LockOne


LockOne® is a revolutionary positive locking fastener designed to prevent a standard nut from loosening free under vibration. Upon installation, LockOne coils stretch, providing a superior locking force. Unlike nuts with nylon or locking compounds, 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! LockOne's lightweight design is perfect for use on weight sensitive applications. KATO LockOne replaces nylon nuts, double nuts (jam nuts), cotter pins, safety-wire, and thread locking compounds.
See LockOne in Action
LockOne "How To" Guide
Thread Size | LockOne Pack | Qty Per Pack | 12PT-Socket (Ref.) |
---|---|---|---|
Unified Coarse | |||
1/4-20 | KLOC-4P | 10 | 7/16 |
5/16-18 | KLOC-5P | 10 | 1/2 |
3/8-16 | KLOC-6P | 10 | 9/16 |
7/16-14 | KLOC-7P | 10 | 11/16 |
1/2-13 | KLOC-8P | 10 | 3/4 |
5/8-11 | KLOC-10P | 6 | 15/16 |
3/4-10 | KLOC-12P | 2 | 1-1/8 |
7/8-9 | KLOC-14P | 2 | 1-5/16 |
1-8 | KLOC-16P | 2 | 1-1/2 |
Unified Fine | |||
10-32 | KLOF-3P | 10 | 3/8 |
1/4-28 | KLOF-4P | 10 | 7/16 |
5/16-24 | KLOF-5P | 10 | 1/2 |
3/8-24 | KLOF-6P | 10 | 9/16 |
7/16-20 | KLOF-7P | 10 | 11/16 |
1/2-20 | KLOF-8P | 10 | 3/4 |
5/8-18 | KLOF-10P | 6 | 15/16 |
3/4-16 | KLOF-12P | 2 | 1-1/8 |
1-12 | KLOF-16P | 2 | 1-1/2 |
Metric Sizes | |||
M4X.7 | KLOM-4P | 10 | 7mm |
M5X.8 | KLOM-5P | 10 | 8mm |
M6X1 | KLOM-6P | 10 | 10mm |
M8X1.25 | KLOM-8P | 10 | 13mm |
M10X1.5 | KLOM-10P | 10 | 17mm |
M12X1.75 | KLOM-12P | 10 | 19mm |
M16X2 | KLOM-16P | 6 | 24mm |
M20X2.5 | KLOM-20P | 2 | 30mm |
M22X2.5 | KLOM-22P | 2 | 32mm |
M24X3 | KLOM-24P | 2 | 36mm |
LockOne Master Kits

Thread Size | Qty Per Pack | 12PT-Socket (Ref.) |
---|---|---|
Unified Coarse | ||
1/4-20 | 10 | 7/16 |
5/16-18 | 10 | 1/2 |
3/8-16 | 10 | 9/16 |
7/16-14 | 10 | 11/16 |
1/2-13 | 10 | 3/4 |
5/8-11 | 10 | 15/16 |
3/4-10 | 6 | 1-1/8 |
7/8-9 | 4 | 1-5/16 |
1-8 | 2 | 1-1/2 |

Thread Size | Qty Per Pack | 12PT-Socket (Ref.) |
---|---|---|
Metric Sizes | ||
M4X.7 | 10 | 7mm |
M5X.8 | 10 | 8mm |
M6X1 | 10 | 10mm |
M8X1.25 | 10 | 13mm |
M10X1.5 | 10 | 17mm |
M12X1.75 | 10 | 19mm |
M16X2 | 6 | 24mm |
M20X2.5 | 4 | 30mm |
M22X2.5 | 4 | 32mm |
M24X3 | 2 | 36mm |