Gold contact Screw 1
Specifications
- Weight
- 2 g
- Length
- 38 mm
- Thickness
- 3.7 mm
- Material
- Gilded brass
- Composition
- Brass with galvanic coating
- Compatibility
- Standard coil machines
Ghiduri utile:Întreținerea mașinii de tatuatÎntreținerea mașinii de tatuat: piesele de schimb esențialeDe ce zăngăne sau vibrează anormal mașina de tatuat: cauze mecanice și remedii
Presentation video
Guide & full description
Complete guide: Gold contact Screw 1
This is a contact screw for coil tattoo machines, the part that adjusts the distance between its tip and the contact spring — i.e., the exact parameter that determines the machine's electromagnetic cycle and stroke. The 'Auriu 1' variant has a distinct construction geometry compared to the standard gold model, and the galvanic gold-plated brass finish ensures good electrical conductivity and oxidation resistance. It is a tuning part for tattoo artists who work on coil machines and want to customize their adjustment or have a quality spare in their kit.
How to use
- Disconnect the machine from the power supply before any intervention on it.
- Unscrew the old contact screw from the threaded housing of the frame (binding post).
- Screw the new screw into the same housing — the thread is a standard one, compatible with most conventional coil machine frames.
- Adjust the distance between the screw tip and the contact spring according to your preferences: the contact distance directly influences the machine's behavior (harder or softer response).
- Secure the adjustment, reconnect the machine to the power source, and check operation at your usual working voltage.
- Always test on practice skin before a client session to confirm the adjustment feels as you want.
- After the session, clean the contact tip with isopropyl alcohol to keep the electrical contact clean.
Tips from us
- Tip geometry matters: a sharper tip gives a precise contact point but wears faster; a more rounded tip distributes contact over a larger surface and lasts longer. Keep this in mind when comparing screw variants.
- Always keep a spare contact screw in your kit — it's a small part (2 g), inexpensive but critical: without it, the coil machine won't work properly.
- If you feel resistance when adjusting, lightly lubricate the thread with machine oil — never force the thread.
- Do not use abrasive materials on the gold finish: the galvanic coating wears thin through friction, and the exposed area starts to oxidize and degrades the electrical contact.
- It's worth having several contact screw models on hand: changing the screw takes under a minute and can transform the behavior of the same machine from liner to shader without other modifications.
- Periodically check the condition of the coating at the tip — when you notice the gold layer is gone at the contact point, it's time to replace the screw.
Frequently asked questions
What is the difference between this 'Auriu 1' model and the standard gold contact screw?▾
The difference is constructive: the geometry of the contact tip, the profile of the adjustment head, or the overall dimensions. Functionally, both do the same thing — they control the contact distance from the spring, hence the machine's electromagnetic cycle. The design differences subtly influence the adjustment feel and machine behavior, and the choice between them is a matter of personal preference. Many tattoo artists test several variants until they find the configuration that suits their style.
Does it fit my coil machine?▾
Yes, in the vast majority of cases: the screw has a standard precision thread, calibrated for conventional coil machine frames. As a simple check — if your current screw screws in and out normally in the frame, a screw with the same standard thread will be compatible. The part dimensions are 38 mm length and 3.7 mm thickness.
Why gold? Does the finish matter on a contact screw?▾
Yes. The galvanic gold plating on brass provides superior electrical conductivity and oxidation resistance at the contact point — exactly where a dirty or oxidized contact ruins the machine's operation. However, note that the gold layer thins over time from repeated friction with the spring; when the coating disappears at the tip, the exposed area starts to oxidize, and it's time to replace the part.
Can I combine it with a silver spring?▾
Yes, the combination of different materials at the contact point is perfectly functional — some tattoo artists even prefer it for the contact characteristics it produces. The essential condition is that both contact surfaces are clean, polished, and unoxidized; the condition of the surfaces matters more than the combination of finishes.
How do I maintain it to last as long as possible?▾
Clean the contact tip with isopropyl alcohol after each session, periodically check the thread and the condition of the gold plating, and never use abrasive materials on the finish. If the adjustment is stiff, put a drop of machine oil on the thread. The wear of the coating depends on the intensity of use and the set contact force, so a correct adjustment also extends the life of the part.
I'm a beginner on coil machines — do I need multiple contact screw models?▾
At first, not necessarily: a single quality screw, properly adjusted, is enough to learn how the machine reacts. As you gain experience, you'll notice that different tip geometries subtly change the machine's response — then it makes sense to try variants like 'Auriu 1' versus the standard model. Regardless, a spare screw in the kit is a good idea from the start, because it's a small part that wears out by the nature of its operation.
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