Are you looking for the perfect through-hole size for your 1/4-20 knobs?
Discover precision-engineered knobs designed for a secure grip, effortless adjustments, and lasting durability—ideal for pros and DIYers alike.
Perfect fit. Secure grip. Smooth adjustments. These 1/4-20 knobs are built for precision and ease. They lock tools firmly in place, yet turn by hand with zero hassle.
Trusted by pros. Loved by DIYers. Every knob blends tough materials with smart design. Whether clamping jigs or tuning machinery, you’ll feel the difference.
List of Top 10 1/4-20 Knob Through Hole Size
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4 Pcs Star Knobs, 1/4-20 Knob Through Hole Hand Tighten Clamping Knobs Plastic Black Threaded Nuts for T Track Bolts, Jig, Mechanical Equipment(1/4”-20) |
These 4 Pcs Star Knobs are perfect for DIY enthusiasts, woodworkers, and anyone who needs to securely fasten parts on jigs, machinery, or T-tracks without tools. They offer a simple, hand-tightened solution for quick adjustments and reliable holding power. |
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MOZEAT LENS 20 Pack 1/4-20 Knob 6 Star Knobs 1/4 Inch 20 Female Threaded Hexagon Head Thru Knob Clamping Knobs Jig Knobs T Track Bolts, Black, 554350_3_VNKWeQdRd |
These MOZEAT LENS 1/4-20 Knob sets are perfect for anyone who needs a secure and easy way to clamp things down. If you’re working on jigs, fences, or fixtures, these handy knobs will make your projects a breeze. |
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10PCS 1/4″ Wing Knobs Through Hole T Knobs Hand Screw Nut T-Plastic Handle Nut,Thumb Screw Threaded Knobs for T Track Accessories, Feather Boards, Woodworking Jigs and Fixtures,1/4-20 Threaded Knob |
This 10-piece set of T-knobs is perfect for woodworkers and DIY enthusiasts who need a secure and tool-free way to adjust their t-track accessories, feather boards, and jigs. |
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WOODRIVER Knob Four Arm with Through Hole 1/4″-20 Insert |
This product is perfect for woodworkers who need durable, precision hardware. Its sturdy design and 1/4″-20tpi thread suit projects requiring reliable, long-lasting shop supplies. |
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Mozeat Lens 30 Pack 1/4-20 Knob 6 Star Knobs 1/4 Inch 20 Threaded Female Hexagon Head Jig Clamping Knobs T Track Bolts Thru Knob, Black |
This product is perfect for DIY enthusiasts, woodworkers, and hobbyists needing a secure grip and quick adjustments. Its 1/4-20 threaded rods and star knobs offer easy clamping for tools like routers, saws, and drill presses. |
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guduling 30-Pack 1/4-20 Star Knob,1/4″-20 Female Threaded Knobs,Star Knobs,Hexagon Head Through Hole Hand Tighten Clamping Knob, with Internal Thread for T-Slot Tracks, Jigs & Fixtures |
This product is perfect for DIYers, woodworkers, and machinists needing durable, tool-free fasteners. Guduling star knobs offer easy adjustments in tight spaces and secure clamping for T-slots, jigs, and CNC setups. |
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Elegaperma 30pcs 1/4-20 Star Knobs,1/4″-20 Female Threaded Star Knobs,Hexagon Head Through Hole Clamping Knob,Black Nylon Screw-On Type Thru Threaded Knob Nuts for T Track Bolts,Machine Tool |
Hobbyists and DIYers love these star knobs for their durable build and snug fit. Perfect for T-tracks, jigs, or machine tools, they offer quick, tool-free adjustments with a star-shaped grip. |
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WOODRIVER Knob Five Star with Through Hole 1/4″-20 Insert |
This WOODRIVER Knob is perfect for woodworking enthusiasts who need a reliable and sturdy knob with a 1/4″-20 thread size. It’s ideal for anyone looking to enhance their woodworking projects with quality hardware from a trusted American brand. |
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10PCS 1/4″ Wing Knobs Through Hole T Knobs T-Plastic Handle Nut Black T Track Clamping Knob 1/4-20 Threaded Knob Hand Screw Nut for Woodworking Jigs and Fixtures Feather Boards Umbrella Base |
This 10-pack of 1/4″ Wing Knobs is perfect for woodworking enthusiasts and DIYers who need easy, tool-free adjustments for their jigs and fixtures. They offer a secure grip and durable performance for all your workshop needs. |
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Bykonh 1/4-20 Knob 6 Star Knobs, Plastic Hand-Tighten Thumb Nuts, Hex Head Knurled Grip Female Thread Through Hole Clamping Screw-On Thru Knobs, Zinc Plated Carbon Steel, Black, 4 PCS |
These star knobs are perfect for DIYers, hobbyists, and pros working on machinery, electronics, or furniture. They offer easy, tool-free installation with a strong grip and durable design for reliable use. |
Detailed Reviews
Find the perfect 1/4-20 knob with our expert-tested, customer-approved picks. These knobs blend tough materials like nylon, brass, and steel for lasting use. Tool-free adjustments and secure grips make them ideal for jigs, T-tracks, and machinery. Whether you need a pack of 4 or 30, these knobs deliver precision and durability for every project.
1. 4 Pcs Star Knobs, 1/4-20 Knob Through Hole Hand Tighten Clamping Knobs Plastic Black Threaded Nuts for T Track Bolts, Jig, Mechanical Equipment(1/4”-20)
Upgrade your tools with these 4 Pcs Star Knobs! They’re perfect for any project. Get a secure grip and easy tightening with their unique design.
These knobs are made from tough nylon and strong steel. They’re built to last and keep your equipment firmly in place.
Simply hand-tighten for a perfect fit. They work with 1/4”-20 rods and many types of equipment.
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Perfect For:
These 4 Pcs Star Knobs are perfect for DIY enthusiasts, woodworkers, and anyone who needs to securely fasten parts on jigs, machinery, or T-tracks without tools. They offer a simple, hand-tightened solution for quick adjustments and reliable holding power.
Ready to Purchase?
2. MOZEAT LENS 20 Pack 1/4-20 Knob 6 Star Knobs 1/4 Inch 20 Female Threaded Hexagon Head Thru Knob Clamping Knobs Jig Knobs T Track Bolts, Black, 554350_3_VNKWeQdRd
These 20-pack 1/4-20 knobs are built with brass inserts molded into durable plastic. They’re made for clamping tasks, with threads designed to grip bolts tightly.
Easy to tighten and loosen by hand. 1/4-inch 20 threading fits standard rods. Bolts pass through for flexible adjustments.
Use them on routing jigs, saw fences, or drill presses. These black hex knobs offer a steady grip and work with many tools.
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Perfect For:
These MOZEAT LENS 1/4-20 Knob sets are perfect for anyone who needs a secure and easy way to clamp things down. If you’re working on jigs, fences, or fixtures, these handy knobs will make your projects a breeze.
Ready to Purchase?
3. 10PCS 1/4″ Wing Knobs Through Hole T Knobs Hand Screw Nut T-Plastic Handle Nut,Thumb Screw Threaded Knobs for T Track Accessories, Feather Boards, Woodworking Jigs and Fixtures,1/4-20 Threaded Knob
This product includes 10 pieces of wing knobs with a 1/4″ threaded hole. They are easy to use with no tools required. These knobs provide a secure grip for easy tightening.
Made of high-quality plastic and brass, they are durable and rust-resistant. The knobs feature a smooth surface and deep threads without burrs. They are built to last.
Perfect for T-track assemblies, woodworking jigs, and feather boards. These knobs offer a simple solution for quick adjustments. They are also great replacements for damaged parts.
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Perfect For:
This 10-piece set of T-knobs is perfect for woodworkers and DIY enthusiasts who need a secure and tool-free way to adjust their t-track accessories, feather boards, and jigs.
Ready to Purchase?
4. WOODRIVER Knob Four Arm with Through Hole 1/4″-20 Insert
Get a firm grip on your projects with the WOODRIVER Knob Four Arm. This knob features a 1/4″-20 thread size for secure attachment.
It’s made from tough phenolic material. The knob is 2 inches in diameter. It stands 1 inch tall.
This quality knob is brought to you by WoodRiver, a trusted name from Woodcraft, your go-to for top-notch woodworking tools and supplies.
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Perfect For:
This product is perfect for woodworkers who need durable, precision hardware. Its sturdy design and 1/4″-20tpi thread suit projects requiring reliable, long-lasting shop supplies.
Ready to Purchase?
5. Mozeat Lens 30 Pack 1/4-20 Knob 6 Star Knobs 1/4 Inch 20 Threaded Female Hexagon Head Jig Clamping Knobs T Track Bolts Thru Knob, Black
Mozeat Lens offers a 30-pack of 1/4-20 knob for your projects. These star knobs are designed for easy use and secure clamping.
They are well made with a brass insert. The female thread size is 1/4 inch. These handy knobs are wide in application.
Use them for jigs, fences, and fixtures. They are perfect for routing, drilling, and lathe work. Get reliable performance with these black clamping knobs.
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Perfect For:
This product is perfect for DIY enthusiasts, woodworkers, and hobbyists needing a secure grip and quick adjustments. Its 1/4-20 threaded rods and star knobs offer easy clamping for tools like routers, saws, and drill presses.
Ready to Purchase?
6. guduling 30-Pack 1/4-20 Star Knob,1/4″-20 Female Threaded Knobs,Star Knobs,Hexagon Head Through Hole Hand Tighten Clamping Knob, with Internal Thread for T-Slot Tracks, Jigs & Fixtures
Get a huge pack of 30 star knobs perfect for your workshop projects! These 1/4-20 knobs are great for T-tracks, jigs, and machines, ensuring you always have spares on hand.
These knobs are built to last. They combine tough plastic with strong metal threads. They won’t break or wear out easily.
Tighten and loosen these knobs by hand with their easy-grip star shape. No tools are needed, making adjustments quick and simple, especially in tight spots.
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Perfect For:
This product is perfect for DIYers, woodworkers, and machinists needing durable, tool-free fasteners. Guduling star knobs offer easy adjustments in tight spaces and secure clamping for T-slots, jigs, and CNC setups.
Ready to Purchase?
7. Elegaperma 30pcs 1/4-20 Star Knobs,1/4″-20 Female Threaded Star Knobs,Hexagon Head Through Hole Clamping Knob,Black Nylon Screw-On Type Thru Threaded Knob Nuts for T Track Bolts,Machine Tool
Get a grip on your projects with 30 Elegaperma Star Knobs! These 1/4-20 threaded knobs are your go-to for a secure and easy fit. You’ll have plenty to keep your tools and machines running smoothly.
Crafted for durability, these knobs blend tough plastic and stainless steel for a long-lasting hold. Their star shape means you can tighten or loosen them by hand – no extra tools needed! They’re perfect for T-track bolts, jigs, and machinery.
Secure your work. Adjust with ease. Build with confidence.
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Perfect For:
Hobbyists and DIYers love these star knobs for their durable build and snug fit. Perfect for T-tracks, jigs, or machine tools, they offer quick, tool-free adjustments with a star-shaped grip.
Ready to Purchase?
8. WOODRIVER Knob Five Star with Through Hole 1/4″-20 Insert
Get a grip on your projects with the WOODRIVER Knob Five Star. It’s built for durability and ease of use. This knob makes adjustments a breeze.
This reliable knob features a 1/4″ x 20tpi thread size. It’s designed for secure fastening.
Trust WoodRiver for your woodworking needs. They offer top-notch tools and supplies. Make your wood work for you.
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Perfect For:
This WOODRIVER Knob is perfect for woodworking enthusiasts who need a reliable and sturdy knob with a 1/4″-20 thread size. It’s ideal for anyone looking to enhance their woodworking projects with quality hardware from a trusted American brand.
Ready to Purchase?
9. 10PCS 1/4″ Wing Knobs Through Hole T Knobs T-Plastic Handle Nut Black T Track Clamping Knob 1/4-20 Threaded Knob Hand Screw Nut for Woodworking Jigs and Fixtures Feather Boards Umbrella Base
The 10PCS 1/4″ Wing Knobs are perfect for your woodworking projects. Each knob is designed with smooth edges and a textured surface for easy grip.
Using these knobs is a breeze. They allow for tool-free tightening, making adjustments quick and simple for clamps and saw guides.
These knobs are made to last. They fit standard M6 threaded rods. Enjoy reliable performance in your workshop!
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Perfect For:
This 10-pack of 1/4″ Wing Knobs is perfect for woodworking enthusiasts and DIYers who need easy, tool-free adjustments for their jigs and fixtures. They offer a secure grip and durable performance for all your workshop needs.
Ready to Purchase?
10. Bykonh 1/4-20 Knob 6 Star Knobs, Plastic Hand-Tighten Thumb Nuts, Hex Head Knurled Grip Female Thread Through Hole Clamping Screw-On Thru Knobs, Zinc Plated Carbon Steel, Black, 4 PCS
Meet the Bykonh 1/4-20 Knob. These 6-star knobs make tightening easy. They offer a secure, comfortable grip.
Crafted from strong plastic and zinc-plated steel, these knobs are built to last. Their reinforced threads ensure a tight hold every time.
Installation is a breeze – just hand-tighten them onto your screws. They’re perfect for machines, furniture, and more.
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Perfect For:
These star knobs are perfect for DIYers, hobbyists, and pros working on machinery, electronics, or furniture. They offer easy, tool-free installation with a strong grip and durable design for reliable use.
Ready to Purchase?
Buying Guide
Perfect fit. Secure grip. These knobs make adjustments effortless and reliable. Users love how they lock tools firmly while turning by hand.
- Material Quality: Choose knobs made from tough nylon, brass, or steel for lasting use. These materials resist wear and keep tools firmly in place.
- Thread Compatibility: Ensure the 1/4″-20 thread matches your equipment. This size works with standard rods, jigs, and T-tracks for flexible setups.
- Ease of Use: Look for star, wing, or hex shapes that let you tighten by hand. No tools needed—quick adjustments save time in tight spots.
- Quantity & Value: Packs range from 4 to 30 pieces. Buy more if you need spares for frequent projects or replacements.
- Application Fit: Match knobs to your task—woodworking jigs, machinery, or clamps. Some designs suit precise tools, others handle heavy-duty jobs.
- Durability: Brass inserts and rust-resistant coatings boost lifespan. Avoid flimsy plastic that cracks under pressure.
- Design Details: Check for smooth surfaces, deep threads, and textured grips. These features prevent slippage and ensure steady clamping.