What Fastach Clips Do and Why Anglers Use Them
Fastach clips are small mechanical connectors that let you swap lures, leaders, or terminal tackle without retying knots. You clip your line to the clip, then clip your lure or leader to the other end. The appeal is speed: you can change rigs in seconds instead of spending five minutes at the vise retying. They work on spinning rigs, baitcasting setups, and trolling lines.
The practical value depends on your fishing. If you are casting the same lure all day, a clip adds nothing. If you are testing different presentations, switching between topwater and deep divers, or rotating lures to find what the fish want, a clip saves time and keeps you fishing instead of fiddling with knots. They also reduce the wear on your main line from repeated knot-tying.
Fastach clips come in different sizes and breaking strengths. A clip rated for 20 pounds will hold a 20-pound lure or leader, but the connection itself is the weak point—the clip will fail before the line does. This matters when you are targeting large fish or using heavy tackle.
Key Takeaways
- Fastach clips let you swap lures without retying, which saves time when you are testing different presentations or switching depths.
- The clip itself is the weak link in your line, so match the clip's breaking strength to your target species and line weight.
- Clips work best for casting and trolling; they add unnecessary bulk on light spinning rigs where knots are already fast.
- Snap-and-clip connections can spook fish in clear water or when using light leaders, so consider a direct knot for finicky situations.
- Stainless steel and quality brass clips last longer than cheap zinc-plated versions, especially in saltwater.
Fastach Clip Sizes and Breaking Strengths
Fastach clips are sized by the line weight they hold. Common sizes run from #0 (for ultralight spinning, 4–6 pound line) up to #5 and beyond (for heavy saltwater and pike). A #2 clip typically holds 12–15 pounds; a #3 holds 20–30 pounds. The manufacturer's rating is the breaking strength of the clip itself, not a recommendation for the line you should use.
Match the clip size to the heaviest lure or leader you plan to use, not to your main line. If you are casting 1-ounce lures on 15-pound braid, a #3 clip is appropriate because the lure weight is the load. If you are trolling with a 3-ounce plug on 30-pound mono, you need a #4 or #5 clip. Undersizing the clip means it will fail when you set the hook or when a large fish runs.
In saltwater, stainless steel clips outlast brass or zinc-plated versions by years. Freshwater anglers can use brass or quality zinc, but stainless is worth the small extra cost if you fish regularly. Cheap clips with rough edges or loose hinges will bend or snap under load and can also damage your line.
How to Attach a Fastach Clip to Your Line
The standard method is a clinch knot or improved clinch knot tied directly to the clip's eye. Thread your line through the eye, wrap it around the main line five to seven times, thread the end back through the first loop near the eye, then through the larger loop. Tighten slowly and trim the tag end. This knot holds reliably and is faster than tying to a lure.
Some anglers use a Palomar knot instead, which is even stronger and takes the same time. Thread the line through the eye, tie an overhand knot without tightening, pass the loop over the clip, then tighten. Both methods work; choose whichever you tie fastest under low light.
After tying, clip your lure or leader to the other end of the clip. Make sure the clip closes fully and the lure hangs freely without binding. A clip that does not close completely will slip open under load. Test the connection by hand before casting—a quick tug should show no movement between clip and lure.
When Fastach Clips Help and When They Hurt
Clips shine when you are actively changing lures. Bass tournaments, pike fishing with multiple presentations, and saltwater sight-casting all benefit from the speed. You can test a crankbait, switch to a jig, then go back to the crankbait in under a minute. On a day when the fish want a specific color or action, a clip lets you dial in faster than anglers retying knots.
Clips are a liability in clear water or when fish are leader-shy. The clip and its connection create a visible joint that can spook trout, permit, or other fish that inspect lures closely. In these situations, a direct knot from line to lure is more natural and often more effective. Similarly, on light spinning rigs for panfish or small trout, the clip adds bulk and weight that a simple knot avoids.
Trolling and deep jigging benefit from clips because you are not casting repeatedly and the clip's strength matters more than its appearance. Trolling for walleye or stripers, or vertical jigging for lake trout, are ideal clip applications. The speed of changing depths or lure sizes outweighs any visibility concern.
Fastach Clips Versus Other Snap Designs
Fastach clips are one of several snap styles. A ball-bearing snap uses a spring-loaded ball to hold the lure; it is smooth and fast but can fail if the ball gets stuck. A cross-lock snap has a sliding lock that secures the lure; it is very strong but slower to use. A barrel snap is simple and light but can bend under heavy load.
Fastach clips sit in the middle: faster than a cross-lock, stronger than a ball-bearing snap, and more reliable than a barrel snap. They are the default choice for most freshwater and saltwater fishing. If you need maximum speed and fish are not leader-shy, a ball-bearing snap is slightly faster. If you need maximum strength and do not mind the extra second to clip and unclip, a cross-lock snap is the choice.
Many anglers skip snaps and clips entirely and tie a loop knot (surgeon's loop or Bimini twist) to the lure eye, then use a loop-to-loop connection to a leader. This method is strong, invisible, and fast once you practice it. The trade-off is that it takes longer to learn and requires tying two knots instead of one.
Maintenance and Replacement
Fastach clips wear out. The hinge can become loose, the spring can weaken, or the clip can bend slightly so it no longer closes fully. In freshwater, a clip usually lasts a full season of regular use. In saltwater, stainless steel clips last longer, but even they should be rinsed and inspected monthly. A clip that is hard to open or does not close smoothly should be replaced.
Keep a few spare clips in your tackle box in the sizes you use most. They cost a dollar or two each and take seconds to swap out. A failed clip mid-fight is frustrating; a spare clip in your pocket is insurance. When you replace a clip, cut off the old one and retie the knot rather than trying to reuse the knot.
Saltwater anglers should rinse clips with fresh water after each trip and dry them completely. Stainless steel resists corrosion, but salt deposits can still build up and make the hinge stiff. A quick rinse extends the life by months.
Frequently Asked Questions
Will a Fastach clip spook fish?
In clear water or when fish are examining lures closely, yes—the clip and its connection are visible and can trigger refusal. In stained water, deeper water, or when fish are aggressive, the clip makes no difference. If you are not catching fish and visibility is good, try removing the clip and tying directly to the lure.
What size clip do I need for my setup?
Match the clip size to the heaviest lure or leader you will use, not to your line weight. A #2 clip works for lures up to about 1 ounce; a #3 for lures up to 2 ounces; a #4 for lures up to 3 ounces. Check the manufacturer's rating on the package to be sure.
Can I use a Fastach clip with braided line?
Yes, but braid is slippery and can slip through a poorly tied knot. Use an improved clinch knot or Palomar knot and make sure the knot is tight before you start fishing. Some anglers add a small drop of thread-locking compound to the knot for extra security, though this makes the clip permanent until you cut it off.
How do I know when to replace a clip?
Replace a clip if the hinge is loose, if it does not close fully, if it is hard to open, or if you see rust or corrosion. A clip that works smoothly and closes tight is fine to keep using. When in doubt, swap it out—a new clip costs less than losing a fish.
Is a loop-to-loop connection stronger than a Fastach clip?
A properly tied loop-to-loop connection is stronger than most clips because there is no mechanical weak point. The trade-off is that it takes longer to tie and change, so it is better for situations where you are not swapping lures often. For active lure-testing, a clip is faster.