
Hex Weld Nuts Weight Chart – Complete Guide with Sizes, Dimensions & Applications
April 13, 2026
Hex Cap Nuts Weight Chart – Complete Guide with Sizes, Dimensions & Applications
April 14, 2026In contemporary fabrication, sheet metal assemblies, as well as structural fastening systems, require the correct weight calculation to maintain load balance, material estimation and cost efficiency. The Weld Square Nuts Weight Chart is extremely beneficial in enabling engineers, fabricators, and procurement professionals to know the accurate weight values according to the nut size, thickness, and material composition.
These nuts are also common in areas where a permanent fastening is needed, achieved through welding, to create a strong and reliable joint. With Weld Square Nuts Weight Chart, industries can enhance better planning accuracy, save material wastage and have uniformity throughout the large-scale production processes.
What Is a Weld Square Nut?
A Weld Square Nut is a four sided screw deliberately constructed to be welded onto exposed metal to allow easy fastening of bolts where an alternate side is not readily available. They are characteristic of these nuts which contain projections or flat surfaces that allow good bonding of a weld. Weld Square Nuts is square shaped, which gives it a greater area of contact and ability to resist rotation, and therefore, is very useful in structural and heavy-duty. They are widely found in the automotive, construction and industrial fabrication markets.

Key Features
- Designed for welding applications
- Square shape for improved grip and anti-rotation
- Strong and permanent fastening solution
- Suitable for sheet metal and structural assemblies
- Available in various sizes and materials
Why Is the Weld Square Nuts Weight Chart Important?
Weld Square Nuts Weight Chart in kg mm gives correct values of weights which are critical in structural calculations, fabrication planning and procurement management. In welded assemblies, accurate weight estimation is critical for maintaining balanced loads and structural integrity. The Weld Square Nuts Weight Chart PDF has become a popular tool among many professionals for documentation, quality checks, and project approvals. A standardized Weld Square Nuts Weight Chart can reduce confusion, maximize the use of materials and enhance overall efficiency.
In heavy-duty applications, particularly when production weight, transportation design, cost estimation, and design optimization are essential, weight charts play a vital role.
DIN 928 – Square Weld Nuts – Weight Chart
| Thread d1 | b | d2 | d3 | d4 | e | h1 | h2 | m | s | Weight (7,85kg/dm3) kg/1000pcs | ||||
| tolerance | H113 | max. | min. | min. | ±0,1 | min. | max | h14 | h14 | |||||
| M4 | – | – | 0,8 | ±0,15 | 5 | 4,2 | 6,4 | 9 | 0,6 | 0,4 | 1,3 | 3,5 | 7 | 0,81 |
| M5 | – | – | 1 | 6 | 5,25 | 8,2 | 12 | 0,8 | 0,6 | 1,5 | 4,2 | 9 | 1,7 | |
| M6 | – | – | 1,2 | 7,5 | 6,3 | 9,1 | 13 | 0,8 | 0,7 | 1,8 | 5 | 10 | 2,4 | |
| M8 | M8x1 | – | 1,5 | 10 | 8,4 | 12,8 | 18 | 1 | 1,1 | 2 | 6,5 | 14 | 6,5 | |
| M10 | M10x1,25 | M10x1 | 1,8 | ±0,2 | 12,5 | 10,5 | 15,6 | 22 | 1,2 | 1,25 | 2,2 | 8 | 17 | 11,3 |
| – | – | 7/16-20 UNF-2B | 1,8 | 12,5 | 11,7 | 15,6 | 22 | 1,2 | 1,25 | 2,2 | 9 | 17 | 12,5 | |
| – | – | 7/16-20 UNF-2B | 2 | 13,5 | 11,7 | 17,4 | 25 | 1,4 | 1,75 | 3 | 9 | 19 | 16,5 | |
| M12 | M12x1,25 | M12x1,5 | 2 | 13,5 | 12,6 | 17,4 | 25 | 1,4 | 1,75 | 3 | 9,5 | 19 | 16,6 | |
| (M14) | (M14x1,5) | – | 2,5 | 16,8 | 14,7 | 20,4 | 28 | 1,4 | 1,75 | 3,2 | 11,4 | 22 | 26,7 | |
| (M16) | (M16x1,5) | – | 2,5 | 18,8 | 16,8 | 22,4 | 32 | 1,6 | 2 | 4 | 13 | 24 | ||
Weld Square Nuts – Complete Technical Overview
Weld Square Nuts are produced under international standards like DIN, ISO, and ASTM, which have the same quality and are precise to their dimension. These nuts are fabricated in such a manner that they have welding projections or flat base that allows them to be strongly attached to metal surfaces. Weld Square Nuts come in carbon steel, stainless steel, and alloy steel, all of which have excellent strength, resistance to mechanical stress, and durability. In situations where traditional fastening mechanisms are impractical, they are best suited to be used due to their design.

DIN 557 Square Nut Dimensions
| Thread Size (d) | M5 | M6 | M8 | M10 | M12 | M16 |
| Pitch (P) | 0.8 | 1 | 1.25 | 1.5 | 1.75 | 2 |
| dw min | 6.7 | 8.7 | 11.5 | 14.5 | 16.5 | 22 |
| e max | 11.3 | 14.1 | 18.4 | 22.6 | 25.4 | 33.9 |
| e min | 9.93 | 12.53 | 16.34 | 20.24 | 22.84 | 30.11 |
| m max (nominal) | 4 | 5 | 6.5 | 8 | 10 | 13 |
| m min | 3.52 | 4.52 | 5.92 | 7.42 | 9.42 | 12.3 |
| mw min | 2.5 | 3.2 | 4.1 | 5.2 | 6.6 | 8.6 |
| s max (nominal) | 8 | 10 | 13 | 16 | 18 | 24 |
| s min | 7.64 | 9.64 | 12.57 | 15.57 | 17.57 | 23.16 |
| Weight (kg/1000 pcs) | 1.31 | 2.77 | 5.5 | 10.7 | 16.3 | 38.2 |
Applications of Weld Square Nuts
The application of Weld Square Nuts is common in those industries where they have to be permanently fastened and have strong joints. These nuts are usually applied in vehicle production, sheet metal production, construction structures, heavy equipment and machinery, and industry. Having the capability of welding them directly to surfaces renders them suitable in applications that have limited access to the backside.
Their high strength and anti-rotation characteristics are advantages that Weld Square Nuts are used in the acquisition of structures and weight-bearing purposes and after that the product has long term durability and hence any stress pinched on the product particularly on the stressed side, high performance is attained.
How to Use the Weight Chart Correctly
In order to make full use of Weld Square Nuts Weight Chart, one should first determine suitable nut size and thickness according to the need of use of the nut. After selecting the dimensions, the type of material will need to be selected according to the environmental factors and the load criteria. Using Weld Square Nuts Weight Chart, the user can easily determine total weight when purchasing in bulk, schedule logistics, and balances structure. By comparing values with manufacturer specifications, one more increases the degree of accuracy and prevents inaccuracies in procurement and manufacture.

Conclusion
Weld Square Nuts Weight Chart This is a very vital tool used by engineers, fabricators and procurement specialists in the sphere of welding and building work. It gives correct weight information that aids good planning, estimation of costs, and design performance optimization. With the assistance of standardized Weld Square Nuts Weight Chart, the industries are able to improve productivity, decrease the amount of wastage of materials and provide long term consistency in fastening and fabrication procedures.
