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uxcell 4pcs Knurled Clamping Knobs M5 x 15mm Metric Zinc Plated Carbon Steel Male Thread Thumb Screw on Type 16mm Plastic Round Head Threaded Hand Bolt Stud Knobs Black

Free shipping on orders over $29.99

$6.69

$ 2 .99 $2.99

In Stock

1.:M8 X 12mm X 30mm


2.Material Type:Zinc Plated Carbon Steel


About this item

  • Standard Thread Size: M5 (0.8mm Pitch); Thread Length: 15mm / 0.59"; Knurled Head Diameter: 16mm / 0.63"; Total Height: 25mm / 0.98". 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.
  • Zinc plated carbon steel threaded stud enhances the durability, making it resistant to wear, corrosion and rust. 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.



Product Description

1

Lathe Accessories

A wide variety of lathe accessories are provided: Ball Knobs, Star Knobs, Knurled Knobs, Lever Handles, Revolving Handles, Hand Wheels and so on. They are universal use and suitable for your lathe machines.

Great replacement accessories for your lathe. Please pay attention to the measurement to make sure it is right for you before ordering.

Knurled Knobs

Knurled Texture

The knurled texture on the surface provides better grip, making it easier to tighten or loosen the knob. Safe and secure knurled thumb screws for the ultimate in adjusting and tightening control.

Clear Threads

The threads are neat and clear, the force is even and deep, not easy to slip, and there are no burrs. Screw on type design for easy installation.

Durable Plastic Knob

Durable plastic clamping knobs provide a smooth and beautiful surface as well as a comfortable grip.

Wide Applications

Knurled knobs with hand bolts are commonly used in applications that require frequent adjustments or tightening.

Widely used in lathes, drill presses, sawing machines, packaging and woodworking machinery, printing, instrument and industrial equipment, and fixtures.

Do not over-tighten the knob as this may damage or strip the threads in the mating assembly. Replace the knob if necessary.


Benjamin Ashby
September 4, 2025
Just what I was looking for - hard to find at a store, easy to find on Amazon!
Fisheye_3D
August 30, 2025
Worked for what i needed, no issues.
himself70
August 15, 2025
Good as expected
Anthony Vorell
August 13, 2025
I was building a stand for a Roland fp-30x digital piano. After trying a few things I had, I made a guess this was the right size, and it was. I don’t know why this information isn’t on the manual from Roland
Unsatisfied Customer
August 11, 2025
I replaced some hex key bolts on some t-slot adjusters and can now make fixture adjustments without any tools.
CW
July 13, 2025
Right size for collection bag on chipper/shredder.
James M. Martin
July 12, 2025
Works as designed Great thumb screw.
Eric D. Shaw
July 7, 2025
These are well made, and the metal, threaded section is exactly 20mm (as advertised). The black plastic knobs are solid, comfortable and smooth without any surface imperfections. 5 Stars!!!
Michael Grell
June 26, 2025
Gotta love when something is exactly as described. Fit my TV stand perfectly.
Benjamin Ashby
June 11, 2025
Just what I was looking for - hard to find at a store, easy to find on Amazon!
Fisheye_3D
June 8, 2025
Worked for what i needed, no issues.
himself70
May 6, 2025
Good as expected
Anthony Vorell
April 14, 2025
I was building a stand for a Roland fp-30x digital piano. After trying a few things I had, I made a guess this was the right size, and it was. I don’t know why this information isn’t on the manual from Roland
Unsatisfied Customer
April 9, 2025
I replaced some hex key bolts on some t-slot adjusters and can now make fixture adjustments without any tools.
CW
April 3, 2025
Right size for collection bag on chipper/shredder.
James M. Martin
March 21, 2025
Works as designed Great thumb screw.
Eric D. Shaw
February 23, 2025
These are well made, and the metal, threaded section is exactly 20mm (as advertised). The black plastic knobs are solid, comfortable and smooth without any surface imperfections. 5 Stars!!!
Michael Grell
February 10, 2025
Gotta love when something is exactly as described. Fit my TV stand perfectly.
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