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uxcell M3x3mm Metric Carbon Steel Hex Socket Set Flat Point Grub Screws Black for Towel Rack Door Knob 50pcs

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$6.19

$ 2 .99 $2.99

In Stock

About this item

  • Specification: Thread Size:M3x3mm; Main Color:Black; Thread Pitch:0.5mm; Total Length:3mm; Drive Type:Hex Socket; Material:Carbon Steel
  • Application: Widely used in machinery and equipment, civil hardware and compact instruments, such as gear fixing, cam fixing, household door handle, hardware faucet, towel rack, etc.
  • How To Use: According to the thread size and hole depth, select the corresponding set screw thread diameter and length, and use the slot type matching wrench to lock the set screw into the installation threaded hole with appropriate force.
  • Notice: Do not over tighten the set screws to avoid the drive slot slippage.
  • Advantage: Precision mechanical thread, high torque drive groove type, good locking effect. Compact size and concealed installation. Carbon steel and stainless steel materials can adapt to various indoor and outdoor environments and are durable and easy to disassemble.



Product Description

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Flat Set Grub Screw is composed of thread, driving groove, and flat end. It is connected by thread, driven by a large torque groove, and positioned by the friction force between its end plane and machine parts. The flat set grub screw is generally made of carbon steel, stainless steel, non-ferrous metal, or non-metallic materials. The drive groove type is usually slotted and hexagonal, and the thread system includes the metric system and the British system.

NOTE: When locking the set screw, please choose a suitable wrench and apply a suitable force to avoid sliding grooves and the inability to disassemble.

Applications

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In machining equipment, cams, gears, handles, and other metal devices are easy to wear and require frequent adjustments. The use of a set screw connection can facilitate the adjustment or replacement of these metal devices.

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Commonly used in door handles, shower hardware faucets, and showers, etc. It is durable and easy to install and dismantle.

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Flat set grub screws can be seen on the handles, wheels, adjustment rods of tractors, and lawnmowers. It is hidden in a small hole and is one of the precision fasteners that are very difficult to find.

How to choose set screws:

  • Cone-pointed set screws (pointed): generally used in places that do not need to be disassembled frequently after installation, and are suitable for parts with less rigidity.
  • Cone-pointed set screw (unpointed): it is necessary to drill a hole on the tightening surface of the part first, so that the conical surface is pressed against the edge of the hole to enhance the load transmission capacity. It is suitable for parts with greater hardness.
  • Flat point set screws: mostly used in connections that require frequent adjustments, and the transfer load is small. The flat point has a large connected area and can be used for parts with high hardness, and the connected surface needs to be flat.
  • Cylinder point set screws: used in places that require frequent adjustments. It can transmit large loads. There should be a device to prevent loosening when using these screws.

kenneth rood
Reviewed in the United States on February 9, 2025
a advertised
Finnulf
Reviewed in Canada on October 1, 2024
If you're looking for replacement set screws for your airsoft muzzles/flash-hiders, these are what you want.
Donald Harrison
Reviewed in the United States on August 13, 2023
Right size and good quality.
Alex Illas
Reviewed in the United States on March 11, 2023
Exactly as described. Perfect fit, fast shipping at a fair price.
Gretchen Smith
Reviewed in the United States on April 21, 2023
A perfect fit for your heater block.
Bradon F.
Reviewed in the United States on March 24, 2021
Great, good quality set screws.
<$Error>
Reviewed in the United States on April 1, 2021
I stripped the grub screw (set screw) in the heater block for my 3D Printer (Wanhao i3 style; MK10 Heat Block). This is the one that holds the heating cylinder in place. It was damaged beyond use so I needed to buy a replacement. Every seller I came across was selling just 1 or 2 screws and they seemed expensive. I could just buy a new heater block with the screw attached for a little more. Then I found this listing. I was able to get a much larger quantity for approximately the same price--even cheaper in some cases. I was worried it wouldn't work, but it is a perfect fit. (Sorry for blurry photo, but that's where it goes on the MK10 block if you're wondering).
Vance L. Blosser
Reviewed in the United States on June 20, 2018
Exact replacement for grub screws on my 3D printer.
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