At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 432. External tab (lug) lock washers – flat washer with one external bendable tab that is folded down against a component edge to prevent nut/bolt rotation. Provides positive mechanical locking.
External tab (lug) lock washers – flat washer with one external bendable tab that is folded down against a component edge to prevent nut/bolt rotation. Provides positive mechanical locking.
External tab lock washer
Key dimensions for common sizes are listed below.
| Nominal Size | Inside Dia. d1 (mm) | Outside Dia. d2 (mm) | Thickness s (mm) | Tab Width f (mm) |
|---|---|---|---|---|
| M3 | 3.2 | 12 | 0.4 | 2.5 |
| M4 | 4.3 | 14 | 0.4 | 2.5 |
| M5 | 5.3 | 17 | 0.75 | 3.5 |
| M6 | 6.4 | 19 | 0.75 | 3.5 |
| M8 | 8.4 | 22 | 1.0 | 3.5 |
| M10 | 10.5 | 26 | 1.0 | 4.5 |
| M12 | 13 | 30 | 1.2 | 4.5 |
| M16 | 17 | 36 | 1.2 | 5.5 |
| M20 | 21 | 42 | 1.6 | 6.5 |
| M24 | 25 | 50 | 1.6 | 7.5 |
| M30 | 31 | 63 | 1.6 | 8.5 |
N/A (washer – no thread)
[‘DIN 463’, ‘DIN 93’, ‘DIN 462’, ‘DIN 434’]
For the official DIN standards catalogue, see the DIN standards listing. This external reference is provided for standards identification; the purchaser should verify the current edition applicable to the order.
We produce DIN 432 fasteners in carbon and alloy steel, austenitic, duplex and super-duplex stainless, and high-nickel, titanium and copper alloys — for structural, flanged, machinery and process applications worldwide.
For technical documentation and quotations, buyers can also review the Ananka Fasteners manufacturing and supply range or contact the team through the fastener enquiry and technical support page.
Ananka Fasteners supplies every lot with full material traceability and third-party testing on request.
External tab (lug) lock washers – flat washer with one external bendable tab that is folded down against a component edge to prevent nut/bolt rotation. Provides positive mechanical locking.
Ananka Fasteners manufactures DIN 432 in sizes from M3–M30. See the Dimensional Table above for the complete size breakdown.
N/A (washer – no thread)
We produce DIN 432 fasteners in carbon and alloy steel, austenitic, duplex and super-duplex stainless, and high-nickel, titanium and copper alloys — for structural, flanged, machinery and process applications worldwide.
Yes. For a quotation, provide the required nominal size, material grade, quantity and any inspection or certificate requirements.
Need a fastener manufactured to DIN 432 for an industrial project? Send the required fastener type, size, material grade, quantity and certification requirements to Ananka Fasteners. Our team can review the requirement and provide technical and commercial information for standard or custom configurations.
Recommended RFQ details: DIN 432 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 432 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
