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Seimitsu PS-14-KN 30mm Screw Button: Smoke


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  • Product Description

    Notice Regarding Screw Ring Color

    Photos for Seimitsu buttons display a clear screw ring. Seimitsu now manufactures the screw ring with a milky white color, and improved durability.

    The Seimitsu PS-14-KN arcade pushbutton is only second in popularity to the SANWA series.  Available in several translucent colors, artwork can also be inserted under the cap of the plunger. and are sought after for their increased customization ability with joystick graphics and LED mods.  Seimitsu buttons offer the same high-quality and responsiveness as a Sanwa, but a slightly different feel and sound.

    Each comes with a clear screw nut, making it an excellent choice for both metal and wood joysticks.  The buttons are compatible with MadCatz FightSticks, Qanba and Hori joysticks. The PS-14 KN uses the Seimitsu PS-14-G Button Micro Switch

    Bundle with MM9-4 High Tension Button Spring and Save

    By default, Seimitsu PS-14-G microswitch requires 1.0N or 0.2 LBF (pounds force) to each button. 

    The MM9-4-25N adds an extra .08 LBF (pounds force), for a total of 0.28 LBF.  The result is a light, but firm button input requirement that accelerates its the button cap's return to neutral. 

    The MM9-4-50N adds an extra .16 LBF (pounds force), for a total of 0.34 LBF, resulting in a much firmer button input requirement that quickly pushes the button cap's to neutral position, ready for the next press.

    This is desirable to some who appreciate using more deliberate input force and a bit less sensitivity than Sanwa's SW-68 offers. Now, you can save 25 cents off the regular price of the MM9-4 series spring when you choose one of the high tension springs from the options list.

    24 vs 30mm

    When processing orders, a frequent mistake we found among new players is choosing the wrong size for action buttons, such as punch and kick.

    Within the fighting game genre, Japanese arcade buttons commonly consist of two diameter sizes: 24 millimeter and 30 milllimeter (mm). In most configurations, 30mm represents your action button.  These are front facing, appearing most prominent on your Fightstick control panel.  Option button, such as "Start", "Select", or more recently "Option", "Touch", or "Share" are usually 24mm.

    UPDATE: Owners of Neo Geo AES Joysticks will need 24mm pushbuttons instead of 30mm (Thanks SRK's DEZALB)

    Below is a visual representation of a common Fightstick control panel.  Throughout this article, we will mark 24mm in green, and 30mm in Orange.

    Common joystick configuration

    Checking the Proper Size

    button-30mm.pngAnother way that players can misinterpret the pushbutton size is by measuring the pushbutton plunger.  Have a look at the diagram at right.

    The plunger - the part that you press down to represent an input - is 25mm or a bit smaller in most 30mm pushbuttons.  Often this leads to the conclusion that one needs a 24mm button and not 30mm.

    Similarly measuring the button rim can lead to confusion, as it is intentionally larger than the button hole it is placed in.  You don't want to use these measurements.  Instead, review the button housing diameter, or the hole the button will be placed in.  You can do this with a caliper - a digital caliper is often quite helpful for this and other arcade-related projects.

    Control Panel Configuration

    Most Fightsticks from MadCatz, Hori, Qanba, and similar will use these two sizes.  How the buttons are used will depend on the model joystick that you own. Over time, we'll provide example configurations for specific popular Fightstick models and arcade cabinets using the color key for 24mm (green) and 30mm (orange).  We'll also expand the key for future models if another size is introduced, and we offer for sale.


    24vs30mm Hitbox Example
    HRAP and Qanba Model Configuration
    MadCatz Model Configuration
    Qanba Q1 and Mayflash/Venom Model Configuration

  • Product Reviews


    Write A Review

    1. Nice feel

      It’s pretty straight forward, it’s a really nice button. I’m my case the smoked black is kinda dark. I had to use regular clear caps to see my artwork. on Feb 13th 2020

    2. Best button I've been exposed to

      Firmer than Sanwa or Hori buttons which is nice though they are louder then my stock Hayabusa buttons.

      Operation is perfect and fit / finish are very good. Many comparisons are made to these and their Sanwa counterparts, personally there's not much to compare. If you want more button tension these are the best I've seen. Will be ordering more for future projects. Excellent buttons.
      on Sep 5th 2017

    3. Quality that surpasses most

      Everybody seems to always pick Sanwa over all the other brands, and its probably due to a bandwagon effect that MadCatz and other companies started by having their parts in them. Let me tell you, these buttons are much more praiseworthy, to me, they scream quality. compared to Sanwa buttons they are thicker, heavier, have a better gloss to them ,and have this very nice tactile feel to them that compliments their build quality. One more thing; they absolutely gorgeous. Note that whether or not you like the feel of this button is purely preference, try them out and see if you like them. on Apr 28th 2016

    4. Smoke buttons are great!

      First time using Seimitsu's and they feel great. Gentle on my fingers! on Apr 6th 2016