M12 serrated flange nuts DIN6923 A4 50 pcs.
Serrated flange nuts M12, acid-resistant steel A4. Specifications: thread M12 with a pitch of 1,75 mm, wrench size 18 mm, flange diameter dc max. 26 mm and height m max. 12 mm. Price per pack of 50 pieces.

Flange nuts M12 — serrated, acid-resistant steel A4
Hexagonal nut with an integral round clamping flange. The flange distributes pressure over a larger area. The serrations are on the underside of the flange that contacts the fastened component and increase resistance to rotation at the contact surface.
Technical specifications
- Dimensional reference: DIN ≈ 6923
- Nut type: Hexagonal with flange
- Flange surface: Serrated
- Internal thread d: M12
- Thread pitch P: 1,75 mm
- Flange diameter dc: max. 26 mm
- Height m: max. 12 mm
- Wrench size s: 18 mm
- Manufacturing accuracy grade: A (ISO 4759-1)
- Material: Acid-resistant steel A4
- Quantity per pack: 50 pcs.
- Sales unit: pack
Dimensions dc and m are maximum values; s denotes the wrench size. The reference DIN ≈ 6923 describes the offered serrated version.

Material and installation
Acid-resistant steel A4. The choice of bolt, tightening force and contact surface should suit the conditions of the joint. The wrench engages the hexagonal body of the nut.

Drawing labels: d — thread M12; dc — flange diameter max. 26 mm; m — height max. 12 mm; s — wrench size 18 mm. Thread pitch P = 1,75 mm.
Scope of delivery
The price includes 50 pcs. of flange nuts M12.
Our own illustrations show the product family. The number of pieces shown next to the carton does not determine the quantity supplied. The exact values for this variant are given in the specifications; the catalogue diagram is not manufacturing documentation.
Frequently asked questions
How many pieces does the price include?
Pack of 50 pcs. of nuts M12.
What is the flange surface like?
Serrated on the underside clamping surface.
What are the wrench size and thread pitch of this variant?
Wrench size 18 mm and thread pitch 1,75 mm.
What material is the nut made of?
Acid-resistant steel A4.
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Sales unitpack
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MaterialAcid-resistant steel A4
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Quantity per pack50 pcs
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Wrench size s18 mm
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Thread pitch P1,75 mm
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Internal thread dM12
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Nut typeHexagonal with flange
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Dimensional referenceDIN ≈ 6923
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Flange surfaceSerrated
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Flange diameter dcmax. 26 mm
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Height mmax. 12 mm
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Manufacturing accuracy classA (ISO 4759-1)
1. Eye protection:
– Always wear safety goggles or a face shield to protect your eyes from sparks, particles and metal fragments.
2. Hearing protection:
– When working in a noisy environment, use ear defenders or earplugs to prevent hearing damage.
3. Respiratory protection:
– When working in dusty surroundings or in the presence of fumes, wear a filtering mask or an appropriate respirator.
– Ensure proper ventilation of the workstation.
4. Hand and skin safety:
– Use protective gloves that protect against mechanical injuries and chemicals.
– Where necessary, use protective creams to prevent irritation and dry skin.
5. Work clothing:
– Work in protective clothing resistant to sparks and splashes.
– Avoid loose clothing, jewellery and loose hair near machinery.
6. Fire risk:
– Keep the workstation free of flammable materials (e.g. paper, fabrics and chemicals).
– Keep a serviceable fire extinguisher close at hand and know how to use it.
7. Electrical hazards:
– Check the condition of cables and electrical equipment before use.
– Do not use electrical devices in damp conditions.
– Disconnect equipment from the power supply during maintenance or repairs.
8. Use of machinery and tools:
– Regularly inspect the technical condition of machines and tools.
– Use equipment in accordance with the manufacturer's instructions.
– Blades and tools should be maintained regularly and kept in good condition.
– Machines should be fitted with appropriate guards and protective devices.
9. Handling materials:
– Use handling equipment to move heavy components.
– Lift and carry using ergonomic practices to avoid injury.
10. Working with chemicals:
– Store chemicals in labelled, safe containers.
– Use substances in accordance with the manufacturer's instructions and occupational health and safety rules.
– Ensure air circulation when using chemicals.
Other important rules:
– Keep the workstation clean and tidy.
– Ensure adequate lighting in the working area.
– Provide occupational health and safety training.
– Carry out regular safety audits and comply with current regulations.

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