(!)NOTE : Windows 7 users won’t be able to use some latest features of eCatalog/WOS since Microsoft is ending support for Windows 7 on 14 Jan, 2020. Please upgrade your system for uninterrupted services.
Select part number to Order Now/ Add to Cart
Caution
[Shape] Upper nut (convex type) and lower nut (concave type) are available.
· The top nut is perfectly circular with respect to the bolt, but the bottom nut has been eccentrically machined off-center with respect to the bolt.
[Features] Since the lower nut is eccentric, tightening the upper nut will apply a lateral force due to the wedging action. Friction to this male thread prevents loosening.
· Can be manually tightened to your desired position.
· Can be used repeatedly.
[Material] Steel/S45C/SCM435 (H)
[Surface Processing] Parkerizing (Phosphate Coating) / Trivalent White
[Nominal of Thread (M)] 8/10/12/14/16/18/22/24/30/33/36/39/45/48/52/56/64
[Application/Function] Loosening prevention
[Thread Ridge Type] Metric Coarse
[Loosening Prevention Details] Hard Lock Nut
(Unit: mm)
Dimensional drawing
S | H (Lower Nut) | H1 (Upper Nut) | B (Width across Flats) | C | l (Overall Height) | h | Reference Tightening Torque for Strength Category 4 kgf・cm | Weight (g) | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Nominal | Coarse | Fine Details | Standard Dimensions | Tolerance | Standard Dimensions | Tolerance | Standard Dimensions | Tolerance | Approx. | Approx. | Tolerance | Approx. | ||
M8 | 1.25 | 1.0 | 6.5 | 0 -0.58 | 6.5 | 0 -0.58 | 13 | 0 -0.7 | 15 | 11 | ±0.8 | 4.5 | 115 | 8.6 |
M14 | 2.0 | 1.5 | 11 | 0 -0.7 | 11 | 0 -0.7 | 22 | 0 -0.8 | 25.4 | 18.5 | ±1.2 | 7.5 | 650 | 39 |
M18 | 2.5 | 1.5 | 15 | 15 | 27 | 31.2 | 25.5 | 10.5 | 1500 | 80 | ||||
M22 | 2.5 | 1.5 | 18 | 18 | 32 | 0 -1.0 | 37 | 31.5 | 13.5 | 2400 | 130 | |||
M24 | 3.0 | 2.0 | 19 | 0 -0.84 | 19 | 0 -0.84 | 36 | 41.6 | 33 | ±1.8 | 14 | 2965 | 180 | |
M30 | 3.5 | 2.0 | 24 | 24 | 46 | 53.1 | 42 | 18 | 6210 | 375 | ||||
M33 | 3.5 | 2.0 | 26 | 26 | 50 | 57.7 | 46 | 20 | 8520 | 480 | ||||
M36 | 4.0 | 3.0 | 29 | 29 | 55 | 0 -1.2 | 63.5 | 50 | 21 | 10700 | 630 | |||
M39 | 4.0 | 3.0 | 31 | 0 -1.0 | 31 | 0 -1.0 | 60 | 69.3 | 54 | ±2.2 | 23 | 14000 | 935 | |
M45 | 4.5 | 4.0 | 36 | 36 | 70 | 80.8 | 63 | 27 | 21400 | 1330 | ||||
M48 | 5.0 | 4.0 | 38 | 38 | 75 | 86.5 | 67 | 29 | 25400 | 1595 | ||||
M52 | 5.0 | 4.0 | 42 | 42 | 80 | 92.4 | 75 | 33 | 32300 | 2055 | ||||
M56 | 5.5 | 4.0 | 45 | 45 | 85 | 0 -1.4 | 98.1 | 79 | 34 | 40400 | 2410 | |||
M64 | 6.0 | 4.0 | 51 | 0 -1.2 | 51 | 0 -1.2 | 95 | 110 | 89 | ±2.5 | 38 | 60300 | 3172 |
Applications, Functions | Stop loosening | Thread Type | Metric coarse | Surface Treatment | Parker |
---|---|---|---|---|---|
Locking Details | Hard Locking Bearing Nuts | Surface Treatment (Details) | Other special processings |
How can we improve?
How can we improve?
Thank you for your time.
Your feedback is essential for our continuous improvement
Privacy Policy
Thank you for your cooperation.
Thank you for your time.
Your feedback is essential for our continuous improvement
Please use the inquiry form.
Privacy Policy