Yankee Hill Machine Co YHM SRX THREAD PROTECTOR BLK
$24.75
Safeguard the threads on your YHM sRx mounts with this protective cap when your suppressor is not attached. Made from rugged 4140 chrome moly steel with a black oxide finish.
2 in stock
The Yankee Hill Machine Co YHM sRx Thread Protector safeguards the threads on YHM sRx mounts when a suppressor is not attached. It is compatible with sRx muzzle devices.
This thread protector is made from 4140 chrome moly steel and has a black oxide finish.
- Manufacturer: Yankee Hill Machine Co
- Part Number: YHM-4450
- Thread: 1 3/8-24
- Material: 4140 chrome moly steel
- Finish: Black oxide
- UPC: 841812101987
| Weight | 0.053 lbs |
|---|---|
| Dimensions | 5.500 × 3.250 × 1.300 in |
| Manufacturer | Yankee Hill Machine |
| Finish | black oxide |
| Weight | 0.448 Oz |
| Material | 4140 chrome moly steel |
| Dimensions | .5625″ |
| Compatible With | YHM sRx System & any suppressor with 1 3/8″ thread |
PROCESSING & SHIPPING
Orders typically ship within 1–3 business days (Monday–Friday) after payment and all required documentation are received. Time to arrival after shipment depends on the carrier. Shipping method is at BT Gun Company’s discretion; ammunition and oversized accessories are charged at actual shipping cost. We do not ship to Hawaii or Alaska.
FIREARM TRANSFERS
- Firearms must ship to a licensed FFL dealer of your choosing — confirm with them first that they can accept the transfer.
- Your receiving FFL will need to email their license to [email protected] before we can ship.
- Inspect your firearm at your FFL’s location before signing ATF Form 4473 — once signed, the firearm is considered accepted.
You’re responsible for knowing the firearms laws in your state before ordering. For complete shipping, returns, and restocking-fee policy details, see our Shipping & Returns page.

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