The YHM HUB Direct Thread Mount, 5/8×24 is a direct-thread adapter from Yankee Hill Machine (brand part no. YHM-2189-24) that lets a HUB-compatible suppressor thread straight onto a barrel cut to 5/8×24. Rather than a booster or quick-detach interface, the suppressor attaches to the barrel itself, which suits shooters who want a simple, fixed mount. The mount is machined from 17-4 PH stainless steel. To install it, remove the existing mount mechanism from the suppressor, thread this mount on with a 3/4-inch open-end wrench, then thread the suppressor onto your barrel. Choose it when your barrel is cut 5/8×24 and your suppressor uses the HUB thread.

Key Specifications

• The barrel-side thread is 5/8×24, so this is the mount to order when your barrel carries exactly that thread.
• The suppressor-side thread is the 1.375×24 HUB pattern, the same interface HUB-compatible suppressors use.
• It converts a HUB-compatible suppressor to a direct-thread mounting system with no quick-detach interface in between.
• It is machined from 17-4 PH stainless steel, a heat-treatable grade chosen for strength and corrosion resistance.
• The outer diameter is 1.5625 inches, the footprint to plan around when you fit the mount to a HUB suppressor.
• The length is 0.3 inch, so the mount adds very little to the setup.
• The weight is 1.7 ounces.
• Installation needs a 3/4-inch open-end wrench, with no special tooling required.
• It is made in the USA by Yankee Hill Machine.

Frequently Asked Questions

Which barrel thread does this HUB mount fit? This version is cut for a 5/8×24 barrel thread. Yankee Hill Machine offers the same HUB Direct Thread Mount in other thread sizes, so match the thread on your barrel before ordering.

What suppressors does it convert? It converts HUB-compatible suppressors, meaning those that use the 1.375×24 HUB thread, to a direct-thread mounting system.

How do I install it? Remove the existing mount mechanism from the suppressor, thread on the HUB Direct Thread Mount using a 3/4-inch open-end wrench, then thread the suppressor onto your barrel.

Buy the YHM HUB Direct Thread Mount, 5/8×24

A direct-thread mount keeps the setup simple, and getting the thread size right is the whole job. This 5/8×24 version is for barrels cut to that thread. Order it from our Class 3 parts and accessories selection at our Lubbock, Texas gun shop for fast, direct shipping.