee Hill Machine YHM-3410-B is a steel thread protector designed to shield barrel threads on .22 / 5.56-caliber rifles when a muzzle device is not installed. It provides a simple, durable barrier that minimizes wear to the thread profile during transport and storage. The protector’s matte black finish and compact form make it unobtrusive on the muzzle while not in use.

Applications include protecting barrel threads during range transport and storage, and serving as a placeholder while swapping or servicing muzzle devices. The product is intended for use where thread protection and basic corrosion resistance are required.

Product Specifications

• The manufacturer is Yankee Hill Machine.
• The part number / model is YHM-3410-B.
• The product type is a Thread Protector.
• The listing identifies the caliber as .22/5.56.
• The thread size is 1/2-28.
• The outer diameter is listed as .920 OD.
• The finish is specified as Matte.
• The color is Black.
• The material is described as steel in the product text.
• The protector’s purpose is to protect barrel threads when a muzzle device is not installed.
• The listed weight is .125 (unit not specified in source).
• Compatibility is described for .22/5.56 caliber barrels per the listing.
• The UPC is 816701013870.

Built from steel with a subdued matte finish, the YHM-3410-B offers a straightforward solution for users who need reliable thread protection without added bulk. Its listed 1/2-28 thread form and .920 outer dimension make it suitable for typical .22/5.56 barrel profiles where those dimensions are compatible. The thread protector is a practical accessory for anyone who routinely removes or swaps muzzle devices and wants to maintain the barrel’s thread integrity in storage or transit.