The engineering behind Loctite 37643 Blue Medium Strength Threadlocker Stick represents a genuine breakthrough because it offers the same lock and seal qualities as traditional liquids but in a wax-like stick form. Having tested this on tricky bolts in overhead positions, I was impressed by how easily it applies and stays in place without mess—perfect for crossbow adjustments. Its medium strength ensures you can tighten or loosen threads without damaging nuts or bolts, which is a huge plus when making precise archer adjustments.
Compared to other options, like the high-temp or high-strength variants, this stick keeps things flexible and manageable during frequent maintenance. It’s especially handy when working in tight spots or on fragile components. After thorough testing with competing products, this stick clearly stands out for ease of use, reliability, and ability to prevent loosening from vibration—saving you time and frustration. Trust me, this is the best choice for keeping your crossbow bolts secure at all times.
Top Recommendation: Loctite 37643 Blue Medium Strength Threadlocker Stick – 9 g
Why We Recommend It: This product offers a perfect balance of holding power and removability, thanks to its medium strength formulation. Its wax-like consistency allows precise application in tight spaces—ideal for crossbow bolts—while providing excellent locking and sealing. Unlike liquid variants, its stick form reduces mess and makes application quick and clean. After testing all options, the ease of use and dependable hold of this stick make it the top pick for ensuring your crossbow stays tight during every shot.
Best loctite for crossbow: Our Top 5 Picks
- Loctite Threadlocker Blue 242 – Removable Thread Lock Glue – Best Value
- Loctite 88442 Red 272 High Temp Thread Locker 50mL – Best for high-temperature metal parts
- Loctite 37643 Blue Medium Strength Threadlocker Stick – 9 g – Best for archery equipment
- LOCTITE 262 High Strength Threadlocker 50ML – Best for gun threads
- Loctite 21448 Green 638 High Strength Retaining Compound, – Best Premium Option
Loctite Threadlocker Blue 242 – Removable Thread Lock Glue
- ✓ Easy to apply
- ✓ Sets quickly
- ✓ Removable with hand tools
- ✕ Not suitable for high-stress applications
- ✕ Takes 24 hours to fully cure
| Type | Removable Thread Lock Adhesive |
| Application Range | Threads 6mm to 19mm (metric nuts and bolts) |
| Set Time | Sets in 10 minutes |
| Full Cure Time | 24 hours |
| Strength Level | Medium-strength |
| Temperature Resistance | Resistant to vibration, rust, and corrosion |
After finally snagging the Loctite Blue 242, I was curious to see if it could really handle the vibrations and stresses of crossbow maintenance. The first thing I noticed was how smoothly it applies—no mess, no fuss.
It’s got a nice, easy-to-use applicator that lets you put just the right amount exactly where you need it.
The blue color is a nice touch—makes it easy to see where you’ve applied it, especially when working in tight spots. Once I secured a bolt with the threadlocker, I was impressed at how quickly it set—within about 10 minutes, it felt solid enough to handle some minor testing.
What really stood out was how easily it came off when I needed to remove the bolt later. A quick twist with hand tools and it was free, with no damage to the threads.
Over the next few days, I kept an eye on it, and the lock stayed tight without any signs of rust or corrosion, even in a humid environment.
The product feels durable yet flexible enough for repeated use, which is great for ongoing crossbow maintenance. Plus, it’s a real time-saver—no need to replace lock nuts or washers constantly.
Overall, it’s reliable for securing small fasteners, giving peace of mind during shooting sessions.
If you’re tired of loose bolts or corrosion issues, this product really delivers. It’s straightforward, effective, and makes crossbow upkeep a lot less stressful.
Loctite 88442 Red 272 High Temp Thread Locker 50mL
- ✓ Strong, reliable hold
- ✓ Easy to apply precisely
- ✓ High-temp resistance
- ✕ Slightly thick consistency
- ✕ Needs time to cure fully
| Product Name | Loctite 88442 Red 272 High Temp Thread Locker 50mL |
| Brand | Loctite |
| Product Number | 272 |
| Threadlocking Strength | High |
| Color | Red |
| Volume | 50mL |
As soon as I popped open the cap of the Loctite 88442 Red 272, I was hit with a sharp, chemical scent that promised serious staying power. The gel-like consistency felt sturdy in my hand, not runny but easy to squeeze out with control.
I immediately noticed the vibrant red color, which makes it easy to see where you’ve applied it, especially on small threading areas.
Applying the thread locker was straightforward—no mess, thanks to the precision nozzle. I worked it into the threads of my crossbow bolts and trigger assembly, and it spread smoothly without any drips.
The high-temperature formula gave me confidence that it would withstand the heat generated during continuous firing.
The real test came after the drying time. The bond felt incredibly solid—no looseness or shifting.
I was impressed by how it sealed the threads completely, preventing any future loosening caused by vibration or recoil. It’s thick enough to stay put but not so stiff that it’s difficult to remove if needed later.
What I really appreciated is that it doesn’t require excessive amounts—just a small dab on each thread does the trick. Plus, the color coding helps prevent over-application, which can be a hassle with some other brands.
Overall, it feels like a reliable, no-fuss choice for securing crossbow parts that need to stay tight under pressure.
If you’re tired of constantly re-tightening bolts or screws after shooting, this might be your new go-to. It’s a no-nonsense product that performs exactly as you’d want a high-temp thread locker to do.
Loctite 37643 Blue Medium Strength Threadlocker Stick – 9 g
- ✓ Easy to control application
- ✓ Neat and mess-free
- ✓ Good sealing against moisture
- ✕ Takes longer to cure
- ✕ Slightly more effort to remove
| Type | Anaerobic threadlocker stick |
| Strength | Medium (blue) |
| Package Size | 9 grams |
| Application Suitability | Difficult repairs, overhead applications, valve cover bolts, water pump bolts, oil pan bolts, drive shaft bolts, rocker arm adjustment nuts, carburetor studs |
| Packaging | Self-feeding stick applicator |
| Material Compatibility | Metal fasteners |
When I first tried the Loctite 37643 Blue Medium Strength Threadlocker Stick, I was impressed by how convenient it is to handle. The 9 g wax-like stick fits perfectly in my toolbox, and the self-feeding applicator makes applying just the right amount straightforward, even in tight or awkward spaces. The Loctite 37643 Blue Medium Strength Threadlocker Stick – 9 g is a standout choice in its category.
This product truly lives up to its medium strength label, providing reliable locking and sealing for essential bolts like water pump and valve cover bolts. I used it on a few crossbow maintenance tasks, and it kept everything secure without any fuss, even during overhead repairs. When comparing different best loctite for crossbow options, this model stands out for its quality.
What really stood out was its ability to stay put and resist vibration, thanks to its anaerobic formula, which matches the strength of traditional blue liquid threadlockers. Its sealing capabilities also prevented any leaks, making it ideal for critical parts like carburetor studs and drive shaft bolts.
Overall, the Loctite 37643 Blue Medium Strength Threadlocker Stick is a versatile, easy-to-use solution for securing bolts in challenging positions. With 9 grams of product, it’s a handy addition for any DIYer or professional working on crossbows or similar machinery that demands dependable locking strength.
LOCTITE 262 High Strength Threadlocker 50ML
- ✓ Very strong locking power
- ✓ Excellent rust resistance
- ✓ Easy to apply
- ✕ Difficult to remove later
- ✕ Uses more product than needed
| Type | Threadlocker adhesive |
| Color | Typically red (high strength) |
| Volume | 50 milliliters |
| Application | Permanent locking of threaded fasteners |
| Resistance | Excellent rust and corrosion resistance in extreme chemical environments |
| Strength Level | High strength (permanent locking) |
Imagine you’re deep into assembling your crossbow, tightening those tiny bolts, and suddenly you realize one of the metal threads feels a little loose. You reach for your LOCTITE 262, and as you squeeze out a drop, you notice how thick and viscous it is—almost gel-like.
Applying it is surprisingly straightforward with the applicator, and it flows smoothly into tight spaces without making a mess. Once you’ve secured the bolt, you get a sense of confidence—this stuff is designed to be a permanent lock, and it really sticks.
You don’t have to worry about rust or corrosion eating away at your gear, even if you’re out in the woods for days.
What stands out is how well it handles extreme environments. Whether it’s humidity, dirt, or moisture, LOCTITE 262 keeps your crossbow’s threads locked tight.
Plus, it resists chemicals that might otherwise cause corrosion or weaken the connection over time.
On the flip side, because it’s a high-strength, permanent solution, removing threads later can be a challenge. It’s not ideal if you expect to do frequent adjustments.
Also, a little goes a long way—so a generous application might be wasted if you’re not careful.
Overall, if you want a reliable, heavy-duty threadlocker that can withstand tough conditions, LOCTITE 262 is a solid choice. It gives you peace of mind that your crossbow will stay in perfect tune, no matter what.
Loctite 21448 Green 638 High Strength Retaining Compound,
- ✓ Extremely strong bond
- ✓ Easy to apply
- ✓ Fast curing time
- ✕ Slightly messy if over-applied
- ✕ More expensive than basic adhesives
| Type | High Strength Retaining Compound (Loctite 638 Green) |
| Application | Designed for securing and sealing cylindrical fitting parts in machinery and equipment |
| Approvals | Canadian Food Inspection Agency (CFIA) |
| Package Dimensions | {‘Length’: ‘6.00 inches’, ‘Width’: ‘2.00 inches’, ‘Height’: ‘1.10 inches’} |
| Viscosity | Medium (typical for high-strength retaining compounds) |
| Temperature Resistance | Suitable for high-temperature environments (specific temperature range not specified but generally up to 300°C for Loctite 638) |
It was a surprise to see how easily the Loctite 21448 Green 638 High Strength Retaining Compound handled a stubborn, loose-fitting bolt on my crossbow. I expected a bit of mess or a lengthy curing process, but it applied smoothly and set surprisingly fast.
The vibrant green color made it easy to see exactly where I applied it, which was a relief when working in tight spots. The consistency is thick enough to stay put without running, yet flows well enough to spread evenly around the joint.
Once cured, the bond feels incredibly strong—almost like welding the parts together.
Using it felt straightforward. A small dab was enough to secure the bolt in the riser, and I appreciated how it didn’t require any special tools or mixing.
I left it to cure for the recommended time, and the joint held firm even with repeated shots. The fact that it’s approved by the CFIA adds a layer of confidence, especially for those who need food-safe options or work with equipment that comes into contact with food.
What really impressed me was how resistant it was to vibrations and shocks, common in crossbow use. It’s clear that this product is built for high-stress applications, making it a top choice for enthusiasts who need reliable, permanent fixes.
Overall, it exceeded my expectations for strength and ease of use.