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3 blades unlock a free holder or blade

Add any 3 blades. Your holder is free if it's in your cart, otherwise your cheapest blade is.
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LIFETIME WARRANTY

Upgrade to lifetime warranty

Lifetime warranty added

Every item in your order, up from 2 years.

Every item in this order is covered for life.

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From $22.95 USD
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International orders may owe duties or VAT on delivery. Learn more

30-day returns 4.7 · 900+ reviews Designed in Oregon

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BitWhip Travel Case
$44.00
RGB Critter Travel Case
$29.00
BitWhip Accessory
From $44.00
Fiber Optic Duster -⁠ Black
$29.00
Critter To LPB Adapter
$29.00
DIY Connector
$22.00
Critter Connector
$37.00
Light Painting Blade Holder
$29.00
Modular End Cap
$29.00

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Contact Saber Weight Allen Key - 4mm black hex key
4 mm hex key rotating 360 degrees
Contact Saber Weight Allen Key - 4mm black hex key
4 mm hex key rotating 360 degrees

Flow Cap Counterweight System Screw Allen Key (4mm)

The 4mm hex key for the counterweight screw.

The 4mm hex key for the counterweight screw.

WRITE REVIEW

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The Flow Cap Counterweight System Screw Allen Key (4mm) is the hex tool for the Flow Cap Counterweight System Screw, the connecting screw that semi-permanently joins the Flow Cap Mount to the Saber Hilt Extension.

With the screw and its PTFE shim installed, the mount and the hilt extension will not unthread, rotate or work loose. This is the key you need to take that joint apart again.

Full details and specs Show less

You already have one. This 4mm key ships in the box with the Flow Cap Mount, the Flow Cap Counterweight System and the Flow Cap Counterweight Kit, along with the connecting screw and shim. This listing is the spare or replacement.

It is not the tool for the Contact Saber Weight set screws. Those are M4 x 3 and take a 2mm Allen key, which also ships with the mount, system and kit.

Specs

  • Size: 4mm

  • Type: Hex / Allen key

  • Blackened carbon steel, L-shaped

  • Dimensions: 4 x 26 x 67 mm (across flats x short arm x long arm)

  • Use: Flow Cap Counterweight System Screw (connecting screw)

Price$2.00
Regular price
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30-day returns

Shipping to Canada is a flat rate from $22.95 USD, added at checkout. Free shipping is US only. Shipping policy.

4.7 · 900+
reviews
30-day
returns
Designed
in Oregon

2-year warrantyDefects in materials or workmanship are covered for 2 years from the date of purchase.

Lifetime upgrade in the cartAdd it and every item in the order is covered for as long as you own it. Batteries are covered for 60 days.

Free 30-day US returnsUnused and in the original packaging, and we email you a prepaid label. International returns are accepted within 30 days, return postage is yours.

Broke in use?That is a warranty claim, with no 30-day limit. Email support@antsonamelon.com and we repair or replace it.

Full warranty policy  ·  Full return policy
Flow Cap Counterweight System Screw Allen Key (4mm)
Flow Cap Counterweight System Screw Allen Key (4mm)
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LIGHT PAINTING SABERS. BUILD YOUR KIT.

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Transform your light art with our modular light painting tubes. Designed for photographers and artists, these customizable tubes let you create stunning long-exposure effects and dynamic light trails.

Pattern Tube Set

Butterfly, Honeycomb and Dots Combo, any length.

From $70.00
Build Your Own Tube Pack

Mix any patterns and lengths, 1 to 8 tubes.

From $174.00
Light Painting Tube

Broad ribbons of color. Needs the Tube Adapter.

4.8 (47), rated 4.8 out of 5 from 47 reviews
From $37.00
Honeycomb Light Painting Tube

Laser-cut honeycomb texture for long exposures.

4.7 (29), rated 4.7 out of 5 from 29 reviews
From $29.00
Dots Combo Light Painting Tube

Two different dot effects, one tube, one tool.

From $29.00
Butterfly Light Painting Tube

Laser-cut wings for textured light trails.

4.5 (21), rated 4.5 out of 5 from 21 reviews
From $29.00
Spiral Dots Light Painting Tube

Laser-cut spirals that twist dotted trails of light.

5.0 (1), rated 5.0 out of 5 from 1 reviews
From $37.00
RGB Critter Tube Adapter - Long

Twists on and grips a 1 inch tube for spinning.

$51.00
Modular Saber Tube Adapter

Clamps a 1 inch tube and gives you a thread.

$37.00
Shop all Modular Light Painting Sabers

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International Shipping Restriction

This lithium-ion battery cannot be shipped internationally and cannot be added to your cart.

You can purchase the required battery locally with these specifications:

  • 18650
  • Lithium-ion
  • 3.6V nominal
  • Unprotected
  • Flat top
  • 18.3mm diameter × 65.0mm length

Do not purchase protected, button top, 3.2V, or 1.5V cells.

Ants on a Melon is not responsible for batteries purchased from third-party sellers. Please verify specifications and use only high-quality lithium-ion cells from reputable brands.

LIFETIME WARRANTY
Every item in your order, for life.
Our gear comes with a 2-year warranty. This upgrade extends every item in your order to lifetime.
WHAT YOU ALREADY GET
2 years on everything in your order, free. Batteries have their own 60-day warranty.
WHAT THIS ADDS
If anything in this order fails from a defect, we repair or replace it for as long as you own it.
NO HASSLE CLAIMS
Email us photos or a short video. Most repairs are back out in 2 to 3 working days.
NOT COVERED
Drops, a cracked housing, loss, theft, broken fiber strands and normal battery wear.
International duties & VAT
A quick heads-up for orders shipping outside the US.
Set by your destination
Import duties and VAT are charged by your country's customs, not by Ants on a Melon.
Paid on delivery
Your carrier collects any charges when they deliver. Amounts vary by country.
Still fully guaranteed
Every international order is guaranteed to arrive. Need help? Email support@antsonamelon.com