M8, Socket Screw, Button, A2/ 304 Stainless Steel, ISO 7380, DIN 9427.

M8, Button Head, Socket Screw/ Allen Bolt, A2-70/ 304 Stainless Steel, DIN 9427, BS 4168, ASME B18.3.4M. Fixaball sells all lengths of M8 socket, button screws, A2-70/ 304 stainless steel at the best internet prices...
£2.45

M8, Button Head, Socket Screw/ Allen Bolt, A2-70/ 304 Stainless Steel, DIN 9427, BS 4168, ASME B18.3.4M.

Fixaball sells all lengths of M8 socket, button screws, A2-70/ 304 stainless steel at the best internet prices and fastfree delivery.

Orders placed before 2pm are dispatched same day (Mon-Fri).

Standard, Free Delivery is Royal Mail, 2nd Class (2-5 days, most likely 2 days). For a faster delivery time, select 1st class or courier at checkout. Packs weighing under 250grams are upgraded to 1st class as much as possible,

Please make your size and pack quantity selection from the drop down menus at the top of the page.

Button Sockets, Sizes Availaball

 

Material

Manufactured from A2/ 304 Stainless Steel (STANDARD) for weathering resistance

Button Socket Description

A socket screw with a button head is usually applied to fasten components where aesthetics (looks) are more important. The domed shaped or 'half spherical' shape of the head softens it's appearance and touch.

Chart to show the important dimensions of button sockets, DIN 7380

( LENGTHS: All bolts and set screws are always measured from the underside of the head) 

Fixaball

Dimensions Chart

Socket Screw Button Head Fasteners

Size

Thread Diameter

Pitch

(Standard Coarse)

Head Diameter

Head Height

Allen/ Hex Key Size

M3

3mm

0.5mm

5.7mm

1.65mm

2

M4

4mm

0.7mm

7.6mm

2.2mm

2.5

M5

5mm

0.8mm

9.5mm

2.75mm

3

M6

6mm

1.0mm

10.5mm

3.3mm

4

M8

8mm

1.25mm

14mm

4.4mm

5

    They are available in the following materials (please note; not every head type is available in every material):

    Material/ Finish

    Appearance

    Level of Corrosion Resistance

    Typical Application

    High Tensile Steel

    Self-Colour (black with no surface treatment)

    Low, without further surface treatment

    -          No exposure to moisture

    -          Often Greased/ Oilied

    High Tensile Steel - Zinc

    Bright Shine – Blue to Yellow

    Internal

    -          Low exposure to moisture

    A2 Stainless Steel

    Dull Shine

    External

    -          Intermittent weathering

    -          Hygiene

    A4 Stainless Steel

    Dull Shine

    External

    -          Constant Weathering

    -          Chemical exposure

     

    METRIC THREAD

    Metric Coarse and Metric Fine

    Are in Millimetre (mm) units and were developed to simplify the imperial systems. Europe moved to this system but the Americans choose Imperial as their default. A coarse thread has less helical coils per mm and a fine one has more. Coarse is used for heavier loads and fine is used for lighter loads prone to vibrations.

     

    Image is for illustrative purposes only.

     

      Alternative Names:

      • Button, Socket Screw
      • Button, Socket Screws
      • Button, Allen Socket Screw
      • Button, Allen Socket Screws
      • Button, Allan Socket Screw
      • Button, Allan Socket Screws
      • Button Bolt
      • Button Bolts
      • Socket, Button Screw
      • Socket, Button Screws
      • Allen Socket, Button Screw
      • Allen Socket, Buttons Screws
      • Allan Socket, Button Screw
      • Allan Socket, Buttons Screws