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Torx A2 button head screws with flange - family illustration
Torx A2 screws - carton illustration of a full pack
Original flanged bolt diagram: d, dc, k, L

M4x4 Flanged screws Torx T20 A2 - ISO 7380-2 - 1000 pcs.

Neron
zł279.06 Grosszł226.88 Net
(zł0.28 szt.)

Screws M4×4 with button head and flange, Torx socket T20, A2 stainless steel. Metric right-hand thread M4×0,7; dimensional reference ≈ ISO 7380-2. Full pack of 1000 pieces; catalogue weight of quantity 0,780 kg. Lead time: 7-14 days.

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Weight:
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Screws Torx A2 with button head and flange - custom illustration of the family

Screws M4×4 with flange - Torx T20, A2 stainless steel

Metric right-hand screws M4×0,7 with a low button head, integral flange and Torx T20 hexalobular socket. Material: A2 stainless steel. The flange provides a bearing surface under the head.

Dimensions and load capacity

Length L = 4 mm is measured from the underside of the flange to the screw end. Maximum flange diameter dc 9,4 mm; maximum head height k 2,2 mm. The catalogue gives the dimensional reference ≈ ISO 7380-2 and a reduced load capacity due to the head geometry. Refer to the documentation for the specific joint when selecting loads and tightening conditions.

Full pack of screws Torx A2 - custom box illustration for the family

Technical specifications

Dimensional reference≈ ISO 7380-2
Product typeFlanged button head screw
Head shapeButton head with flange
Socket typeTorx (hexalobular)
Socket sizeT20
Nominal diameter d [mm]4
Length L [mm]4
Thread pitch P [mm]0,7
Thread directionRight-hand
Thread typeMetric
Maximum flange diameter dc [mm]9,4
Maximum head height k [mm]2,2
MaterialA2 stainless steel
Load capacityReduced (head geometry)
Pieces per pack1000
Pack weight [kg]0,780
EAN8715494097505
Custom diagram of a flanged button head screw: d, dc, k, L

Thread diameter d = M4.

Length under head L = 4 mm.

Maximum flange diameter dc = 9,4 mm.

Maximum head height k = 2,2 mm.

Scope of delivery and weight

The price is for one full pack of 1000 pieces. Catalogue weight of the quantity sold: 0,780 kg, from 0,78 g/piece × 1000 pieces, 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. The graphics are custom catalogue illustrations of the family. The box is a generic packaging visualization; exact dimensions and quantity are specified in the variant table. The diagram represents the geometry, thread and socket schematically; it is not manufacturing documentation.

Frequently asked questions

How many bolts does the price cover?

One full pack of 1000 M4×4 screws.

Which tool fits the socket?

Torx T20 bit for a hexalobular socket.

How is the length of 4 mm measured?

From the flat underside of the flange to the end of the screw. Head height is the separate dimension k.

What is the lead time?

The lead time is 7-14 days.

  • Brand
  • Reference
    N-51041-A2-M4X4-T20-Q1000
  • Waga
    0,78 kg
  • EAN13
    8715494097505

  • Number of pieces per pack
    1000
  • Material
    A2 stainless steel
  • Thread type
    Metric
  • Nominal diameter d [mm]
    4
  • Length L [mm]
    4
  • Drive type
    Torx (hexalobular)
  • Head shape
    Button head with flange
  • Thread direction
    Right-hand
  • Product type
    Flanged button head screw
  • Thread pitch P [mm]
    0,7
  • Head height k max. [mm]
    2,2
  • Pack mass [kg]
    0,780
  • Drive size
    T20
  • EAN
    8715494097505
  • Flange diameter dc max. [mm]
    9,4
  • Dimensional reference
    ≈ ISO 7380-2
  • Load capacity
    Reduced (head geometry)

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.
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– 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:
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– Use equipment in accordance with the manufacturer's instructions.
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Other important rules:
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