
Billfisher Stainless Coastlock Snap Swivels
Billfisher coastlock snap swivels give you a secure, quick-change connection between your leader and lure. Built from heavy-duty stainless steel with a black oxide finish, these swivels resist saltwater corrosion trip after trip. Sold individually in sizes from 40lb to 400lb test, so you buy only what you need.
- Heavy duty stainless steel construction
- Black oxide finish resists saltwater corrosion
- 5 sizes from 40lb to 400lb test
- Sold individually for flexible purchasing
- Coastlock snap design locks securely under load
Why Coastlock Snaps Belong in Your Tackle Box
A coastlock snap swivel lets you change lures and rigs in seconds without retying knots. That matters when fish are hitting and you need to match what is working right now. The locking mechanism on these Billfisher snaps stays shut under load, so you are not losing fish to an open snap.
Stainless steel with a black oxide coating means these hold up in saltwater without corroding or weakening. At under a dollar each, you can stock every size and keep spares rigged and ready. They work for everything from inshore popping cork rigs to offshore bottom setups.
Stainless steel with a black oxide coating means these hold up in saltwater without corroding or weakening. At under a dollar each, you can stock every size and keep spares rigged and ready. They work for everything from inshore popping cork rigs to offshore bottom setups.
Coastlock Locking Mechanism
The coastlock design uses a wire gate that locks firmly under tension. It will not pop open during a hard fight. Opening and closing is still quick and easy by hand, so lure changes take seconds.
Black Oxide Stainless Steel
These swivels start with stainless steel for strength, then add a black oxide finish for extra corrosion protection. The dark finish also reduces flash, which helps when fish are line-shy.
5 Sizes from 40lb to 400lb
Cover light inshore rigs with the 40lb size all the way up to heavy offshore leaders with the 400lb. Sold individually, so you can grab 2 or 200 depending on what you need. No wasted bulk packs of sizes you do not use.
How to Use Coastlock Snap Swivels
1. Choose the right size snap swivel for your target species and leader strength
2. Tie your main line or leader to the swivel eye using a Palomar or improved clinch knot
3. Open the coastlock snap by pushing the wire gate to the side
4. Slide the snap through your lure's split ring or leader loop
5. Close the snap firmly until the wire gate locks into the notch
6. Tug test the connection before deploying your rig
Specs & Common Questions
Everything you need to know before you buy
Full Specifications +
| Brand | Billfisher |
| Material | Stainless Steel |
| Finish | Black Oxide |
| Type | Coastlock Snap Swivel |
| Size Range | 40lb to 400lb Test |
| Sold As | Individual |
| Corrosion Resistance | Saltwater Rated |
| Price Range | $0.46 to $0.99 |
What size coastlock snap swivel do I need? +
Match your snap swivel to your leader or line strength. The 40lb works for light inshore, 75-125lb for general purpose, and 240-400lb for offshore. Our snap swivel size chart has detailed recommendations.
Are these snap swivels sold in packs? +
No, Billfisher coastlock snap swivels are sold individually. This lets you buy exactly the quantity you need without paying for a bulk pack. Check out our Epic crane swivels with tournament snap if you prefer multi-packs.
What is a coastlock snap? +
A coastlock snap uses a wire gate that locks into a notch, creating a secure closure that will not open under tension. It is one of the most popular snap designs for saltwater fishing. Learn more in our fishing swivels guide.
Can I use these for trolling? +
Yes, but for high-speed trolling, a ball bearing swivel reduces line twist better. These coastlock snaps work well for slow trolling and general rigging. See our AFW ball bearing swivels for trolling applications.
Will these corrode in saltwater? +
The stainless steel body and black oxide finish provide strong corrosion resistance. Rinse them with fresh water after each trip for maximum life. Our saltwater gear essentials guide covers tackle maintenance basics.
What is the difference between a coastlock snap and a tournament snap? +
A coastlock uses a wire gate that slides into a notch. A tournament snap has a more streamlined bullet shape for less water resistance at speed. Compare both in our snap swivel guide.