More from Guyker →Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine Heads For ST TL Guitar
$31.49–$39.99
In stock at guyker.com
The Guyker GK-55 locking tuners are a six-in-line set for right-handed ST and TL style guitars with 9 mm peg holes. They use a 1:15 gear ratio and lock the string to speed up restringing. Gold and Nickel finishes are offered, and this listing ships from US stock.
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ALEKSANDRBODNARSee all 922 Guyker products·Visit guyker.com
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Highlights
- Locking string posts
- 6R six-in-line layout
- 1:15 gear ratio
- Fits 9 mm peg holes
- Ready to ship from the US
Best for
Strat and Tele players who want faster string changes and steadier tuning.
Things to consider
- Right-handed 6R only.
- Title says GK-55NSP-IV while the spec says GK-55SP-IV; it appears to be the same set.
- Price runs $31.49 to $39.99 by finish.
Key specs
| Price | $31.49–$39.99 |
|---|---|
| Model | GK-55SP-IV |
| Layout | 6R (six in line) |
| Gear ratio | 1:15 |
| Peg hole | 9 mm |
| Post diameter | 6 mm |
| Weight | About 35 g each, 216 g per set |
| Finishes | Gold, Nickel |
| Shipping | Ready to ship (US) |
Our take
An affordable locking upgrade for ST and TL guitars, shipped from the US.
Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… at a glance
| Brand | Guyker |
|---|---|
| Price | $31.49–$39.99 |
| Type | Guitar Tuning Machines |
| Options | 2 colors, 1 packaging |
| Availability | In stock at guyker.com |
| Coupon | ALEKSANDRBODNAR |
| Returns | Items can be returned within 30 days of purchase in original condition with packaging… |
Price check
At $31.49, the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… is mid-range for Guyker, whose 922 listed products run $0.98 to $367.49.
Similar items from other brands we track run $12.99 to $53.99.
Frequently asked questions
Do these fit a Stratocaster or Telecaster?
They are made for ST and TL style guitars with 9 mm peg holes. Measure your holes, since some vintage-style necks use different sizes.
Are they locking?
Yes, they lock the string to help with string changes and tuning stability.
How much is the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine…?
Guyker lists it at $31.49–$39.99 on guyker.com. We refresh prices throughout the day, but always confirm the final price at checkout.
Is there a coupon code for the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine…?
Guyker's store-wide code ALEKSANDRBODNAR can be entered at checkout on guyker.com. Guyker sets the discount, and some items or sale prices may be excluded.
What is Guyker's return policy?
Items can be returned within 30 days of purchase in original condition with packaging intact; you cover shipping on returns for personal reasons. Defects must be reported within 48 hours, and Guyker covers shipping on approved replacements.
How long does Guyker take to ship?
Standard shipping is free on orders of $59.99 or more and $5.99 below that. Orders take 1 to 3 business days to process and 7 to 14 business days in transit for the main zone, which includes the US, Canada, Australia, France and Germany.
Does the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… come with a warranty?
Guyker's published warranty terms: A one-year limited warranty covers defects in workmanship or materials for the original purchaser of parts bought on guyker.com. Guyker repairs or replaces at its discretion, and the buyer pays any shipping on the claim.
What options does the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… come in?
Color: Gold, Nickel. Packaging: 6R (For Right handed guitar).
Where can I buy the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine…?
The Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… is sold directly by Guyker on guyker.com. The Shop now button on this page goes straight to the product there, and code ALEKSANDRBODNAR can be applied at checkout.
Is the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… in stock?
Yes. Guyker lists it as in stock on guyker.com as of our latest check. Stock and prices refresh throughout the day.
Is Guyker a legit store?
Guyker is a good fit for players and hobby builders who want budget-friendly tuners, bridges and small hardware with clearly listed specs. Skip it if you need a part tomorrow, since standard delivery is quoted at 7 to 14 business days after 1 to 3 days of processing. Measure your peg holes, string spacing and post spacing before ordering, because fit is the whole game with replacement hardware. Our full Guyker review covers shipping, returns and what to check before ordering.
Is the Ready to Ship (US) | GK-55NSP-IV Lock String Tuners Machine… expensive?
At $31.49 it is mid-range for Guyker ($0.98 to $367.49 across 922 products), and similar items from other brands run $12.99 to $53.99.
