M4x40 Button head screws Torx T20 A2 - ISO 7380-1 - 200 pcs.

zł74.08 Grosszł60.23 Net
(zł0.37 szt.)
zł53.00 Net zł65.19 Gross price with code PROMO

Screws M4x40 with button head, Torx socket T20, A2 stainless steel. Metric right-hand thread M4x0,7; approximate dimensional reference ISO 7380-1. Pack of 200 pieces; catalogue weight of quantity 0,690 kg. Lead time: 7-14 days.

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Weight:
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Screws Torx A2 with button head - product family illustration

Screws M4x40 with button head Torx T20 - A2 stainless steel

Screws with a low button head and Torx T20 hexalobular socket. The head has no flange and has a flat bearing surface underneath. Metric right-hand thread M4 with a pitch of 0,7 mm.

Dimensions and load capacity

Length L = 40 mm is measured from the underside of the head to the screw end. Maximum head diameter dk 7,6 mm; maximum head height k 2,2 mm. ISO 7380-1 is an approximate dimensional reference. The screws have reduced load capacity due to their head geometry. Selection of loads and tightening conditions should take account of the documentation for the specific joint.

Screws Torx A2 - box illustration

Technical specifications

Thread sizeM4
Length [mm]40
MaterialA2 stainless steel
Head typeButton head
SocketTorx T20
Thread typeMetric
Thread directionRight-hand
Thread pitch [mm]0,7
Maximum head diameter dk [mm]7,6
Maximum head height k [mm]2,2
Dimensional referenceApproximate ISO 7380-1 reference
Load capacityReduced due to head geometry
Pieces per pack200
Catalogue weight of quantity [kg]0,690
EAN8715494552356
Code51029.040.040
Diagram of a button head screw without flange - d, dk, k, L

Thread diameter d = M4.

Length under head L = 40 mm.

Maximum head diameter dk = 7,6 mm.

Maximum head height k = 2,2 mm.

Scope of delivery and weight

The price is for one pack of 200 pieces. The catalogue weight of this quantity is 0,690 kg, based on 3,45 g/piece x 200 pieces. The graphics are catalogue illustrations of the family; the box is a generic packaging visualization. The exact size and quantity are specified by the variant parameters. The diagram shows the thread and socket schematically and is not manufacturing documentation.

Frequently asked questions

How many bolts does the price cover?

One pack of 200 M4x40 screws.

Which tool fits the socket?

Torx T20 bit for a hexalobular socket.

How is the length of 40 mm measured?

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

What is the lead time?

The lead time is 7-14 days.

  • Brand
  • Reference
    N-51029-A2-M4X40-T20-Q200
  • Waga
    0,69 kg
  • EAN13
    8715494552356

  • Number of pieces per pack
    200
  • Material
    A2 stainless steel
  • Thread type
    Metric
  • Thread pitch [mm]
    0,7
  • Length [mm]
    40
  • Thread direction
    Right-hand
  • Head type
    Spherical
  • Head diameter dk max. [mm]
    7,6
  • Head height k max. [mm]
    2,2
  • EAN
    8715494552356
  • Dimensional reference
    Approximate ISO 7380-1 reference
  • Thread size
    M4
  • Load capacity
    Reduced due to head geometry
  • Drive
    Torx T20
  • Catalogue mass of quantity [kg]
    0,690
  • Reference
    51029.040.040

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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