Threaded Rod
Weight Chart
mm to kg
Why Threaded Rod Threaded Rod Weight Chart mm to kg
Threaded rod is almost always priced, quoted, and shipped by weight, not by length alone — freight cost, container loading calculations, and even per-kilogram material pricing all depend on getting the diameter-to-weight conversion right before an order goes out. Get the estimate wrong on a large project and the error compounds fast: a bill of quantities based on the wrong weight per metre can throw off a freight quote or a project budget by a meaningful margin once you’re talking about tonnes of material rather than a handful of rods.
The calculation itself is straightforward geometry — weight per metre is a function of cross-sectional area (based on nominal diameter) multiplied by material density. What changes the result meaningfully is the material: stainless steel is roughly 1% denser than carbon steel, which sounds trivial until you’re calculating the weight of a full container load, at which point that small density difference becomes a real number on a shipping invoice.
Akbar Fasteners Pvt. Ltd. manufactures threaded rod across both material types, and this chart reflects the same density figures — 7.85 g/cm³ for carbon/alloy steel, 7.93 g/cm³ for austenitic stainless (304/316) — that we use internally when quoting and packing export shipments.
Built for Real Ordering Decisions
Both Materials, Side by Side
Carbon steel and stainless steel weight shown together, so you don’t need two separate references for the same diameter.
Full M6 to M48 Coverage
Covers the diameter range used across the vast majority of construction, HVAC, and general engineering applications.
Free Downloadable PDF
Keep a copy on hand for quick reference during quoting or procurement, without needing to recalculate on the spot.
Backed by an Actual Manufacturer
The same figures we use internally to quote and pack export orders, not a generic figure pulled from an unrelated source.
Threaded Rod Weight Chart — mm to kg/m
Weight per metre for standard metric threaded rod diameters, calculated using nominal diameter and theoretical round-bar cross-sectional area. Use this for estimating, quoting, and freight planning — always confirm exact weight against your purchase order for final invoicing.
Download the full chart as a PDF
Same data, formatted for printing or filing — free, no signup required.
| Nominal Size | Diameter (mm) | Steel Weight (kg/m) | Stainless Steel Weight (kg/m) |
|---|---|---|---|
| M6 | 6 | 0.222 | 0.224 |
| M8 | 8 | 0.395 | 0.399 |
| M10 | 10 | 0.617 | 0.623 |
| M12 | 12 | 0.888 | 0.897 |
| M14 | 14 | 1.208 | 1.221 |
| M16 | 16 | 1.578 | 1.594 |
| M18 | 18 | 1.998 | 2.018 |
| M20 | 20 | 2.466 | 2.491 |
| M22 | 22 | 2.984 | 3.014 |
| M24 | 24 | 3.551 | 3.587 |
| M27 | 27 | 4.495 | 4.540 |
| M30 | 30 | 5.549 | 5.605 |
| M33 | 33 | 6.714 | 6.783 |
| M36 | 36 | 7.990 | 8.072 |
| M39 | 39 | 9.378 | 9.473 |
| M42 | 42 | 10.876 | 10.987 |
| M45 | 45 | 12.485 | 12.612 |
| M48 | 48 | 14.205 | 14.350 |
Calculated as Weight (kg/m) = (π/4) × d(mm)² × density(g/cm³) ÷ 1000, using density 7.85 g/cm³ for carbon/alloy steel and 7.93 g/cm³ for austenitic stainless steel (304/316). Figures use nominal diameter for estimation purposes — actual weight may vary slightly based on thread form, root diameter, and manufacturing tolerance. Confirm exact weight against your purchase order for final invoicing.
How to Use This Chart
Find Your Nominal Diameter
Locate the metric size (M6 through M48) matching the threaded rod diameter specified in your drawing or order.
Choose Steel or Stainless
Read across to the correct material column — the two densities differ by roughly 1%, which matters at volume.
Multiply by Total Length
Multiply the kg/m figure by your total required length in metres to estimate total weight for freight or quoting purposes.
Threaded Rod Product Range
Standard Threaded Rod
General-purpose all-thread rod in zinc-plated carbon steel for construction and general fastening.
Stainless Steel Threaded Rod
Corrosion-resistant threaded rod for outdoor, marine, and hygienic application requirements.
Alloy Steel Threaded Rod
High-strength threaded rod for structural, industrial, and pressure-rated applications.
Custom Cut & Non-Standard Lengths
Precision-cut threaded rod to your exact project dimension, reducing on-site waste and cutting time.
Standard Documentation
Prepared as standard practice for every threaded rod shipment.
Mill Test Certificate (MTC)
Heat number, chemical composition, and mechanical property verification for every lot.
Certificate of Conformance
Confirms the shipment matches the purchase order specification and grade in full.
Certificate of Origin (COO)
Confirms India as country of manufacture for destination customs purposes.
Commercial Invoice & Packing List
Itemized value, Incoterm, and detailed carton/weight breakdown, calculated using verified actual weights.
NABL Accredited Test Reports
Independent mechanical and chemical testing available on request for critical applications.
Bill of Lading
Ocean or air freight shipping document confirming carrier, mode, and consignee details.
Internationally Recognised Standards Coverage
Related Fastener Grades & Materials
Threaded Rod Wholesale Manufacturer
Bulk threaded rod supply across steel, stainless, and alloy grades for trade and commercial buyers.
View Threaded Rod →Stainless Steel 316 Fasteners
The material behind our 316 threaded rod range for marine and corrosive environments.
View SS 316 →Different Types of Nuts and Bolts
A guide to bolt head and nut designs, including matching nuts for threaded rod.
View Nut & Bolt Types →Fastener Applications By Industry
A broader guide to matching fastener material grades to the right industry and environment.
View Applications Guide →Ready to Order
at Wholesale Volume?
Use the chart to estimate your total weight, then send us the diameter, length, material, and quantity — we’ll confirm pricing and lead time. Akbar Fasteners Pvt. Ltd. responds within 24 hours.
Sales: +91 724 0000 733 · Support: +91 800 9315 333 · sales@akbarfasteners.in