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 127B
Fastener Catalog & Standard Specification
Active: DIN 127B (Spring Lock Washer)
Select a fastener below to view its data sheet
DIN 127BDIN STANDARDNon-ThreadedMetric Coarse
Single Coil Spring Lock Washers (Split)
Helical split spring washer providing spring tension against relaxation and biting edges into mating joint.
CAD Schematic
Nominal blueprint for M6
Engineering Schematic / CAD Dimension InspectorModel: M6
Nominal Thread (d)M6 P=-mm
Wrench / Allen (s)0mm e=0
Tap Drill DiameterØ 0 mm
Tensile Stress Area (Aₛ)0 mm²
Manufacturing & Drilling Engineering Notes
- • Flattens under nominal bolt preload torque. Note: For critical high-tensile structural joints (Grade 10.9/12.9), Nord-Lock or wedge washers are preferred over split washers.
Size Specification Inspector
M6Select diameter & order quantity
Select Nominal Thread Diameter
Thread Pitch- mm
Wrench (A/F Spanner s)N/A
Recommended Tap DrillØ 0 mm
Clearance Hole (H13)Ø 0 mm
Tensile Stress Area (Aₛ)0 mm²
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 | |
|---|---|---|---|---|---|---|---|---|
| M3 | - | 0 | 0 | 0.8 | 0 | 0 | 0 | |
| M4 | - | 0 | 0 | 1 | 0 | 0 | 0 | |
| M5 | - | 0 | 0 | 1.2 | 0 | 0 | 0 | |
| M6 | - | 0 | 0 | 1.6 | 0 | 0 | 0 | |
| M8 | - | 0 | 0 | 2 | 0 | 0 | 0 | |
| M10 | - | 0 | 0 | 2.2 | 0 | 0 | 0 | |
| M12 | - | 0 | 0 | 2.5 | 0 | 0 | 0 | |
| M16 | - | 0 | 0 | 3.5 | 0 | 0 | 0 | |
| M20 | - | 0 | 0 | 4 | 0 | 0 | 0 | |
| M24 | - | 0 | 0 | 5 | 0 | 0 | 0 |