Skip to product information
1 of 3


Genuine Sperzel Trim Lok Locking Machine Heads Tuners - Chrome 6 in line

Genuine Sperzel Trim Lok Locking Machine Heads Tuners - Chrome 6 in line


Regular price £99.99
Regular price Sale price £99.99
Sale Sold out

Out of stock

Shipping & Returns

Order before 3pm for same day despatch Monday-Friday

Free shipping on UK orders over £199*

See our full shipping/returns options here

Original Sperzel Trim-lok machine heads 6 in line
With Staggered posts

Sperzel tuning keys offer a unique design and precise machining tolerances to eliminate shaft wobble and provide minimum backlash and endplay, which greatly reduce your guitar's tuning problems. Sperzel's housing extends further up the shaft with the bushing threads on the outside, keeping the string post solid.

All Trim-Lok models are easily reversible, allowing conversion to left-handed or custom configurations. Sperzel has been manufacturing staggered string posts since the late 1970s, allowing for better pull through the nut and reducing the use of string trees on six-in-line guitars with flathead stocks.

Quick, simple, reliable re-stringing

The locking feature eliminates the need for multiple string wraps, and trem users no longer need a locking nut that deadens string sustain and all annoying Allen screws and wrenches (added weight). Tired of tying strings? This is the answer. This model is proven to hold strings tightly, allowing the guitar to stay in tune to improve playing enjoyment. The Trim-Lok is a mechanical type locking system that can be used on ANY guitar, including non-trem or acoustic.

Simply insert your string into the hole and pull all the way through the post until tight, while holding string screw locking knob in until string is locked to post. Do not over-tighten; finger tight will do. Then, tune to pitch (Approximately 1/2 turn with tuning button). You should be in tune; cut excess string and repeat the process for remaining strings



Locking Tuner

To fit 10mm Tuner Hole

View full details

Customer Reviews

Based on 1 review
mark burgess
Original and the best

Love these Fender strat deluxe had them on sadly they moved to Schaller as Sperzal could not keep up with demand . 12:1 ratio is not tgd best but they are rock solid fo not slip or wobble snd the design means the pin wheel cannot fall off like others . NW guitars need to stock the drill templates for these please . Either sperzal or multi brand siting the pin is a nightmare unless you are used to it . Easy with the template ! Drill