What Should Be Used To Screw On Broadheads: Complete Guide

What Should Be Used to Screw On Broadheads? A Deep Dive Into the Right Tools, Screws, and Techniques

Ever tried to screw a broadhead onto a bolt and ended up with a crooked head that looks like it was assembled by a blind squirrel? Most hunters stumble over the same question: *What should be used to screw on broadheads?You’re not alone. * The answer is trickier than you think, and getting it right can mean the difference between a clean kill and a frustrating hunt.

What Is a Broadhead?

A broadhead is the “blade” on a hunting arrow that actually does the cutting. Think of it as the knife of the arrow family—sharp, precise, and deadly. Now, fixed blades stay rigid; mechanicals open and close like a pair of clams. They come in two main flavors: fixed‑blade and mechanical. Either way, you need to attach them securely to the arrow shaft, and that’s where the screw comes in.

Broadheads are usually made from high‑strength steel or titanium and are designed to pierce flesh cleanly. The screws that hold them in place are tiny, but they’re the unsung heroes of a successful shot. If you use the wrong screw or install it wrong, you risk the head spinning, wobbling, or even falling off mid‑flight.

Why It Matters / Why People Care

You might think, “A screw is a screw. Why does it matter?” Because the world of competitive hunting and long‑range shooting has taught us that small details can have big consequences.

• Accuracy: A mis‑screwed head throws the arrow’s center of gravity off, leading to drift.
• Safety: A loose head could detach in flight, potentially harming your target or anyone nearby.
• Durability: Using the wrong screw can strip the threads, shortening the life of both the arrow and the broadhead.
• Legal compliance: Some jurisdictions require specific bolt‑head combinations to qualify as legal hunting equipment.

So, the right screw isn’t just a technicality; it’s a cornerstone of ethical, effective hunting.

How It Works (or How to Do It)

### The Anatomy of a Broadhead Screw

1. Material
   Most broadhead screws are made from chrome‑vanadium steel or titanium. Chrome‑vanadium is common because it offers a good balance of strength, corrosion resistance, and affordability. Titanium screws are lighter and stronger, but they’re pricier.

2. Thread Pitch
   Thread pitch is measured in threads per inch (TPI). Common pitches for broadheads are 0.5 TPI or 0.75 TPI. The pitch must match the arrow’s shaft thread to avoid cross‑threading.

3. Length
   The screw length is critical. Too short, and the head won’t stay in place; too long, and it can interfere with the arrow’s flight or even damage the shaft. Most manufacturers provide a recommended screw length for each head model.

4. Head Design
   Many screws have a self‑drilling or self‑tap feature, meaning they can cut their own threads into the shaft. Others rely on pre‑threaded shafts and require a separate drill.

### Matching the Screw to the Arrow

1. Check the Arrow’s Thread Pitch
   Inspect the shaft near the tip. If you’re unsure, use a thread gauge or consult the manufacturer’s specs.

2. Match the Screw Pitch
   Once you know the arrow’s pitch, pick a screw that matches. A mismatched screw is like trying to fit a square peg into a round hole—frustrating and ineffective.

3. Confirm the Length
   Measure the distance from the screw’s head to the point where the broadhead sits. The screw should snugly fit without protruding.

### Installing the Screw

1. Pre‑Drill (If Needed)
   If your arrow shaft isn’t pre‑threaded, use a drill bit that matches the screw’s core diameter. Drill a clean, straight hole to avoid misalignment.

2. Use a Screwdriver or Socket
   A small, precision screwdriver or a 1/8‑inch socket works best. The key is a firm grip—no wobble.

3. Hand Tighten First
   Insert the screw and hand‑tighten until it’s snug. This prevents cross‑threading.

4. Finish with a Screwdriver
   Spin the screw a few turns with the screwdriver. Don’t over‑tighten—over‑tightening can strip the threads or crack the shaft.

5. Check for Alignment
   After installation, tap the arrow gently on a flat surface. It should travel straight, indicating the broadhead is centered.

Common Mistakes / What Most People Get Wrong

1. Using the Wrong Thread Pitch
   The most common hiccup is mismatched threads. A screw that’s too coarse or too fine will never seat properly.

2. Skipping the Pre‑Drill
   Some arrows are pre‑threaded, but many aren’t. Skipping the drill can lead to a loose fit or a damaged shaft.

3. Over‑Tightening
   It feels satisfying to “secure” the head, but too much torque can strip threads or crack the shaft—especially with titanium screws.

4. Using Cheap, Low‑Quality Screws
   Cheap screws often lack proper heat treatment, making them brittle. Stick with reputable brands or the manufacturer’s recommended screws.

5. Ignoring the Screw’s Head Design
   Some screws have a self‑tap feature; others don’t. Using a non‑self‑tap screw on a pre‑threaded shaft can cause cross‑threading.

Practical Tips / What Actually Works

• Always Use Manufacturer‑Recommended Screws
  The simplest rule: the broadhead’s packaging usually lists the exact screw type and length.

• Keep a Thread Gauge Handy
  A small, inexpensive gauge can save you from a bad purchase and help you double‑check your arrows.

• Use a Torque Wrench
  For serious hunters, a small torque wrench ensures you’re applying the right amount of force—neither too little nor too much.

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• Inspect After Every Shot
  A quick visual check after each hunt can catch a loose screw before it becomes a problem.

• Store Screws Separately
  Keep your screws in a small container or zip‑lock bag. A stray screw can get lost in the bag of arrows and cause headaches later.

FAQ

Q1: Can I use any screw I find in my toolbox?
A1: No. The screw must match the arrow’s thread pitch, length, and material. Using an off‑spec screw can damage your arrow or compromise your shot.

Q2: What if my arrow shaft isn’t pre‑threaded?
A2: Drill a hole that matches the screw’s core diameter. Use a drill bit that’s slightly smaller than the screw to ensure a tight fit.

Q3: How do I know if my screw is too long or too short?
A3: The screw should sit flush with the broadhead’s base, with no part protruding into the shaft. If it’s too long, trim carefully with a fine file; if it’s too short, you’ll need a longer screw.

Q4: Are titanium screws worth the extra cost?
A4: If you shoot heavy‑bore arrows or need a lighter setup, titanium screws are a solid investment. They’re lighter and stronger than chrome‑vanadium but come at a premium.

Q5: Can I reuse screws after a few hunts?
A5: Yes, as long as they’re not damaged or stripped. Inspect them for wear and replace if necessary.

Closing Paragraph

Screwing on a broadhead isn’t a trivial task, but it’s also not rocket science. With the right screw—matched to your arrow’s thread pitch, length, and material—you’ll get a steady, reliable flight path and a clean, ethical kill. In practice, take a moment to double‑check your screws before you head out. In the end, a well‑assembled arrow is the quiet confidence you carry into the field. Happy hunting!

6. Don’t Forget the Screw’s Thread Direction

Most broadheads use right‑handed threads (the same direction you turn a standard screwdriver), but a few specialty models—especially some European‑style broadheads—use left‑handed threads to prevent the screw from loosening under extreme torque. If you try to install a right‑handed screw on a left‑handed thread you’ll either strip the threads or end up with a loose broadhead that can wobble in flight.

How to verify:

1. Look at the packaging or the manufacturer’s website for a “RH” (right‑hand) or “LH” (left‑hand) designation.
2. If the information isn’t obvious, gently turn the screw clockwise; if it resists, try counter‑clockwise. The direction that tightens the screw is the correct one.

7. Avoid Over‑Tightening—A Common Myth

Many archers think that a “tight as a drum” screw guarantees a secure attachment. In reality, over‑tightening compresses the shaft material around the screw head, creating micro‑cracks that can propagate after a few impacts. This is especially true for carbon shafts, which are more brittle than aluminum or wood.

Best practice:

• Use a torque wrench set to the manufacturer’s recommended value (usually between 1.5–2.5 in‑lb for most broadheads).
• If you don’t have a torque wrench, tighten the screw until you feel a slight resistance, then give it a gentle “wiggle” with a screwdriver. It should feel firm but not immobile.

8. Mind the Screw Head Shape

Broadheads come with different screw‑head designs—flat‑head, pan‑head, and countersunk (also called “countersunk head” or “low‑profile”). The head shape determines how the screw sits against the broadhead base and the shaft:

Choosing the wrong head can cause the screw to sit at an angle, leading to uneven stress on the shaft and a wobble in flight. Always match the head style to the broadhead’s design—most broadheads specify the compatible head type on the packaging.

9. Temperature and Corrosion Considerations

If you hunt in humid, salty, or high‑altitude environments, corrosion can become a silent enemy. Even stainless‑steel screws can develop pitting over time, especially when exposed to sweat, rain, or river water. A corroded screw not only looks unsightly; it can seize in the shaft, making future removal a nightmare.

Preventive steps:

• Apply a light coat of anti‑corrosion grease (e.g., a silicone‑based lubricant) to the screw threads before installation.
• Store arrows in a dry, temperature‑controlled case rather than a damp garage or trunk.
• Inspect for corrosion after each hunt and replace any screw that shows white‑rust or pitting.

10. The “One‑Size‑Fits‑All” Fallacy

Some retailers market “universal” broadhead screws that claim to work on any shaft and any broadhead. Consider this: while these may fit physically, they rarely meet the precise tolerances required for optimal performance. Universal screws often have a generic thread pitch (commonly 1.Even so, 0 mm) and a length that’s a compromise—too short for some shafts, too long for others. The result is a higher likelihood of loosening, misalignment, or shaft damage.

Bottom line: Treat a “universal” screw as a temporary fix, not a long‑term solution. When you’re ready to hunt seriously, invest in the exact screw pair specified by your broadhead and shaft manufacturers.

Quick‑Reference Checklist (Paste This on Your Bow‑Case)

• [ ] Verify thread pitch (most common: 1.0 mm, 1.25 mm, 1.5 mm)
• [ ] Confirm screw length (flush with broadhead base, no shaft protrusion)
• [ ] Match material to shaft (titanium for carbon, steel for aluminum/wood)
• [ ] Check head design (flat, pan, or countersunk)
• [ ] Ensure correct thread direction (RH vs. LH)
• [ ] Tighten to recommended torque (use a torque wrench)
• [ ] Apply anti‑corrosion grease if hunting in wet/salty conditions
• [ ] Perform a post‑shot visual inspection after each outing

Final Thoughts

Choosing the right broadhead screw is a blend of science and habit. Because of that, the specifications—thread pitch, length, material, head shape, and direction—are the scientific side; the habit of double‑checking, using a torque wrench, and inspecting after each hunt is what turns a good archer into a reliable one. By treating the screw as an integral part of your arrow rather than an afterthought, you’ll enjoy smoother flight, tighter groupings, and, most importantly, a clean, humane kill.

So the next time you’re loading up for a day in the field, take a moment to run through the checklist, tighten that screw just right, and head out with confidence that your equipment is as prepared as you are. Happy hunting, and may every shot find its mark.