M3 M4 Thumb Screws of 2025
Best Choice1
BUUV20Pcs M3 M4 M5 Brassl Long TypeSmall Head Thumb Screws Metric Knurled Head Manual Adjustment Screws A1(Brass with Nickel,16MM_M3 20PCS)
Main highlights- The workmanship is fine, the threads are complete and deep, the force is even, not easy to slip, the fastening is good, and the hand screws are strong.
- Stainless steel is used for its high temperature strength and low temperature toughness.
- Replaces computer case thumbscrews, providing quick installation to secure the case and allows easy hand tightening of the computer case without much force.
- Note: Due to manual measurement, there are slight errors, please refer to the actual situation!
- Easy to install, tighten the computer by hand or using a suitable screwdriver.
9.7Exceptional
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Value for Money2
SING F LTDSING F LTD 10Pcs of M3 M4 M5 M6 M8 Knurled Thumb Nuts Round Hand Grip Knobs Female Threaded 304 Stainless Steel DIN 466 High Type
Main highlights- Works with bolts, studs and screws.
- The knurled portion adds friction for extra grip when tightening.
- High type DIN 466.
- 304 stainless steel materialand durable to use.
- 10pcs of M3, M4, M5, M6, M8 knurled thumb nuts, 2pcs of each size.
9.6Exceptional
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3
LBYLBY 100pcs Knurled Hand Screw, M3/M4/M5 Knurled Head Fully Threaded Thumb Screws(Double Layer Step) and Wing Nuts 13 Kinds Assortment Kit, Carbon Steel Galvanized
Main highlights- 5.Use: widely used in electronic equipment, communication equipment, ships etc.
- 4.Contains: 13 Sizes, a total of 100 pieces.
- 3.Size : screw: M3 x 8/12 / 16 / 20mm,M4 x 8/12 / 16/20mm,M5 x 10 / 25mm;nuts: M3 M4 M5.
- 2.Materials: Carbon steel, galvanized; Colors: Silver-blue.
- 1.High head knurled screws and butterfly shape nut combination.
9.4Excellent
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4
LBYLBY 100pcs Knurled Hand Screw, M3/M4/M5 Knurled Head Fully Threaded Thumb Screws (Single Layer Step) and Wing Nuts 13 Kinds Assortment Kit, Carbon Steel Galvanized
Main highlights- 5.Use: widely used in chassis circuits, electronic equipment, communication equipment, ships etc
- 4.Contains: 13 kinds,a total of 100 pieces.
- 3.Size : screws: M3 x 6 / 10 /16/ 20mm,M4 x 6/10 / 16/20mm,M5 x16/ 25mm; nut: M3 M4 M5.
- 2.Materials: Carbon steel, galvanized; Colors: Silver-blue.
- 1.Thumb screws and wing nuts combination.
9.3Excellent
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5
WokapeWokape 65Pcs Knurled Thumb Screw Assortment Kit, M3 M4 M5 M6 M8 Zinc Plated Carbon Steel Knurled Thumbscrew Flat Knurled Head Fully Threaded Bolts Fastener
Main highlights- 【Zinc-Plated Carbon Steel】: Our round knurled thumb screws are made of carbon steel with a zinc-plated surface, featuring durability, wear resistance, and robustness. They are resistant to rust and discoloration, providing the screws with an extended service life.
- 【Knurled Thumb Screw】: The knurled thumb screw kit contains 20pcs M3 thumb screws, 20pcs M4 thumb screws, 10pcs M5 thumb screws, 10pcs M6 thumb screws, 5pcs M8*20MM thumb screws, 65pcs totally. Plenty of quantities and different sizes to meet your needs.
- 【Easy to Use】: No tools required. Flat knurled screws are easy and simple to use. Thumb screws with delicate knurling and thread design not only make them more beautiful, but also help to increase the friction and grip, no additional tools are needed to tighten them.
- 【Widely Application】: These grip knobs fasteners are widely used in medical equipment, communication equipment, electronic equipment, mechanical components, home appliances, furniture, lampshades, musical instruments and other DIY projects.
- 【Size Details】 ：In the knurled thumb screw kit, We have prepared M3*10MM, M4*10MM, M4*12MM, M5*12MM, M6*16MM, M6*25MM, M8*20MM, 7 size fully thread knurled screws for you, you can free choose the products you need according to your needs.
9.2Excellent
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6
WokapeWokape 42Pcs Knurled Thumb Nuts Assortment Kit, Nickel Plated Iron Knobs Fasteners Round Hand Screw Nuts for 3D Printer Parts (M3 M4 M5 M6 M8 M10)
Main highlights- 【 Wide Applications 】 ：Ideal nuts kit for machine tools, 3D printer parts, furniture parts replacement, etc. Suitable for auto parts, machinery manufacturing, construction industry, petroleum pipeline, chemical industry, marine field.
- 【 Thread Design 】 ： without tools. The hand-screw nuts are easy and simple to use. Thumb nut with collar and threaded design helps increase hand friction and grip without the need for additional tools to tighten.
- 【 Size Details 】 ：Wokape has knurled thumb nuts in both stainless steel and nickel-plated iron. Each material is available in 6 sizes: M3, M4, M5, M6, M8, M10. You can choose according to the desired material and size.
- 【 Nickel Plated Iron 】 ：Made of good nickel plated iron with smooth and bright surface and strong toughness. Dense plating, corrosion-resistant, environmentally friendly and has long cycle life.
- 【 Knurled Thumb Nuts Assortment Kit 】 ：You will get 42Pcs 6 sizes nickel plated iron knurled round knobs fasteners, including 10Pcs M3, 10Pcs M4, 10Pcs M5, 6Pcs M6, 4Pcs M8 and 2Pcs M10. Various specifications are available to meet your needs.
9.1Excellent
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7
SeroNiENTAOER 20PCS/LOT M3 M4 M5 M6 Knurled Brass Flat Head Hand Tighten Thumb Screws(M3x16 20pcs)
Main highlights- Quantity:20pcs
- 20PCS/LOT M3 m4 m5 m6 brass Knurled Flat Head Hand tighten Thumb Screws
8.9Very Good
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8
GenericGeneric 5pcs 10pcs Aluminum Thumb Screw M3 M4 m5 m6*6/8/10/12/16/20 Knurled Head Colourful Aluminum Hand Tighten Screw Bolts(Black,8MM_M3 10PCS)
Main highlights- *thread has uniform pitch, clear texture and Strong bite
- *and suitable for various environments.
- *They have oxidation resistance, which can ensure long time using.
- *Model Number : M3 M4 M5 M6
- *Knurled head colourful Aluminum Hand tighten Screw bolts, made from Aluminum head stainless steel for durability
8.7Very Good
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9
OCROCR 70PCS M4 Thumb Screws, Thumbscrew Set Carbon Threaded Knurled Knob Mounting Screw Grip Knobs Handle Bolts Round Clamping Screws Hose Clips for Kinds of Stand and Machine
Main highlights- 【Wide Scope of Application】Used in metal working, fix microphone stand, attach TV and computer monitors etc. Suitable for woodworking, auto body shops projects, mechanical equipment, drill press, lathe machine, table saw, workshop machinery, door, cabinet, the rack bracket, furniture equipment, instrument and so on. Also available as a replacement knob for shop wiring jigs and fixtures.
- 【Value Knurled Thumb Screw Kit】The thumb screw knob contains 70Pcs 7 sizes knurled thumbscrews: M4 x 10mm, M4 x 12mm, M4 x 14mm, M4 x 16mm, M4 x 18mm, M4 x 20mm, M4 x 25mm. All of them are packed in a clear storage box for easy carrying and take. Multiple sizes and abundant quantities can satisfy your lathe replacement needs.
- 【High Quality】The male thread knurled clamping knobs are made of High quality galvanized iron, with good hardness, strength, anti-corrosion and good stability
- 【Easy to Install】Clamping screw on type design for easy install, smooth lines and finger grip spacing for easy turning, no need tool
- Secure knurled thumb screws for the ultimate in adjusting and tightening control. The screws are neat and clear, the force is even, and it is not easy to slip.
8.6Very Good
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10
QuarkMRO304 Stainless Steel Knurled Thumb Screws M2.5 M3 M4 M5 M6 M8 M10 (M2.5 x 8mm,10)
8.5Good
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