The formula
NIKKI derives static axial load from the calculation method published in the catalogue's technical information:
F = A × Sh× n
- F
- is the static axial load
- A
- is the area of each thread
- Sh
- is the allowed shearing stress, applied with a safety factor of 4
- n
- is the number of effective threads
In plain terms: the more thread engaged (bigger thread area, more threads in contact), the more axial load the joint carries, and we divide the material's shear strength by four before using it, which is where the built-in margin comes from.
The allowed shearing stress Sh follows from the locknut material and its heat treatment. Our locknuts are alloy steel (JIS SCM440 / DIN 42CrMo4 / AISI 4140), quenched and tempered to HRC 28–32. From that hardness we derive the shear strength and apply the safety factor of 4, giving the Sh used in the figures below.
Find your axial load
Enter a thread size or pick one from the list to see our reference static axial load. This is a reference figure from our published data. For the exact value in your application, talk to our team.
- M5 · 38 kN
- M6 · 45 kN
- M8 · 60 kN
- M10 · 75 kN
- M12 · 90 kN
- M14 · 100 kN
- M15 · 110 kN
- M16 · 120 kN
- M17 · 130 kN
- M18 · 140 kN
- M20 · 150 kN
- M22 · 160 kN
- M24 · 180 kN
- M25 · 190 kN
- M26 · 200 kN
- M28 · 210 kN
- M30 · 220 kN
- M32 · 240 kN
- M35 · 260 kN
- M38 · 280 kN
- M40 · 300 kN
- M42 · 320 kN
- M45 · 340 kN
- M48 · 360 kN
- M50 · 380 kN
- M52 · 390 kN
- M55 · 410 kN
- M58 · 440 kN
- M60 · 450 kN
- M62 · 460 kN
- M65 · 490 kN
- M68 · 510 kN
- M70 · 520 kN
- M72 · 540 kN
- M75 · 560 kN
- M80 · 600 kN
- M85 · 640 kN
- M90 · 680 kN
- M95 · 710 kN
- M100 · 750 kN
- M105 · 790 kN
- M110 · 820 kN
- M115 · 860 kN
- M120 · 900 kN
- M125 · 940 kN
- M130 · 980 kN
- M135 · 1,000 kN
- M140 · 1,000 kN
- M145 · 1,100 kN
- M150 · 1,100 kN
- M155 · 1,200 kN
- M160 · 1,200 kN
- M165 · 1,200 kN
- M170 · 1,300 kN
- M180 · 1,400 kN
- M190 · 1,400 kN
- M200 · 1,500 kN
- M210 · 1,600 kN
- M220 · 1,600 kN
- M230 · 1,700 kN
- M240 · 1,800 kN
- M250 · 1,900 kN
- M260 · 2,000 kN
Reference value only. Confirm the exact figure for your application with our team, or contact us.
This is static axial (thread) capacity, not the screw clamping/holding force.
Start typing a thread size (the number after “M”), or open the list to browse.
Questions About Static Axial Load
NIKKI publishes static axial load as a reference, calculated with a safety factor of 4, not as a guaranteed limit for a specific machine. The questions below are the ones that come up when using the figure.
Contact UsFrom NIKKI's published static-axial-load data: the formula F = A·Sh·n and the reference curve in the catalogue's technical information, where F is axial load, A the thread area, Sh the allowed shearing stress (with a safety factor of 4), and n the number of effective threads. The tool returns the catalogue reference for each size.
No. This is the static load the thread engagement can carry — a thread-capacity figure. It is not the axial clamping (holding) force the set or clamping screws generate; NIKKI does not publish a clamping-force figure. If you need holding force for your application, send the details to our team.
Treat it as a reference for sizing and comparison, not a final rating. It assumes static load and even thread engagement, and the catalogue marks it "for reference only." For a verified figure at your load, speed and mounting, contact us and our engineers will advise.
NIKKI's published curve covers M20 to M200. The tool still returns a figure for smaller and larger threads by extending the same slope, but treat those as estimates and confirm them with our team.
