ENGINEERING TOOL
M6 Threaded Rod & Stud Bolt Weight Chart
Per-meter and per-piece weights of M6 fully threaded rod (same basis for all-thread, threaded bar and double-end stud bolts) across 100–3000 mm lengths (carbon steel, geometric-volume method), kg/m and lb/ft, with pitch, root diameter and tensile stress area — basis fully disclosed.
M6 threaded rod (carbon steel) weighs about 0.22 kg/m; a 1 m bar runs about 0.22 kg and a 3 m bar about 0.65 kg.
Other sizes
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Weight per meter (M6, kg/m)
| Weight per meter |
|---|
| 0.22 kg/m |
Thread Data
| Coarse pitch | 1 mm |
| External thread minor dia. | 4.77 mm |
| Tensile stress area As | 20.1 mm² |
Pitch and minor diameter are public ISO metric basic-profile geometry; As is the ISO 898-1 tensile stress area used for tensile capacity calculations, not the physical cross-section.
Weight per piece by length (M6, kg/pc)
| Length L (mm) | Weight per piece |
|---|---|
| M6×100 | 0.022 |
| M6×150 | 0.032 |
| M6×200 | 0.043 |
| M6×250 | 0.054 |
| M6×300 | 0.065 |
| M6×400 | 0.086 |
| M6×500 | 0.11 |
| M6×600 | 0.13 |
| M6×800 | 0.17 |
| M6×1000 | 0.22 |
| M6×1500 | 0.32 |
| M6×2000 | 0.43 |
| M6×2500 | 0.54 |
| M6×3000 | 0.65 |
Cell shows the piece weight at that length (kg/pc, carbon steel 7.85 g/cm³, fully threaded rolled rod at 97% of plain bar). Trade practice: 1/2/3 m standard bars or cut to length.
References
- GB/T 15389-1994 — Threaded rods (CN national standard, official full text)
- GB/T 192-2003 — General purpose metric screw threads: basic profile (CN, official full text; ISO 68-1 equivalent)
- Metric thread basic profile (ISO 68-1)
- Dimensions cross-checked against industry fastener data libraries; densities are common industry values
Material Density Conversion
Values above are carbon steel (7.85 g/cm³); for other materials multiply by the density factor.
| Material | Density (g/cm³) | Factor |
|---|---|---|
| Carbon / Alloy Steel | 7.85 | ×1.000 |
| Stainless 304 | 7.93 | ×1.010 |
| Stainless 316 | 7.98 | ×1.017 |
| Brass | 8.5 | ×1.083 |
Basis of Calculation & Disclosed Assumptions
All values are computed as geometric volume × density (carbon steel 7.85 g/cm³, base metal, coating excluded) — no copyrighted standard tables are reproduced. Fully threaded rolled rod = plain cylinder π/4·d²·L × 0.97 (thread-rolling allowance, identical formula and parameters as the online weight calculator). The plain full-diameter figure is 0.222 kg/m; this chart uses 97% of it.
Boundary: theoretical geometric estimates for quotation, freight and lifting budgets. Actual piece weight varies with thread tolerance and coating (hot-dip galvanizing ≈ +4.5%). Use measured values for trade settlement. Double-end studs are cut-to-length products — at the same diameter and length the piece weight matches threaded rod.
Corresponding standard page
Open the GB/T 15389 standard product page: sizes, materials and finishes, and ordering questions.
Open the GB/T 15389 page
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Send M6 straight into the inquiry form, with material, quantity and drawing — we quote to the standard or to your drawing.
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FAQ
How much does M6 threaded rod weigh per meter?
On the carbon-steel basis (fully threaded rolled rod at 97% of plain bar) about 0.22 kg/m; a 1 m bar runs about 0.22 kg and a 3 m bar about 0.65 kg. The plain full-diameter figure is 0.222 kg/m.
How much does a M6×3000 threaded rod weigh?
About 0.65 kg per 3 m bar on the carbon-steel basis; a 2 m bar is about 0.43 kg and a 1 m bar about 0.22 kg — see the full 100–3000 mm table above. For stainless 304/316 multiply by the density factors ×1.010/×1.017.
Are threaded rod and stud bolt weights the same thing?
Yes. A double-end stud bolt is threaded rod (all-thread / threaded bar) cut to a fixed length, so at the same diameter and length the unit weight is identical — the kg/m row and the length table of this chart apply to both. The terms threaded rod, all-thread, threaded bar and stud bolt all denote this fully threaded product family.
What are the pitch, root diameter and tensile stress area of M6 threaded rod?
Coarse pitch 1 mm, external thread minor (root) diameter about 4.77 mm, and tensile stress area As = 20.1 mm² (ISO 898-1). As drives tensile capacity and preload calculations — pair it with the torque chart.
What basis are these weights calculated on?
Geometric volume × density (carbon steel 7.85 g/cm³, base metal, coating excluded), fully threaded rolled rod at 97% of the plain cylinder — the same formulas and parameters as the online weight calculator; the plain full-diameter figure 0.222 kg/m is shown for reconciliation only. Theoretical estimates — use measured values for trade settlement.
Related References
Bolt Weight Calculator
Interactive version: threaded rod / stud bolt at any length with nut & washer sets, material and coating factors — this size is pre-filled.
M6 Bolt Torque Chart
Same-size torque range and preload matrix by class × friction state, Nm↔ft-lb toggle — stud tightening reference.
M6 Hex Bolt Weight Chart
Per-piece and per-1,000-pcs weights for the same size, including matching nut and washer.
Double-End Stud Catalog
GB/T 901 and more: studs for pressure vessels and flange connections — custom sizes quoted to drawing.
Industrial Pipe Flange Fasteners
Stud bolts for PN flange connections: selection guide with matching studs and gaskets.
Disclaimer: This chart is an engineering estimation for selection, quotation and freight estimation only. It does not constitute design or acceptance criteria.