screw-m6-18mm.md

title	tags	disqus
screw-m6-18mm	d3d, ose	your-shortname

:::success :handshake: Please contribute by directly editing and/or commenting! ::: :::danger Images need to be redrawn and placed under a suitable license (CC BY-SA). :::

screw-m6-18mm Screw DIN912 M6 with length 18mm


properties (full spec)

:::info the following information fully specifies the part :::

• norm: DIN 912 (ISO 4762)
• thread: M6
• length w/o head (L): 18mm

tools 

• allen-5mm hex ("Allen") key of 5mm (= 0.197 inch)
• bit-hex-5mm hex driver bit of 5mm

suggested properties

corrosin/coating: zinc-plated steel (typically Class 8.8 or 12.9)

• Zink-plating provides basic rust protection and is suitable for indoors and for dry climates.
• Zinc-plated steel is typicall much cheaper than stainless steel (e.g., Class A-2).

material: any steel

• In terms of strength/stress-resistance, any kind of steel should be fine. Often, (zinc-plated) screws are available in Class 8.8, which provides ample strength.

derived properties

:::info the following information is implied by properties (full spec) above :::

• hex socket (s): 5mm
• fully threaded (L=b)
• head shape: cylindrical
• head diameter (D,d2,dk): 10mm
• head hight (k): 6mm
• thread pitch: 1mm (coarse)
  • NOT 0.75mm (fine)

reference suppliers

:::info these suppliers provide good information and specs, they are not necessarily cheap :::

:flag-us: Grainger | McMaster-Carr :flag-de: schraubenhandel24.de

cost

<iframe width="100%" height="400" src=https://ethercalc.org/irpysl3ffhws> </iframe>

📂 open full view for convenient editing

technical drawings and visualizations

:::success  ::: :::success  D=10mm, k=6mm, d=6mm, s=5mm, L=b=18mm :::

material: steel

Material quality of steel screws is grouped by - Class (e.g., 8.8), for metric screws, all steel, based on ASTM/ISO standards - Grade (e.g., 8), US, all steel, based on ASTM/SAE ratings

material	Grade	Class	same/similar
carbon steel	5	8.8	5 ≈ 8.8
alloy steel	8	10.9, 12.9	8 ≈ 10.9
stainless steel	18-8, 316	A-2, A-4	18-8 ≈ A-2, 316 ≈ A-4

minimum tensile strengths (MPa) of different materials

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        {"category": "Grade 5", "amount": 723.9495},
        {"category": "Class 8.8", "amount": 800},
        {"category": "Grade 8", "amount": 1034.214},
        {"category": "Class 10.9", "amount": 1040},
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(Chart created based on this example: https://vega.github.io/vega/tutorials/bar-chart/)

Reported numbers vary.

Tensile strength is measured, among others, in megapascal (MPa). Pascal (Pa) measures pressure or stress. Conversions:

• 1000 MPa = 1 GPa = 145,037.7 pounds per inch^2^ (PSI).

corrosion

:female-construction-worker: 

related parts

nut-m6