Key-Locking Threaded Inserts (Type KL Series)
Key-Locking Threaded Inserts Core Features
AVIC Flight's Key-Locking Threaded Inserts provide permanent, vibration-resistant threads in soft metals and composite materials. The patented locking key mechanism prevents rotation and loosening under extreme dynamic loads.
Key Features & Benefits
Technical Specifications
Parameter |
Specification |
Materials |
Stainless Steel (AISI 304/316), Inconel 718 |
Standards |
NASM 21000, DIN 7961, GJB 119.3B |
Size Range |
M3-M24 (Custom sizes to 2") |
Temp Range |
-200°C to +650°C |
Locking Force |
25% higher than helical wire inserts |
Why Choose Key Lock Inserts?
Key locking Thread Insert Parameters
Metric size -Thin wall key locking thread insert | |||||||
|
Internal Thread |
External Thread |
Length (mm) |
Tap Drill (mm) |
Thread Tap (mm) |
Tap Depth (mm) |
Removal Dril (mm) |
Removal Depth (mm) |
M5×0.8 |
M8×1.25 |
8.0 |
6.9 |
M8×1.25 |
9.5 |
5.50 |
4.00 |
M6×1.0 |
M10×1.25 |
10.0 |
8.8 |
M10×1.25 |
11.5 |
7.50 |
4.75 |
M8×1.25 |
M12×1.25 |
12.0 |
10.8 |
M12×1.25 |
13.5 |
9.50 |
4.75 |
M8×1.0 |
M12×1.25 |
12.0 |
10.8 |
M12×1.25 |
13.5 |
9.50 |
4.75 |
M10×1.5 |
M14×1.5 |
14.0 |
12.8 |
M14×1.5 |
15.5 |
11.50 |
4.75 |
M10×1.25 |
M14×1.5 |
14.0 |
12.8 |
M14×1.5 |
15.5 |
11.50 |
4.75 |
M12×1.75 |
M16×1.5 |
16.0 |
14.75 |
M16×1.5 |
17.5 |
13.50 |
4.75 |
M12×1.25 |
M16×1.5 |
16.0 |
14.75 |
M16×1.5 |
17.5 |
13.50 |
4.75 |
Metric size -Heavy duty key locking thread insert | |||||||
|
Internal Thread
|
External Thread |
Length (mm) |
Tap Drill (mm) |
Thread Tap (mm) |
Tap Depth (mm) |
Removal Dril (mm) |
Removal Depth (mm) |
M4×0.7 |
M8×1.25 |
8.0 |
6.9 |
M8×1.25 |
9.5 |
5.50 |
4.00 |
M5×0.8 |
M10×1.25 |
10.0 |
8.8 |
M10×1.25 |
12.5 |
7.50 |
4.75 |
M6×1.0 |
M12×1.25 |
12.0 |
10.8 |
M12×1.25 |
14.5 |
9.50 |
4.75 |
M8×1.25 |
M14×1.5 |
14.0 |
12.8 |
M14×1.5 |
16.5 |
11.50 |
4.75 |
M8×1.0 |
M14×1.5 |
14.0 |
12.8 |
M14×1.5 |
16.5 |
11.50 |
4.75 |
M10×1.5 |
M16×1.5 |
16.0 |
14.75 |
M16×1.5 |
18.5 |
13.50 |
4.75 |
M10×1.25 |
M16×1.5 |
16.0 |
14.75 |
M16×1.5 |
18.5 |
13.50 |
4.75 |
M12×1.75 |
M18×1.5 |
18.0 |
16.75 |
M18×1.5 |
20.5 |
15.50 |
4.75 |
M12×1.25 |
M18×1.5 |
18.0 |
16.75 |
M18×1.5 |
20.5 |
15.50 |
4.75 |
M14×2.0 |
M20×1.5 |
20.0 |
18.75 |
M20×1.5 |
22.5 |
17.50 |
4.75 |
M14×1.5 |
M20×1.5 |
20.0 |
18.75 |
M20×1.5 |
22.5 |
17.50 |
4.75 |
M16×2.0 |
M22×1.5 |
22.0 |
20.5 |
M22×1.5 |
24.5 |
17.75 |
6.35 |
M16×1.5 |
M22×1.5 |
22.0 |
20.5 |
M22×1.5 |
24.5 |
17.75 |
6.35 |
M18×1.5 |
M24×1.5 |
24.0 |
22.5 |
M24×1.5 |
26.5 |
19.75 |
6.35 |
M20×2.5 |
M30×2.0 |
30.0 |
28.0 |
M30×2.0 |
34.5 |
25.75 |
6.35 |
M20×1.5 |
M30×2.0 |
30.0 |
28.0 |
M30×2.0 |
34.5 |
25.75 |
6.35 |
M22×1.5 |
M32×2.0 |
32.0 |
30.0 |
M32×2.0 |
36.5 |
27.75 |
6.35 |
M24×3.0 |
M33×2.0 |
33.0 |
31.0 |
M33×2.0 |
37.5 |
28.75 |
6.35 |
M24×2.0 |
M33×2.0 |
33.0 |
31.0 |
M33×2.0 |
37.5 |
28.75 |
6.35 |