Hex Nuts (Coarse/Fine/Lock)
Hex nuts: coarse thread (GB/T 6170-2015), fine thread (GB/T 6171-2016) and lock nuts (GB/T 889.1-2015). Filter by standard, pitch, grade, material and finish.
Estimate weight → Fastener Weight Calculator·See all sizes → Hex nut weight chart (M6–M36)
Hex nuts: coarse thread (GB/T 6170-2015), fine thread (GB/T 6171-2016) and lock nuts (GB/T 889.1-2015). Filter by standard, pitch, grade, material and finish.
SKU Matrix
0 SKUs| SKU | Size (Dia × Len) | Material / Finish | Threading | Pitch | Unit Wt (g) | Action |
|---|
Key Parameters
Standard Basis
GB/T 6170-2015 / GB/T 6171-2016 / GB/T 889.1-2015
Common equivalents are listed below; confirm dimensions and drawing details before substitution.
Spec Range
M3–M48 · 0 sizes / 0 SKUs
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Grades
—
Confirm grade together with mating nuts, washers and certificate requirements.
What to include
Quoted by full spec
Send diameter, property class, material, finish and the mating bolt standard with your inquiry. For use with hot-dip galvanized bolts, let us know so we can confirm tapping allowance and assembly fit.
Standard Equivalents
Cross-referenced equivalents, order to the primary standard
| Standard | Fit | Remark |
|---|---|---|
| GB GB/T 6170-2015 | Identical family | Chinese hex nut standard family |
| DIN DIN 934 | Commercial equivalent | Common commercial equivalent; confirm height/property class |
| ISO ISO 4032 | Commercial equivalent | Common commercial equivalent; confirm height/property class |
| GB/T GB/T 889.1-2015 | Identical family | Primary standard from source content |
Related Procurement Guides
Hex Nut Weight Chart
Grams per piece and kg per 1,000 pcs on the GB/T 6170-2015 basis, with width across flats and nut height, kg/1,000 ↔ lb/100 toggle.
How to Read an MTC (Material Test Certificate)
What MTC stands for, who issues it, how it differs from a COC, and the checks that expose a forged certificate.
Fastener Receiving Inspection Checklist
39 acceptance items drawn from three public tender specifications: document pack, MTC field checks, galvanizing and salt spray, torque and rejection rules.