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uxcell 12pcs Knurled Clamping Knobs M4 x 8mm Metric 304 Stainless Steel Male Thread Thumb Screw on Type 14mm Plastic Round Head Threaded Hand Bolt Stud Knobs Black

4.6 (9) Write Review
Free shipping on orders over $29.99

$6.49

$ 2 .99 $2.99

In Stock

1.:M5 X 12mm X 25mm


2.Material Type:Stainless Steel


About this item

  • Standard Thread Size: M4 (0.7mm Pitch); Thread Length: 8mm / 0.31"; Knurled Head Diameter: 14mm / 0.55"; Total Height: 19mm / 0.75". 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.


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.


GregInWI
August 5, 2025
Great thumb screws to secure a TV/monitor to a VESA mount.
Yuri Pavlov
June 17, 2025
Used m4x30 makes changing out blast cabinets glass a breeze
customer
May 9, 2025
I use 18ah LifePO4 batteries for emergency power packs with 2-3 different circuits connected. These thumb screws fit the batteries perfectly, removing all need to have extra tools to connect on the fly.
GUI
April 28, 2025
Loved the dimensioned drawing, really helped.
laura
March 23, 2025
I needed this for mounting my back up camera.
Brody's Arts & Crafts LLC
March 7, 2025
Used as a soulution to offer a QD option to mounted optics. Keeps me from having to carry a number of spiffic tools. Can remove optic swiftly and fall back to BUIS in field.
MidWest
February 18, 2025
The fit is good, but the knobs are hard to grip well.
Michael A Villano
December 2, 2024
Nice quality
Harold Pépin
November 24, 2024
Livraison rapide et bon prix