Pipex.ai is a B2B Marketplace for precision-engineered components, specializing in custom fasteners, industrial parts, and intelligent supply chain solutions. We connect manufacturers, engineers, and OEMs with verified suppliers globally. Our platform helps teams streamline sourcing, reduce lead times, and ensure engineering compliance at every stage. One of the most requested tools on our site is an accurate and easy-to-use Custom Fasteners Weight Chart in kg essential for any project where weight calculations matter.
Whether you're working with metric components or need a fully exportable Custom Fasteners Dimension Chart in mm kg pdf, this post is your go-to guide.
Why Weight Matters in Fastener Selection
The total weight of fasteners can impact:
- Structural integrity
- Shipping and logistics costs
- Assembly balance
- Performance in dynamic systems
While off-the-shelf fasteners often have published weight data, custom fasteners made to unique specifications in terms of material, thread, and head type require tailored data. Engineers must either calculate weight from scratch or reference a reliable Custom Fasteners Weight Chart.
Factors Influencing Fastener Weight
Before diving into the chart, it’s important to understand the variables that affect fastener weight:
- Material Type:
- Steel, stainless steel, titanium, aluminum, and brass all have different densities.
- For example, steel has a density of ~7.85 g/cm³, while titanium is ~4.5 g/cm³.
- Thread and Shank Diameter:
Larger diameters mean more material, and thus more weight. - Length of the Fastener:
A longer bolt or screw will weigh more due to increased volume. - Head Style:
Hex heads, socket caps, and flat heads all have different volumes and surface area.
Sample Custom Fasteners Weight Chart in kg
Here’s a simplified Custom Fasteners Weight Chart in kg based on common carbon steel hex bolts. This data is ideal for anyone working with custom fasteners in mm and can be expanded into a downloadable Custom Fasteners in mm kg pdf format for your project documentation.
Size | Length (mm) | Weight (kg/100 pcs) | Length (mm) | Weight (kg/100 pcs) | Length (mm) | Weight (kg/100 pcs) |
M5 | 10 | 0.60 | 20 | 0.80 | 30 | 1.00 |
M6 | 10 | 0.90 | 20 | 1.50 | 30 | 2.10 |
M8 | 10 | 2.10 | 25 | 3.20 | 40 | 4.50 |
M10 | 20 | 4.50 | 40 | 6.20 | 60 | 8.50 |
M12 | 30 | 7.20 | 50 | 9.20 | 70 | 11.80 |
M14 | 40 | 12.00 | 60 | 14.50 | 80 | 17.00 |
M16 | 40 | 15.80 | 60 | 18.20 | 80 | 21.70 |
M18 | 50 | 19.50 | 70 | 22.00 | 90 | 25.50 |
M20 | 60 | 25.40 | 80 | 28.90 | 100 | 32.40 |
M22 | 60 | 29.80 | 80 | 33.20 | 100 | 36.70 |
M24 | 60 | 35.00 | 80 | 39.00 | 100 | 43.00 |
M27 | 60 | 44.00 | 80 | 49.00 | 100 | 54.00 |
M30 | 60 | 54.00 | 80 | 59.50 | 100 | 65.00 |
Note: This chart assumes carbon steel. For stainless steel or titanium, multiply or divide based on density ratios. Always verify with your manufacturer for precise weight.
For a complete breakdown of lengths, diameters, and head dimensions, you can also refer to our Custom Fasteners Size Chart and export the data as a Custom Fasteners Dimension Chart in mm kg pdf.
How to Calculate Custom Fastener Weight Yourself
If your custom fasteners aren’t listed in charts, here’s how to manually estimate the weight:
- Calculate Volume:
Use CAD drawings or formulas for cylindrical shapes (V = πr²h). - Multiply by Material Density:
Convert volume (cm³) to grams using the material’s density. - Convert to kg (if needed):
1000 grams = 1 kg
Practical Use Cases for Engineers
- Load Calculations: For aerospace and automotive parts where weight tolerance is tight.
- Shipping Estimates: Logistics planners can avoid under- or overestimating freight costs.
- Assembly Automation: Robotic systems rely on consistent part weights for gripping and alignment.
- Inventory Management: Helps in estimating bulk orders and warehouse planning.
How Often Should You Update Your Weight Chart?
If you work in fast-paced industries like aerospace, energy, or advanced manufacturing, it’s smart to update your Custom Fasteners Weight Chart at least once a year. Material availability, density tolerances, and manufacturing methods may shift slightly, especially when working with suppliers across different regions or sourcing non-standard materials.
A well-maintained Custom Fasteners Weight Chart, along with a reliable Custom Fasteners Size Chart and Custom Fasteners in mm kg pdf, can save countless hours in engineering design and procurement planning. While this reference is a solid starting point, every custom project is unique. Always consult with your fastener manufacturer or supplier for precise specifications based on your custom drawings and material selections.
At Pipex.ai, we’re committed to providing accurate, engineer-friendly resources and intelligent tools to simplify sourcing and design decisions. Explore our platform to download the full Custom Fasteners Dimension Chart in mm kg pdf and get instant support for your next project.