Overview
The slotted nut is a specialized fastener designed to secure components in mechanical assemblies where precise locking is essential. Characterized by its distinctive slots cut into the top portion, the slotted nut allows for the insertion of a cotter pin or wire, providing a reliable locking mechanism that prevents loosening due to vibration or rotational forces. Manufactured through precision machining or cold forging processes, the slotted nut is typically produced from high-strength materials such as carbon steel, stainless steel, or alloy steel, ensuring durability and resistance to corrosion. Its design facilitates easy installation and removal while maintaining a secure hold, making it suitable for applications requiring frequent adjustments or maintenance. The slotted nut’s geometry and material selection contribute to its ability to withstand high torque and shear forces, making it an indispensable component in automotive, aerospace, and heavy machinery industries where safety and reliability are paramount.
In addition to its robust construction, the slotted nut offers versatility across various industrial sectors, including construction equipment, agricultural machinery, and marine applications. The slots enable the use of locking devices that enhance the fastener’s performance under dynamic loads, reducing the risk of component failure. The manufacturing process emphasizes tight tolerances and consistent thread quality to ensure compatibility with corresponding bolts and studs, which is critical for maintaining assembly integrity. The slotted nut’s combination of strength, locking capability, and ease of use provides significant advantages in environments subject to vibration and thermal cycling. Its ability to maintain secure fastening under challenging conditions contributes to extended service life and reduced maintenance costs, making the slotted nut a preferred choice for engineers and designers focused on safety and efficiency in mechanical fastening solutions.
| Product Type | Slotted Nut |
| Head Style | Hexagonal with Slots |
| Manufacturing Process | Cold Forged and Machined |
| Thread Type | Unified National Coarse (UNC) or Unified National Fine (UNF) |
| Common Materials | Carbon Steel, Stainless Steel, Brass |
| Available Sizes | #4 to 1-1/2 inch diameter |
| Strength Features | High tensile strength with secure locking capability using cotter pins |
| Typical Applications | Automotive, Machinery, Aerospace, and Heavy Equipment for secure fastening with locking |
| Surface Finishes | Zinc Plated, Cadmium Plated, Black Oxide, Plain |
| Standards | ASME B18.2.2, DIN 935 |
| Customization | Custom Sizes, Materials, Threads & Surface Finishes Available |
Slots allow cotter pins to lock the nut firmly, preventing loosening in high-vibration environments.
Manufactured from high-grade steels ensuring strength and resistance to wear and fatigue.
Available in stainless steel variants for enhanced resistance in harsh environments.
Accurate threading ensures easy installation and reliable fit with corresponding bolts.
Wide diameter and length ranges accommodate diverse application requirements.
Meets ASTM and DIN standards for quality and interchangeability.
| Product Type | Slotted Nut |
| Thread Type | Metric Coarse and Fine |
| Diameter Range | M5 to M36 |
| Length Range | 5 to 50 mm |
| Available Materials | Carbon Steel, Stainless Steel, Alloy Steel |
| Manufacturing Standards | ASTM A194, DIN 935 |
| Surface Finish | Zinc Plated, Plain, Hot-Dip Galvanized |
| Diameter (mm) | Width Across Flats (mm) | Height (mm) | Slot Width (mm) |
|---|---|---|---|
| M5 | 8 | 4 | 1.5 |
| M12 | 19 | 10 | 3 |
| M24 | 36 | 20 | 5 |
| M36 | 55 | 30 | 7 |
