SKU: DMIJAM10L
MPN: JAM10L
The Diversified Machine 5/8 Steel Left-Hand Jam Nut (JAM10L) is a precision fastening component designed for professional-grade firearms assembly and maintenance. This left-hand threaded nut is essential for secure retention in AR-15 upper receiver builds and gas tube systems, where reliability under recoil and vibration is critical.
Manufactured from hardened steel, the JAM10L features a 5/8-inch left-hand thread that works in conjunction with standard right-hand threaded fasteners to create a reliable locking mechanism. This design helps distribute clamping force evenly, reducing stress on bolts and extending the lifespan of components under cyclic loading.
This component is particularly beneficial for AR-platform builders and certified gunsmiths engaged in upper receiver assembly, rail installation, or compensator mounting. The left-hand threading is crucial for preventing loosening due to vibration, making it a standard practice in military and law enforcement applications.
WARNING ⚠️ You must be 18 or older to purchase shotgun or rifle ammunition and 21 or older to purchase handgun ammunition and firearms. Please reference our requirements for ammunition orders to "restricted" states HERE. Always make sure you use the correct ammunition for your firearms. Ammo cannot be shipped to a PO Box. Please reference state & local laws before making a firearm or ammunition purchase.
