YHM-3414-B Thread Protector | 5/8-24 | .920 OD

The Yankee Hill Machine YHM-3414-B is a steel thread protector designed for .308-caliber rifle barrels with 5/8-24 threads and a .920 OD profile. It guards the barrel’s threads when a muzzle device is not installed, preserving thread integrity during storage and transport. Finished in matte black, this protector offers a low-profile fit that minimizes snagging and provides durable surface protection. Typical applications include range use and secure transport or storage of rifles when a muzzle device is removed.

Product Specifications

• The manufacturer is Yankee Hill Machine.
• The model is listed as .625X24.
• The manufacturer part number is YHM-3414-B.
• The product type is Thread Protector.
• The threads are 5/8-24.
• The intended caliber is 0.308 Caliber.
• The outer diameter is .920 OD.
• The finish is Matte.
• The color is Black.
• The material is Steel.
• The listed weight is .125.
• The model designation shown in product listings is YHM-3414-B.
• The item is intended to protect barrel threads when no muzzle device is installed, listed as Thread Protector.
• The UPC is 816701013955.

Compact and straightforward, the YHM-3414-B gives shooters a durable way to protect exposed barrel threads without adding unnecessary bulk. Its steel construction and matte finish make it a practical choice for those who rotate muzzle devices or store rifles for extended periods and want reliable, low-profile protection.