Ref: 241

Brand: ModMaker

Battery Polarity Stickers

A sheet of 67mm X 8mm vinyl stickers with permanent adhesive designed to fit into Keystone 18650 battery sled apertures although they can be used anywhere that you need to clearly show the orientation of a battery.

Price £1.00
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MM510 V2 Squonker (SS/22mm*2mm/Screw)


The 2nd Generation MM510 Squonker Version

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Quantity Unit discount
50 5%
100 7.5%
250 10%


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Designed by us, we are pleased to bring you what we think is the best spring loaded squonker 510 available.
We have listened to user feedback for a long time now and have worked to try to resolve some issues with current 510 designs.
We welcome your feedback and will continue to tweak the design based on user feedback so let us know what you think.


  • Glass filled peek insulator. This material can take some serious heat and is much stronger than Delrin or Ultem
  • Wave spring. A stiffer spring for a better connection.
  • Typical spring pressure: 4.2kg (42N)
  • Oring / gasket embedded into the positive pin to eliminate leakage.
  • Oring embedded into the insulator to eliminate leakage between the insulator and the body threads.
  • Negative solder tab included for non mechanical squonkers.
  • Hex Head on the positive pin to tighten the positive nut


  • Body Top Plate: Stainless Steel
  • M10 Securing Nut: Silver Plated Brass
  • Insulator: Glass Filled Peek
  • Pin: Stainless Steel
  • Spring Cap: Silver Plated Brass
  • 10mm Positive Round Nut: Silver Plated Copper
  • Negative & Positive Solder Tabs: Copper

The threaded section is m10 (10mm x 0.5mm) thread. The top plate is 22mm diameter and 2mm thick. with countersunk holes to accept an M2.5 machine screw. The body of the 510 is made from stainless steel. We did consider making it in other materials but we want these to last and stainless is  the hardest material we could use.
It also features a 2mm hex head on the pin for tightening the positive nut and comes with a standard m3 hex nut if you want to replace the positive nut.

16mm*0.5mm Version:

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