ENGINEERING TOOL
M6 Hex Nut Weight & Dimensions Chart
Unit weight and weight per 1,000 pcs of M6 hex nuts (width across flats per GB/T 6170, modeled nut height), computed as geometric volume × density on carbon steel, with kg/1000 pcs ↔ lb/100 pcs toggle — basis fully disclosed.
An M6 hex nut (carbon steel) weighs about 2 g per piece, i.e. about 2 kg/1000 pcs.
Other sizes
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Unit and bulk weight (M6)
| Weight per piece (g) | Bulk weight (kg/1000 pcs) |
|---|---|
| 2 g | 2 kg/1000 pcs |
Nut Dimensions
| Nominal diameter d | 6 mm |
| Width across flats s | 10 mm |
| Nut height m | 5 mm |
Width across flats s follows GB/T 6170 (≈ ISO 4032) style-1 hex nuts; nut height m is our library's modeled dimension (ISO 4032:1999 / GB/T 6170-2000 series), identical to the catalog SKU and calculator parameters. Fine-thread nuts (GB/T 6171) share the same envelope, so this table approximates their unit weight.
References
- GB/T 6170-2015 — Style 1 hexagon nuts (CN, official full text; dimension series identical to ISO 4032:1999 / GB/T 6170-2000)
- Hex nut dimensions (ISO 4032 series)
- 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. Hex nut = hexagonal prism (across flats s) minus the tapped hole (effective diameter d − 0.5×pitch: the mean of thread major/minor diameters with face-chamfer allowance, calibrated family-wide against public per-1,000-pcs weight tables) — identical formula and parameters as the online weight calculator.
Boundary: theoretical geometric estimates for quotation, freight and packing budgets. Actual piece weight varies with thread tolerance, chamfer and coating (hot-dip galvanizing ≈ +4.5%); use measured values for trade settlement. Note the standards difference: withdrawn DIN 934 gave M12 a width across flats of 19 mm, while GB/T 6170 / ISO 4032 specify 18 mm — weights differ slightly. This chart uses GB/T 6170 across-flats with the library modeled nut height (ISO 4032:1999 / GB/T 6170-2000 series, same parameters as our catalog SKUs).
Corresponding standard page
Open the GB/T 6170 / DIN 934 standard product page: sizes, materials and finishes, and ordering questions.
Open the GB/T 6170 / DIN 934 page
Request a quote for this spec
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 an M6 hex nut weigh?
About 2 g per piece on the carbon-steel basis (GB/T 6170), i.e. about 2 kg per 1,000 pcs. For stainless 304/316 multiply by the density factors ×1.010/×1.017.
How much do 1,000 M6 hex nuts weigh?
About 2 kg per 1,000 pcs on the carbon-steel basis (≈ 0.44 lb per 100 pcs); add packaging and coating allowances for shipping budgets (hot-dip galvanizing ≈ +4.5%).
What are the width across flats and height of an M6 hex nut?
Width across flats s = 10 mm (per GB/T 6170), nut height m = 5 mm (library modeled dimension, ISO 4032:1999 / GB/T 6170-2000 series — same parameters as our catalog SKUs), mating M6 bolts with 1 mm coarse pitch.
What nut and washers pair with an M6 bolt?
A matching M6 hex nut (GB/T 6170, about 2 g per piece); for flat washers (GB/T 97.1) and spring washers (GB/T 93) see our washer weight chart — both types side by side for the same size.
What basis are these weights calculated on?
Geometric volume × density (carbon steel 7.85 g/cm³, base metal, coating excluded): hexagonal prism minus the tapped hole — the same formula and parameters as the online weight calculator. Theoretical estimates — use measured values for trade settlement.
Related References
Bolt Weight Calculator
Interactive version: nuts, flat/spring washers and bolt sets at any quantity, material and coating factors — this size is pre-filled.
M6 Hex Bolt Weight Chart
Per-piece and per-1,000-pcs weights for the same size, including matching nut and washer.
M6 Flat & Spring Washer Weight Chart
Same-size flat and spring washers side by side: OD, thickness and unit weight.
Hex Nut Catalog
GB/T 6170 coarse, GB/T 6171 fine and lock nuts: sizes, materials and coatings — quotation on request.
Disclaimer: This chart is an engineering estimation for selection, quotation and freight estimation only. It does not constitute design or acceptance criteria.