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DIN 912 A4 Black Oxide screws — family illustration
DIN 912 A4 Black Oxide screws in a carton — family illustration
Original diagram of the DIN 912 variant: d, dk, k, l, s, b for partial thread

M6x40 DIN 912 A4-70 Black Oxide socket head cap screws - 100 pcs.

Neron
zł279.06 Grosszł226.88 Net
(zł2.79 szt.)
zł199.65 Net zł245.57 Gross price with code PROMO

M6×40 mm DIN 912 screws, A4 stainless steel, property class 70, Black Oxide. Cylindrical head, 5 mm hexagon socket. Metric right-hand thread M6×1, partial thread; length 40 mm under the head. Full pack of 100 pieces; catalogue weight of this quantity 1,070 kg. Lead time: 7–14 days.

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Weight:
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DIN 912 A4-70 Black Oxide bolts — product family illustration

M6×40 mm DIN 912 bolts — A4-70 Black Oxide

Socket head cap screws with a hexagon socket for threaded joints. Material: A4 stainless steel, property class 70; Black Oxide finish. The socket allows tightening with a suitable hex key.

Key specifications

Metric right-hand thread M6×1 mm, partial thread. Length l = 40 mm is measured under the head. Maximum head diameter dk 10 mm, maximum head height k 6 mm, key size s = 5 mm. Sold in full packs of 100 pieces. Lead time: 7–14 days.

DIN 912 A4-70 Black Oxide bolts in a box — product family illustration

Technical specifications

StandardDIN 912
ISO referenceISO 4762 (catalogue reference)
BS referenceBS 4168-1 (catalogue reference)
ASME referenceASME B18.3.1M (catalogue reference)
NEN referenceNEN 1241 (catalogue reference)
NF referenceNF E25-125 (catalogue reference)
Product typeSocket head cap screw
Head shapeCylindrical
Socket typeHexagon socket
Thread diameterM6
Length under head l [mm]40
Thread pitch P [mm]1
Thread directionRight-hand
MaterialA4 stainless steel
Class70
FinishBlack Oxide
Maximum head diameter dk [mm]10
Maximum head height k [mm]6
Wrench size s [mm]5
Thread typeMetric, partial thread
Full thread for L ≤ [mm]30
Catalogue dimension b [mm]24 (catalogue value)
Pieces per pack100
Sales unitPack
Pack weight [kg]1,070

The primary designation is DIN 912. The individual product sheet also lists catalogue references ISO 4762, BS 4168-1, ASME B18.3.1M, NEN 1241 and NF E25-125. Listing these references does not declare that all the standards are fully identical.

The catalogue specifies a full thread for L ≤ 30 mm. This variant is 40 mm long and has a partial thread. The product sheet gives dimension b = 24 mm; the value is quoted from the catalogue without adding unspecified tolerances or maximum/minimum qualifiers.

Custom diagram of the DIN 912 screw: d, dk, k, l, s, b — catalogue illustration

Scope of delivery and weight

Sales unit: one full pack of 100 M6×40 mm screws. Catalogue weight of the quantity sold: 1,070 kg, calculated from 10,7 g/piece × 100 pieces and rounded to the nearest whole gram. This is the catalogue weight of the quantity, not an in-house measurement or a confirmed gross box weight. Product and box photographs show a common example of the family; the exact dimensions and thread coverage of this variant are given in the table and diagram. The diagram is a catalogue illustration, not a manufacturing drawing.

Frequently asked questions

How many bolts does the price cover?

The price is for one full pack of 100 pieces.

How is the length of a DIN 912 bolt measured?

Length l = 40 mm is measured under the head, from the bearing surface to the end of the bolt.

What thread and wrench size does this variant have?

Metric right-hand thread M6×1, partial thread; hex key s = 5 mm. The catalogue specifies a full thread for L ≤ 30 mm. This variant is 40 mm long and has a partial thread. The product sheet gives dimension b = 24 mm; the value is quoted from the catalogue without adding unspecified tolerances or maximum/minimum qualifiers.

What is the lead time?

The lead time is 7–14 days.

  • Brand
  • Reference
    N-912-A4-70-BO-M6X40-Q100
  • Waga
    1,07 kg
  • EAN13
    4022697857053

  • Condition
    New
  • Standard
    DIN 912
  • Sales unit
    Pack
  • Number of pieces per pack
    100
  • Material
    A4 stainless steel
  • Thread type
    Metric, partial thread
  • Wrench size S [mm]
    5
  • Drive type
    Hexagonal
  • Head shape
    Cylindrical
  • Class
    70
  • Thread direction
    Right-hand
  • Finish
    Black Oxide
  • Product type
    Cylindrical head screw
  • Thread pitch P [mm]
    1
  • Head diameter dk max. [mm]
    10
  • Head height k max. [mm]
    6
  • Pack mass [kg]
    1,070
  • Full thread for L ≤ [mm]
    30
  • Reference ISO
    ISO 4762 (catalogue reference)
  • Thread diameter
    M6
  • Reference NF
    NF E25-125 (catalogue reference)
  • Reference NEN
    NEN 1241 (catalogue reference)
  • Reference BS
    BS 4168-1 (catalogue reference)
  • Reference ASME
    ASME B18.3.1M (catalogue reference)
  • Length under head l [mm]
    40
  • Catalogue dimension b [mm]
    24 (catalogue value)

Workplace safety warnings — in accordance with Regulation (EU) 2023/988 on general product safety:
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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