Product Specifications
| Model / Specification | M4–M48 |
| Material | Carbon Steel |
| Nominal diameter d |
M4 | M5 | M6 | M8 | M10 | M12 | (M14) | M16 | (M18) | |
| P | Pitch | 0.7 | 0.5 | 1 | 1.25 | 1.5 | 1.75 | 2 | 2 | 2.5 |
| n | Nom | 5 | 6 | 8 | 10 | 12 | 14 | 16 | 18 | 20 |
| Max | 4.7 | 5.7 | 7.7 | 9.7 | 11.7 | 13.7 | 15.7 | 17.7 | 19.7 | |
| Min | 4.5 | 5.5 | 7.5 | 9.5 | 11.4 | 13.4 | 15.4 | 17.4 | 19.4 | |
| s | Nom | 9 | 10 | 13 | 15 | 18 | 22 | 25 | 28 | 32 |
| Max | 9.29 | 10.29 | 13.35 | 15.35 | 18.35 | 22.42 | 25.42 | 28.42 | 32.5 | |
| Min | 8.71 | 9.71 | 12.65 | 14.65 | 17.65 | 21.58 | 24.58 | 27.58 | 31.5 | |
| k | Nom | 2.5 | 4 | 6 | 6 | 7 | 8 | 9 | 10 | 12 |
| Max | 2.7 | 4.24 | 6.29 | 6.29 | 7.29 | 8.29 | 9.29 | 10.29 | 12.35 | |
| Min | 2.3 | 3.76 | 5.71 | 5.71 | 6.71 | 7.71 | 8.71 | 9.71 | 11.65 | |
| h | Nom | 6.5 | 8 | 10 | 12 | 14 | 16 | 18 | 20 | 24 |
| Max | 6.79 | 8.29 | 10.29 | 12.35 | 14.35 | 16.35 | 18.35 | 20.42 | 24.42 | |
| Min | 6.21 | 7.71 | 9.71 | 11.65 | 13.65 | 15.65 | 17.65 | 19.58 | 23.58 | |
| Nominal diameter d |
M20 | (M22) | M24 | (M27) | M30 | M36 | M42 | M48 | |
| P | Pitch | 2.5 | 2.5 | 3 | 3 | 3.5 | 4 | 4.5 | 5 |
| n | Nom | 22 | 24 | 28 | 32 | 36 | 42 | 48 | 54 |
| Max | 21.7 | 23.7 | 27.7 | 31.6 | 35.6 | 41.6 | 47.6 | 53.6 | |
| Min | 21.4 | 23.4 | 27.4 | 31.3 | 35.3 | 41.3 | 47.3 | 53.3 | |
| s | Nom | 34 | 40 | 43 | 50 | 53 | 64 | 75 | 85 |
| Max | 34.5 | 40.5 | 43.5 | 50.5 | 53.6 | 64.6 | 75.6 | 85.7 | |
| Min | 33.5 | 39.5 | 42.5 | 49.5 | 52.4 | 63.4 | 74.4 | 84.3 | |
| k | Nom | 14 | 16 | 18 | 20 | 23 | 28 | 32 | 36 |
| Max | 14.35 | 16.35 | 18.35 | 20.42 | 23.42 | 28.42 | 32.5 | 36.5 | |
| Min | 13.65 | 15.65 | 17.65 | 19.58 | 22.58 | 27.58 | 31.5 | 35.5 | |
| h | Nom | 28 | 32 | 36 | 40 | 44 | 52 | 60 | 70 |
| Max | 28.42 | 32.5 | 36.5 | 40.5 | 44.5 | 52.6 | 60.6 | 70.6 | |
| Min | 27.58 | 31.5 | 35.5 | 39.5 | 43.5 | 51.4 | 59.4 | 69.4 | |
Product Introduction — T-Slot Nut
The T-slot nut (T-groove nut) is a specialized fastener produced according to the JIS B 1167-1987 standard, shaped like a “T” and designed specifically for use with T-shaped slots. The nut material is typically high-quality medium-carbon steel S45C, which after heat treatment offers high strength and wear resistance. During installation, the T-slot nut is slid in from the slot end or rotated into the groove, and then combined with a bolt for quick connection and position adjustment. It is widely used in machine tools, aluminum profile frames, and various jigs and fixtures.
One Product Features
T-shaped structural design: The bottom is T-shaped, fitting smoothly into the T-slot, and it is not prone to rotation after installation, providing stable positioning.
Premium material: Mainly made of S45C high-quality carbon structural steel, treated by quenching and tempering or hardening, offering high strength and hardness.
Complete specifications: Compliant with JIS B 1167 standard, with standardized slot width and thread size, providing excellent versatility.
Diverse surface treatments: Common treatments include blackening, zinc plating, and nickel plating, offering certain rust resistance.
Flexible mating: Can slide freely along the slot length, enabling stepless position adjustment.
Two Product Advantages
Convenient installation: Can be installed directly from the T-slot end or rotated into the groove — no pre-embedded nut in the slot is needed.
Flexible adjustment: The nut can slide within the T-slot, allowing workpiece position to be adjusted at any time, improving assembly efficiency.
Strong load-bearing capacity: The T-shaped structure has a large contact area with the slot walls; combined with high-strength bolts, it can withstand considerable tensile force.
Excellent anti-rotation effect: The nut bottom sits in the groove, preventing it from rotating during tightening, making operation effortless.
High versatility: Conforms to standard dimensions, applicable to most standard T-slots with good interchangeability.
Three Application Areas
Machine tool equipment: Workpiece clamping and fixing on the tables of milling machines, drilling machines, and lathes.
Aluminum profile frames: Machine frames, protective covers, and assembly line workbenches built with industrial aluminum profiles.
Jigs and fixtures: Used for quick positioning and clamping in various specialized fixtures, gauges, and welding jigs.
Automation equipment: Connections in conveyor lines, robot brackets, and sensor mounting seats.
Display and decoration projects: Connection and fixing in display racks, exhibition booths, railings, and partition structures.
