Engineering Data Sheets
Fastener Data Sheets& CAD
Browse ISO, DIN, ASTM and ASME fastener standards with dimensional specifications, CAD blueprints, drilling & clearance data, chemical composition and mechanical properties.
Reference: DIN 6921 / ISO 4162
Fastener Catalog & Standard Specification
Active: DIN 6921 / ISO 4162 (Hex Flange Bolt)
Select a fastener below to view its data sheet
DIN 6921 / ISO 4162DIN STANDARDFull ThreadMetric Coarse
Hexagon Flange Bolts
One-piece hex head with integrated circular flange/washer underneath that spreads clamping load over a wide area.
CAD Schematic
Nominal blueprint for M10
Engineering Schematic / CAD Dimension InspectorModel: M10 × 50mm
Nominal Thread (d)M10 P=1.5mm
Wrench / Allen (s)15mm e=16.64
Tap Drill DiameterØ 8.5 mm
Tensile Stress Area (Aₛ)58 mm²
Manufacturing & Drilling Engineering Notes
- • Eliminates the requirement for a separate flat washer. Available with smooth or serrated anti-loosening flange underside.
Size Specification Inspector
M10Select diameter & order quantity
Select Nominal Thread Diameter
Thread Pitch1.5 mm
Wrench (A/F Spanner s)15 mm
Recommended Tap DrillØ 8.5 mm
Clearance Hole (H13)Ø 11 mm
Tensile Stress Area (Aₛ)58 mm²
Single unit weight (steel): 0.0351 kg
Chemical Composition & Metallurgy
Elemental mass percentages, grain structure & mechanical properties
Elemental Composition (Mass %)
CCarbon0.25 - 0.55%
MnManganese0.60 - 1.20%
PPhosphorus0.025% max
SSulfur0.025% max
SiSilicon0.15 - 0.35%
CrChromium0.20 - 0.50% (Optional)
BBoron0.0008 - 0.005% (Boron-treated)
FeIronBalance (~97.5%)
Mechanical Strength & Heat Treatment
Metallurgical Notes
- • Quenched and tempered at min 425°C to achieve fine tempered martensite microstructure.
- • Meets ISO 898-1 / ASTM F568M Class 8.8 specifications.
- • Boron-alloyed steels must contain min 0.0008% active Boron for hardenability.
Dimensional Specification
Thread / Pitch / Across Flats / Corners / Height / Drill / Clearance / Stress Area (mm)
| Thread (d) | Pitch | A/F (s) | Corners (e) | Height | Tap Drill | Clear H13 | Stress Area | |
|---|---|---|---|---|---|---|---|---|
| M5 | 0.8 | 8 | 8.79 | 5.4 | 4.2 | 5.5 | 14.2 | |
| M6 | 1 | 10 | 11.05 | 6.6 | 5 | 6.6 | 20.1 | |
| M8 | 1.25 | 13 | 14.38 | 8.1 | 6.8 | 9 | 36.6 | |
| M10 | 1.5 | 15 | 16.64 | 9.2 | 8.5 | 11 | 58 | |
| M12 | 1.75 | 16 | 17.77 | 11.5 | 10.2 | 13.5 | 84.3 | |
| M14 | 2 | 18 | 20.03 | 12.8 | 12 | 15.5 | 115 | |
| M16 | 2 | 21 | 23.35 | 14.4 | 14 | 17.5 | 157 | |
| M20 | 2.5 | 27 | 29.56 | 17.1 | 17.5 | 22 | 245 |