Aluminium Arrow Insert for Duralumin Shafts – Screw-In Thread 2018 / 2219 - Outlet

Aluminium Arrow Insert for Duralumin Shafts – Screw-In Thread 2018 / 2219

Technical Specifications and Variants

This insert is specifically designed for aluminium (duralumin) shafts. Choosing the correct size depends on the internal diameter of your arrow. The table below provides the exact fit for common arrow lengths converted to metric measurements for your convenience.

Installation and Practical Use

Installing the insert is straightforward but requires attention to detail. The insert is glued into the pre-cleaned and degreased interior of the duralumin tube. We recommend using specialized archery cyanoacrylate (super glue) or two-part epoxy for maximum durability. The internal thread is universal, so once the glue has cured, you can swap tips in seconds depending on whether you are hitting 3D targets or practicing on a straw butt.

Note the machined grooves on the surface. These are not just for aesthetics; they ensure an even distribution of glue around the entire circumference. This eliminates air pockets and increases the bonding surface area, which is vital for high-performance modern crossbows.

Fun Fact from Archery History

Did you know that before the invention of screw-in inserts, archers had to permanently glue their points or even forge them directly onto wooden shafts? The introduction of standardized inserts in the mid-20th century was a game-changer. It allowed shooters to fine-tune their Front of Center (FOC) balance simply by swapping a tip for a heavier or lighter one without destroying the arrow itself.

Maintenance and Care

• Always degrease the inner shaft wall and the insert surface with rubbing alcohol before gluing.
• Periodically check that the threads are free of debris or old glue residue.
• Apply a tiny amount of bowstring wax to the tip threads before screwing them in; this prevents oxidation and stops the tips from rattling loose.
• Never force the insert with a hammer. If it fits too tightly, lightly sand the surface with fine-grit sandpaper.

What to Avoid

Be extremely careful not to get any glue inside the internal threads. Once adhesive hardens inside the thread, the insert is essentially ruined. Avoid shooting into exceptionally hard materials like rock or concrete, as the force of impact can deform the aluminium or cause the insert to be ripped out of the shaft.

Recommended Accessories

To complete your arrow build, we recommend high-quality screw-in Field Points (100 or 125 grains). Don't forget a high-impact archery adhesive. If you are building your own arrows from scratch, a professional arrow saw is a great investment to ensure perfectly square cuts on your duralumin tubes.

Would you like me to recommend a specific high-strength adhesive or help you calculate the ideal point weight for your setup?

Made from Aluminum in twa variants:

• 2018 - for arrow No. 13101 in 14" 
• 2219 - for arrow no 13101 in 16" and 20"  and arrow No. 13137