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20-Pack Knurled Clamping Knobs, M4x20mm Male Thread Knurled Thumbscrew, Carbon Steel Screw on Knobs Grips for Machinery/Electronic/Furniture, Mounting Handle Bolts [Black]

Free shipping on orders over $29.99

$7.99

$ 3 .99 $3.99

In Stock

1.Size:M4x10mm


About this item

  • [Multipurpose Use] - These thumb clamping screws are good for various applications requiring quick adjustments, such as woodworking, machinery, equipment assembly, lathes, drill presses, sawing machines, packaging, printing equipment, computer monitors, light fixtures, and patio umbrella brackets, etc
  • [Durable Thumb Screw Knobs] - Constructed with zinc plated carbon steel threaded studs for durability and wear resistance, these good plastic male thread knurled clamping knobs provide a smooth surface and comfortable grip
  • [Size & Package] - Thread Size: M4; Thread Pitch: 0.7 mm/ 0.03 inch; Thread Length: 20 mm/ 0.79 inch; Head Width: 14 mm/ 0.55 inch; Total Length: 32 mm/ 1.26 inch; Package Includes: 20Pcs x Round Knurled Thumbscrews
  • [Advantages] - This hand stud knob with a thermoset plastic knob can securely connect the parts and is easy to install. Round knurled knobs offer ease of grip and turning by hand, providing leverage and comfort for effortless tightening or loosening
  • [Attention] - Installation and removal can be done without the need for tools. Avoid over-tightening the knob to prevent potential damage or stripping of threads in the mating assembly



Product Description

Knurled Clamping Knobs
Metric Zinc Plated Carbon Steel Male Thread Thumb Screw on Type
Metric Zinc Plated Carbon Steel Male Thread Thumb Screw on Type
Plastic Round Head Threaded Hand Bolt Stud Knobs Black
4

T Shape Thumb Screws

This hand tightening thread thumbscrew can securely connect the parts and is easy to install. Tee wing knobs offer ease of grip and turning by hand, providing leverage and comfort for effortless tightening or loosening

4

T Shape Thumb Screws

3

T/Z Shape Thumb Screws

2

6 Star Female Thread Knobs

1

Round Head Knurled Clamping Knobs

Customer Reviews
5.0 out of 5 stars 3
5.0 out of 5 stars 4
4.5 out of 5 stars 4
5.0 out of 5 stars 4
4.7 out of 5 stars 4
4.5 out of 5 stars 4
Material Zinc Plated Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel Zinc Plated Carbon Steel
Include Nuts & Washers no data no data no data no data

J. Wells
2025-08-02 19:25:12
I didn't really need 20 of these, but I'm sure they'll come in handy. I ordered these to fix an articulating arm that has several of these types of knurled knobs--one broke making the arm worthless. If the other knobs give out, I've got backups now. These worked as expected and are definitely a step up in quality from the knobs they are replacing.
Customer
2025-07-19 15:48:13
I needed an M5 thumb screw to secure a rip fence in my Ryobi circular saw, and these were a perfect option. They're well made and a good size. They're textured and large enough to easily manipulate but small enough to stay out of the way once they've been adjusted.
MrSparky
2025-03-04 13:24:15
This set of knurled knobs arrives in a easy to recycle plastic bag. Each one is well made from a mix of carbon steel with a plastic handle. Something that's nicely durable and more than suited free workshop environment.Indeed several times I dropped some on the floor and they didn't break at all. Equally importantly I didn't find any burrs on the threads. Which meant I could use them straight away without having to do to debur them.About the only thing I did have to do was find some suitably sized M6 nuts and washers. That's because no nuts or washers are included in this set. But that was fine because I'm mostly using these inside T track, which doesn't use a standard nut.Primarily for the fencing system on my table saw, but especially when creating custom router jigs. Which is where the large quantity, you get 20 in the pack, comes in very handy. In particular I don't have to dismantle something I've already made and reuse the parts.Instead with this set i can leave everything's made up. Another thing I like is how this product comes in a wide choice of sizes. Plus the price is pretty good as well, especially considering the quantity you get.
Vine reviewer
2024-12-27 10:05:00
A perfectly good set of clamping knobs that will have multiple applications in my workshop. Very happy with these.