A Superior Locking Force
KATO’s LockOne is a revolutionary positive locking product designed to prevent a standard nut from loosening under vibration. Upon tightening, the LockOne coils stretch, providing superior locking force. Unlike nuts with nylon or locking compounds, the KATO LockOne does not degrade with each use. Due to the unique LockOne design, the assembly is FOD free. Save on assembly cost! No expensive replacement nuts! The LockOne lightweight design is perfect for use on weight sensitive applications.
KATO LockOne replaces cotter pins, safety-wire, Loctite®, double nuts (jam nut), nylon nuts, castellated nuts, Nord-Lock® washers, Hardlock® nut, and other types of locking fasteners.
LockOne fasteners underwent 30,000 cycle accelerated vibration testing in accordance with NAS3350 (National Aerospace Specification for impact type vibration test). In fact, even after 180,000 cycles the LockOne assembly remained tight! LockOne can be easily substituted into existing designs. LockOne is reusable, does not degrade with each cycle.
Designing in LockOne couldn’t be easier! Simply account for an extra three threads to the bolt length. That’s it! It’s compact nature allows for ease of use in designs with weight restrictions and maintenance schedules. When using any fastener with a degrading locking feature such as a locking compound or nylon built into the nut, replacements are needed during any maintenance as they can only be used once. With LockOne, this positive locking feature can be simply removed and reused. No extra stock needed!
KATO’s LockOne is fast and easy to install. No locking compounds to apply. A standard dodecagonal (12-Point) socket installs the LockOne at the same time as the nut, minimizing installation time. LockOne is adjustable and removable after installation with the same 12-point socket.
KATO’s LockOne is designed for harsh environments, without using any hazardous chemical coatings. Made from 304 Stainless Steel WPB, the LockOne is naturally corrosion resistant.
LockOne surpasses the testing requirements of NAS3350 (National Aerospace Specification for impact type vibration test).
Once positioned in front of nut, LockOne engages the bolt along pitch diameter inducing spring forces axially and radially. These forces hold LockOne in place, preventing bolts and nuts from loosening under vibration.
Example of a KATO LockOne part number:
KLO M - 4
1 2 3
| 1 Tool Type |
2 Thread Designation |
3 Size Designation |
|---|---|---|
| KLO - KATO LockOne | C - Unified Coarse M - Metric |
See Table |
Please Note:
| Thread Size | KATO Part Number | ||||
|---|---|---|---|---|---|
| Unified Sizes | |||||
| 1/4-20 | KLOC-4 | ||||
| 5/16-18 | KLOC-5 | ||||
| 3/8-16 | KLOC-6 | ||||
| 1/2-13 | KLOC-8 | ||||
| Metric Sizes | |||||
| M4X.7 | KLOM-4 | ||||
| M5X.8 | KLOM-5 | ||||
| M6X1 | KLOM-6 | ||||
| M8X1.25 | KLOM-8 | ||||
| M10X1.5 | KLOM-10 | ||||
| M12X1.75 | KLOM-12 | ||||
| M16X2 | KLOM-16 | ||||
| M20X2.5 | KLOM-20 | ||||
| M22X2.5 | KLOM-22 | ||||
| M24X3 | KLOM-24 | ||||
All dimensions are for reference only.
| KATO Part Number | Thread Size | Technical Data | Weight | |||
|---|---|---|---|---|---|---|
| S | H | w | t | |||
| Unified Sizes (in.) | ||||||
| KLOC-4 | 1/4-20 | 0.48 | 0.11 | 0.03 | 0.03 | 0.80 g |
| KLOC-5 | 5/16-18 | 0.50 | 0.11 | 0.03 | 0.03 | 0.80 g |
| KLOC-6 | 3/8-16 | 0.55 | 0.13 | 0.04 | 0.03 | 1.30 g |
| KLOC-8 | 1/2-13 | 0.75 | 0.16 | 0.05 | 0.04 | 3.00 g |
| Metric Sizes (mm.) | ||||||
| KLOM-4 | M4X.7 | 7 | 1.4 | 0.50 | 0.35 | 0.24 g |
| KLOM-5 | M5X.8 | 8 | 1.6 | 0.60 | 0.40 | 0.24 g |
| KLOM-6 | M6X1 | 10 | 2.0 | 0.70 | 0.50 | 0.45 g |
| KLOM-8 | M8X1.25 | 13 | 2.5 | 0.88 | 0.63 | 0.95 g |
| KLOM-10 | M10X1.5 | 17 | 3.0 | 1.05 | 0.75 | 1.79 g |
| KLOM-12 | M12X1.75 | 19 | 3.5 | 1.23 | 0.88 | 2.83 g |
| KLOM-16 | M16X2 | 24 | 4.0 | 1.40 | 1.00 | 4.78 g |
| KLOM-20 | M20X2.5 | 30 | 5.0 | 1.75 | 1.25 | 9.39 g |
| KLOM-22 | M22X2.5 | 32 | 5.0 | 1.75 | 1.25 | 10.12 g |
| KLOM-24 | M24X3 | 26 | 6.0 | 2.10 | 1.50 | 16.21 g |
| Easy Installations | Re-Usability | Single Component | High Vibration Strength | Low Price | Non-Destructive | |
|---|---|---|---|---|---|---|
![]() LockOne |
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![]() Castellated Nut |
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![]() Nylon Nuts |
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![]() Pin-Lock Nut |
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![]() Jam Nut |
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![]() Serrated Face Nut |
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![]() Custom Lock Nut |
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![]() Locking Compound |