Top 10 Best m6 knob in 2026

Last Updated - 6/8/2026

🏆Best Choice

uxcell

uxcell 4pcs Knurled Clamping Knobs M6 x 12mm Metric 304 Stainless Steel Male Thread Thumb Screw on Type 25mm Plastic Round Head Threaded Hand Bolt Stud Knobs Black

9.8

ChoiceComparer.com Score

9.8

/ 10

Outstanding

Main highlights

•Standard Thread Size: M6 (1mm Pitch); Thread Length: 12mm / 0.47"; Knurled Head Diameter: 25mm / 0.98"; Total Height: 28mm / 1.1". The screws are neat and clear, the force is even, and it is not easy to slip.
•Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control. Great for saw, drill press, lathe and routing jigs, fixtures, packaging machinery, printing equipment, woodworking machinery and equipment.
•304 stainless steel threaded stud provides excellent corrosion resistance, oxidation resistance and high strength, ensuring durability and stability, preventing rust and providing reliable performance. The tightly-in metal insert ensures optimal durability and functionality, easy to install.
•Hand stud knobs with thermoset plastic knobs provide comfortable hand grip. The clamping knob is tight, sturdy and durable, with a smooth and beautiful surface.
•Always tighten the knurled knob securely to prevent any movement of the fixed assembly. Do not over-tighten the knob as this may damage or strip the threads in the mating assembly. Replace the knob if necessary.

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$6.99

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Aifeier ET

Aifeier ET 4 Pieces M6 x 20mm Star Hand Knob, Black Plastic Hex Shaped Clamping Knob Handle for Umbrella Base Replacement Knob (M6 OD≈5.82 mm)

9.7

ChoiceComparer.com Score

9.7

/ 10

Outstanding

Main highlights

•【You Will Get】4 pieces M6 x 20mm hand knob tightening screw (M threads are not compatible with US standard threads)
•【Quality Material】Plum blossom head is made of high quality plastic, sturdy and durable, not easy to deform, smooth surface, comfortable to hold, not easy to fall off. The screw is made of carbon steel, zinc-plated surface, overall smooth and burr-free, high hardness, the thread is deep and clear, smooth rotation, the force is even and not slippery, good fastening effect
•【Size】Thread size: M6 x 20mm / 0.229" x 0.788" (Dia x L). Thread Pitch: 1.0mm. Head diameter: 37.21mm / 1.465". (Note: Please check the size before purchasing. Considering tolerance issues, the actual outer diameter of the thread is 5.82 mm)
•【Easy to Use】No additional tools required, these umbrella base screw knob replacements install easily, comfortable in hand and ergonomic, easy to turn with just your fingers and will not scratch your hands
•【Wide Application】These male threaded knobs can be widely used as replacements, accessories, jigs and fixtures, etc. Suitable for rack bracket, speaker stands, woodworking fixtures, other mechanical equipment, a replacement for fastening screws in your daily life

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$6.99

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Rrina

Rrina 8 Sets M6 7 Star Through Hole Knob Nut Screw Clamping Knurled Threaded Knob Assortment Kit, Black Nylon Star Shape Hand Knobs

9.5

ChoiceComparer.com Score

9.5

/ 10

Outstanding

Main highlights

•MATERIAL: Knob made of high-quality nylon female thread knurled brass, screw made of 304 Stainless Steel.
•PACKING QUANTITY: 8Pcs knob nuts; 4Pcs M6x60 screws; 4Pcs M6x80 screws; 8Pcs nuts; 4Pcs T-Nuts(2020); 2Pcs T-Nuts(3030); 2Pcs T-Nuts(4040).
•SUITABLE FOR: Used for mechanical equipment, instruments, drilling machines, lathes, wiring fixtures, etc.
•Easy to use, can be installed and removed by hand, very convenient.
•Note: Please confirm whether size is appropriate before placing the order.

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$9.99

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Antrader

Antrader M6 Star Knob Clamping Handle Nut,10Pcs Thru Hole Star Knobs Nuts Screw Knurled Clamping Nut Knob Black Plastic Handle Clamping Knobs

9.4

ChoiceComparer.com Score

9.4

/ 10

Excellent

Main highlights

•Female Thread Diameter: M6; Color: Black; Head Diameter: 24mm/0.94". M6 size knob, suitable for various screws.
•These star through hole knob female thread nut are made of plastic and designed with internal threads embedded with brass,which can better improve our use efficiency,flexibility and convenience.
•The star shaped knobs is 6-star designed,not easy to slip, and there are no burrs.
•Star design adjusts and tightens easily, enhancing work efficiency.
•You will get 10pcs T-Track Knobs, enough to meet daily use,these star knob handles are widely used in machinery, electronics, equipment, furniture,ect.

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$6.29

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Haobase

Haobase 5pcs M6 X 32 mm Female Threaded 7 Lobes Through Hole Set-Up Knob Grip Black

9.2

ChoiceComparer.com Score

9.2

/ 10

Excellent

Main highlights

•Main Material: Plastic, Metallic; Package Content: 5 Clamping Range Knob
•Product Name: Clamping Knob; Weight: 50 grams
•Main Color: Black; Head Diameter: Star M: 32 mm
•Inner Thread Diameter meter: M6
•Total height: 23 mm

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$6.50

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Swpeet

Swpeet 15Pcs M6 7 Star Through Hole Knob Female Thread Nut Clamping Knob Grip Assortment Kit, Star Shape Hand Knobs Black Plastic Screw-On Handle Clamping Knob for Mechanical Equipment (M6)

9.1

ChoiceComparer.com Score

9.1

/ 10

Excellent

Main highlights

•1,【 Brand Advantage 】----- Join the 5 million+ Customers powered by our leading Product and Service.
•2,【 What You Get】 ----- In this kit, You will get 15Pcs M6 Through Hole 7 Star Knob Female Thread Nut Clamping Knob Grip Assortment Kit, You can free choose you want, These different sizes can meet all your different needs.
•3,【Various M4 M6 M8 M10 Thread】------- We have prepared three different sizes Through Hole Stars Knob for you, Universally fit and can be used for most types of machine tools, This Kit Can definitely meet all your daily needs.
•4,【Special Star Shape Design】------- This Through Hole Knob are Special Star Shape Design, Great for comfortable hand grip, accord with ergonomic design and plays a non-slip effect without scratching your hands. Knob handles are made of high quality plastic for durability and long service life.
•5,【Wide Application】----- Thread clamping knob black plastic hand knob star shape knob handle for machine tool. Star Shape Hand Knobs Black Plastic Screw-On Handle Clamping Knob for Mechanical Equipment, Instrument and Apparatus.

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$9.68

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YXQ

YXQ M6 Star Hand Knobs Tightening Screw Male Thread Stud Clamping Handle Grip Plastic Black Cap M6x10mm Thread 30mm Dia Base Head Black Plastic (6Pcs)

8.9

ChoiceComparer.com Score

8.9

/ 10

Great

Main highlights

•【Umbrella Base 】Someone uses those hand knobs as an umbrella handle, maybe it can inspire your project, Is a small and replaceable part.
•【Size】Thread Size: M6x10mm; 30mm Total height;25mm Star Head diameter
•【Easy to use】Simple installation, no need for other tools, can be installed or disassembled with one hand, saving your time
•【Made of plastic and metal】Strong stability, Star knobs are smooth, beautiful and comfortable to hold
•【Package Content】6 pieces M6 Star Head Clamping Knob

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$7.22

$8.49

-15%

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uxcell

uxcell Knurled Thumb Nuts, 4Pcs M6x1mm 304 Stainless Steel Round Knobs Fasteners for 3D Printer Parts, Silver Tone

8.8

ChoiceComparer.com Score

8.8

/ 10

Great

Main highlights

•[Knurled Thumb Nuts] - Thread Size: M6; Pitch: 1mm
•[Size] - 20mm x 12mm/0.79" x 0.47"(D*H)
•[Material] - Made of 304 stainless steel material that is high hardness, no rust and perfect corrosion resistance.
•[Easy to Use] - This nut with knurled surface that can be easily tightened, assembled and disassembled by hand without any tools.
•[Application] - Commonly found on 3D printer beds, machine tools, cabinets, toolboxes, great for crafting projects and things that require quick adjustments.

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$8.99

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Zorfeter

Zorfeter 10 Pcs M6 x 25mm Thumb Screw Threaded Knurled Replacement Star Hand Knob Clamping Screw Knobs

8.6

ChoiceComparer.com Score

8.6

/ 10

Good

Main highlights

•What You Get - 10Pcs x Hand Knob Tightening Screw. Thread Type is metric M6, please check the thread size you need before buying.
•Durable Materials - Clamping Screw Knobs are constructed of plastic and high-quality steel with zinc plated, wear and corrosion resistance, with excellent durability and strength.
•Star Hand Knob Measure - Thread Size (D*L): M6 x 25mm / 0.24 x 0.98inch; Head Dia (Approx): 24mm / 0.94inch. The umbrella base screw is a fastening accessory that can be applied for a long time.
•Easy to Use - The grip knob replacement screw adopts a screw-in design, and no extra tool required; Hexagonal star handle, easy to grasp, non slip, smooth surface does not scratch the hand. It can be installed in any place you need, which definitely bring great convenience to your life.
•Extensive Use - Suitable for umbrella base screw knob replacement, wood shop, speaker stands, radios, woodworking clamps and jigs, lathe machine, mechanical equipment and other industrial equipment.

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$6.49

$6.99

-7%

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uxcell

uxcell 2Pcs Clamping Screw Knob, M6 x 20mm Metric 304 Stainless Steel T Shaped Thumb Screws Handle for Quick Remove Hand Tightening Knob Replacement

8.5

ChoiceComparer.com Score

8.5

/ 10

Good

Main highlights

•[Product Dimension] - Thread Size: M6 x 20mm(D*L); Thread Pitch: 1mm/0.04-inch; Head Dia: 36mm/1.42-inch; Total Height: 38mm/1.5-inch. Please refer to the product parameters according to the usage scenario to adapt the required thread dia and length.
•[Material] - The wing handle screw is made of 304 stainless steel, while the knob is made of plastic, which is rust-proof, corrosion-resistant and oxidation resistant, durable and hard to break and deform, which prolongs the service life of the product.
•[Knob Design] - The thumb screw knob is a T-shaped ergonomically designed, which provides a comfortable grip and anti-slip effect. convenient to use and operate. Adequate finger grip spacing ensures convenience for adjustment and control.
•[Easy to Install] - The fully threaded and even pitch constructed to uniform force for locking firmly, not easy to slip. The clamping screw knob can be installed or disassembled freely without any other tools, just need to install or disassemble it by directly turning the screw.
•[Wide Range of Applications] - The clamping knob handle is commonly used in mechanical equipment, electronic equipment, lathes, workshops, rack brackets, instruments, construction, furniture equipment and other related industries.

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$5.99

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