Hex Nuts (Coarse/Fine/Lock) M30 8.8 Carbon Steel Galvanized
Specifications
- Standard
- GB/T 6170-2015 / GB/T 6171-2016 / GB/T 889.1-2015
- SKU
- HN-000136
- Nominal Diameter
- M30
- Material
- Carbon Steel
- Grade
- 8.8
- Finish
- Galvanized
- Thread Pitch
- 2.0
- Unit Weight
- 240 g/pc Geometry-based estimate, not an inspection weight, for quotation and freight planning
- Type
- Standard Part
Unit weight is a geometric estimate (base metal, coating excluded; HDG ≈ +4.5%); trade settlement by actual weight.
Standard Basis
GB/T 6170-2015 / GB/T 6171-2016 / GB/T 889.1-2015
Common equivalents below; confirm dimensions and drawing before substitution.
Spec Range
M30 · 同族 136 个规格
This SKU is sourced per order; other lengths/materials in this family below.
Material & Grade
Carbon Steel · 8.8
Quenched & tempered, Rm≥800 MPa (Rp0.2=640), standard high-strength
Surface & Finish
Galvanized
Outdoor protection: first choice for salt-spray, humid and exposed environments
Standard Equivalents
Equivalence is based on published standard-family information (Identical = interchangeable; Equivalent = dimensions/tolerances may differ, verify drawings before substitution).
| System | Standard | Equivalence | Note |
|---|---|---|---|
| GB | GB/T 6170-2015 | Identical | Chinese hex nut standard family |
| DIN | DIN 934 | Equivalent | Common commercial equivalent; confirm height/property class |
| ISO | ISO 4032 | Equivalent | Common commercial equivalent; confirm height/property class |
| GB/T | GB/T 889.1-2015 | Identical | Primary standard from source content |
Where It Fits
Outdoor / Infrastructure
Hot-dip galvanizing 55–85µm, long-life protection outdoors, salt-spray, cyclic wetting
Heavy-Duty / Structural
8.8 quenched & tempered, equipment erection, structural joints, vibration duty
Custom to Drawing
Lengths/materials/grades not listed can be manufactured to drawing or standard
FAQ
MOQ and lead time?
Sourced per order or made to drawing. MOQ and lead time are confirmed at quote time by quantity, material and finish. Other sizes in this family are listed above; unlisted specs can be sourced to your drawing.
Can material or grade be substituted?
Current grade: Quenched & tempered, Rm≥800 MPa (Rp0.2=640), standard high-strength. Swapping grade/material changes strength and corrosion resistance (e.g. 8.8→10.9 raises strength, 304→316 raises chloride resistance), re-check design load and environment before substitution.
How do I choose the finish?
Outdoor protection: first choice for salt-spray, humid and exposed environments. Other finishes (HDG, Dacromet, electro zinc) can be quoted on the same size.
Other Sizes in this Family
136 sizes total · current M30
M30 10 sizesOpen ▾
Stainless 304 · A2-70 · Plain
Carbon Steel · 8.8 · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
M3 8 sizesShow ▾
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
M4 8 sizesShow ▾
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
M5 8 sizesShow ▾
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
M6 8 sizesShow ▾
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
M8 14 sizesShow ▾
Carbon Steel · Plain
Stainless 316 · Plain
Carbon Steel · Dacromet
Stainless 304 · Plain
Nylon · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
Carbon Steel · 8.8 · Galvanized
M10 17 sizesShow ▾
Stainless 304 · Plain
Stainless 316 · Plain
Carbon Steel · Hot-Dip Galvanized
A2 Stainless · A2-70 · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · Plain
Nylon · Plain
Nylon · Hot-Dip Galvanized
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
Carbon Steel · 8.8 · Galvanized
M12 17 sizesShow ▾
Carbon Steel · Plain
Stainless 304 · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-80 · Plain
Stainless Steel · Plain
Stainless 304 · Plain
Nylon · A4-80 · Plain
Nylon · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
Carbon Steel · 8.8 · Galvanized
M14 1 sizesShow ▾
Alloy Steel · 12.9 · Plain
M16 14 sizesShow ▾
Stainless 304 · A2-70 · Plain
Carbon Steel · 8.8 · Plain
Stainless 304 · Plain
Carbon Steel · 8.8 · Dacromet
Nylon · 8.8 · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
Carbon Steel · 8.8 · Galvanized
M18 1 sizesShow ▾
Carbon Steel · Plain
M20 14 sizesShow ▾
Carbon Steel · 8.8 · Plain
Stainless 316 · Plain
Q235 Steel · Zinc Plated
Alloy Steel · 10.9 · Plain
Nylon · 10.9 · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
Carbon Steel · 8.8 · Galvanized
M24 12 sizesShow ▾
Stainless 304 · A2-70 · Plain
Carbon Steel · 8.8 · Plain
42CRMO · 42CRMO · Plain
Stainless 304 · A2-70 · Plain
Stainless 316L · A4-70 · Plain
Carbon Steel · 8 · Zinc Plated
Carbon Steel · 8 · Hot-Dip Galvanized
Carbon Steel · 8 · Dacromet
Carbon Steel · 10 · Dacromet
Carbon Steel · 10 · Black Oxide
Carbon Steel · 12 · Black Oxide
Carbon Steel · 8.8 · Galvanized
M36 2 sizesShow ▾
42CRMO · 42CRMO · Plain
Carbon Steel · 8.8 · Galvanized
M48 1 sizesShow ▾
Stainless 316L · A4-80 · Plain
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