At Ananka Fasteners Pvt Ltd, we manufacture fasteners to the dimensional requirements of DIN 608. DIN 608 covers flat countersunk (90 degree) head bolts with a square neck and a short square (also called countersunk plow/carriage bolts, short square neck). The square neck seats in a square hole to prevent rotation while the head sits flush. Values below are nominal head and square-neck dimensions.
DIN 608 covers flat countersunk (90 degree) head bolts with a square neck and a short square (also called countersunk plow/carriage bolts, short square neck). The square neck seats in a square hole to prevent rotation while the head sits flush. Values below are nominal head and square-neck dimensions.
Flat countersunk head, square-neck bolt (short square)
Key dimensions for common sizes are listed below.
| Thread d | Head Dia dk (mm) | Head Height k (mm) | Square Width v (mm) | Square Length (mm) |
|---|---|---|---|---|
| M6 | 14 | 3.5 | 6 | 6 |
| M8 | 18 | 4.5 | 8 | 8 |
| M10 | 22 | 5.5 | 10 | 10 |
| M12 | 26 | 6.5 | 12 | 12 |
| M16 | 33 | 8.5 | 16 | 16 |
| M20 | 40 | 10.5 | 20 | 20 |
ISO metric coarse thread, tolerance 6g per ISO 965
[‘DIN 605 (countersunk square-neck, long square)’, ‘DIN 604 (flat countersunk nib bolt)’, ‘DIN 603 (mushroom head carriage bolt)’]
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 608 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.
DIN 608 covers flat countersunk (90 degree) head bolts with a square neck and a short square (also called countersunk plow/carriage bolts, short square neck). The square neck seats in a square hole to prevent rotation while the head sits flush. Values below are nominal head and square-neck dimensions.
Ananka Fasteners manufactures DIN 608 in sizes from M6–M20. See the Dimensional Table above for the complete size breakdown.
ISO metric coarse thread, tolerance 6g per ISO 965
We produce DIN 608 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 608 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 608 requirement, nominal size, material grade, quantity, inspection requirements and EN 10204 certificate requirements where applicable.
Dimensions compiled per DIN 608 and industry references; provided for reference only — confirm against the current edition of the standard before design use.
