Hex Nuts (Coarse/Fine/Lock) GB/T 6170
Hex nuts: coarse thread (GB/T 6170), fine thread (GB/T 6171) and lock nuts (GB/T 889.1). Filter by standard, pitch, grade, material and finish.
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Key Parameters
Standard Basis
GB/T 6170 / GB/T 6171 / GB/T 889.1
Common equivalents are listed below; confirm dimensions and drawing details before substitution.
Spec Range
M3–M48 · 11 sizes / 90 SKUs
Stainless 304, Stainless 316, Stainless 316L, Carbon Steel; Zinc Plated, Hot-Dip Galvanized, Dacromet, Black Oxide
Grades
A2-70, A4-70, 8, 10, 12
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 | 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 | Identical family | Primary standard from source content |
Hex nuts: coarse thread (GB/T 6170), fine thread (GB/T 6171) and lock nuts (GB/T 889.1). Filter by standard, pitch, grade, material and finish.
Spec Range
M3–M48 · 11 sizes
SKU Matrix
90 SKUs| SKU | Size (Dia × Len) | Material / Finish | Threading | Pitch | Unit Wt (g) | Action | |
|---|---|---|---|---|---|---|---|
 | HN-000065 | M3 | Carbon Steel· 10· Dacromet8 material/finish options | — | 0.5 | 0.4 Estimated | |
 | HN-000071 | M4 | Carbon Steel· 10· Dacromet8 material/finish options | — | 0.7 | 0.7 Estimated | |
 | HN-000077 | M5 | Carbon Steel· 10· Dacromet8 material/finish options | — | 0.8 | 1 Estimated | |
 | HN-000092 | M6 | Carbon Steel· 10· Dacromet8 material/finish options | — | 1.0 | 2 Estimated | |
 | HN-000095 | M8 | Carbon Steel· 10· Dacromet8 material/finish options | — | 1.25 | 5 Estimated | |
 | HN-000098 | M10 | Carbon Steel· 10· Dacromet10 material/finish options | — | 1.5 | 10 Estimated | |
 | HN-000101 | M12 | Carbon Steel· 10· Dacromet8 material/finish options | — | 1.75 | 15 Estimated | |
 | HN-000104 | M16 | Carbon Steel· 10· Dacromet8 material/finish options | — | 2.0 | 31 Estimated | |
 | HN-000107 | M20 | Carbon Steel· 10· Dacromet8 material/finish options | — | 2.5 | 61 Estimated | |
 | HN-000083 | M24 | Carbon Steel· 10· Dacromet8 material/finish options | — | 3.0 | 100 Estimated | |
 | HN-000089 | M30 | Carbon Steel· 10· Dacromet8 material/finish options | — | 3.5 | 240 Estimated |