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M20, Socket Screw, Cap Head, High Tensile/ 12.9, Zinc, DIN 912.

M20 x 2.5mm Pitch (Standard Coarse Thread), Allen/ Hexagonal Socket, Cap Head, Screw/ Bolt, High Tensile (Grade 12.9), Zinc, BZP, Cr3 DIN 912. Fixaball sells all lengths of M20 x 2.5mm Pitch (Standard...
£5.62

M20 x 2.5mm Pitch (Standard Coarse Thread), Allen/ Hexagonal Socket, Cap Head, Screw/ Bolt, High Tensile (Grade 12.9), Zinc, BZP, Cr3 DIN 912.

Fixaball sells all lengths of M20 x 2.5mm Pitch (Standard Coarse Thread), Allen/ Hexagonal Socket, Cap Head, Screw/ Bolt, High Tensile (Grade 12.9), Zinc, BZP, Cr3 DIN 912  at the best internet prices with free post.

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

M20 x 2.5mm Pitch (Standard Coarse Thread), Allen/ Hexagonal Socket, Cap Head, Screw/ Bolt lengths available:

  • 35mm Fully Threaded
  • 40mm  Fully Threaded
  • 50mm  Fully Threaded
  • 55mm  Fully Threaded
  • 60mm  Fully Threaded
  • 65mm  Fully Threaded
  • 70mm  Fully Threaded
  • 80mm Partially Threaded (with Plain Shank)
  • 90mm Partially Threaded (with Plain Shank)
  • 100mm Partially Threaded (with Plain Shank)
  • 110mm Partially Threaded (with Plain Shank)
  • 120mm Partially Threaded (with Plain Shank)
  • 150mm Partially Threaded (with Plain Shank)
  • 170mm Partially Threaded (with Plain Shank)
  • 200mm Partially Threaded (with Plain Shank)
  • 240mm Partially Threaded (with Plain Shank)

Allen/ Hexagonal Socket, Cap Head, Screw/ Bolt

Allen/ Hexagonal, Socket Cap Screw/ Bolts come as 'sets' and 'bolts'. The, ‘SET’, term is used to describe a fastener that is fully threaded in lengths up to and around 1 inch (from the underside of the head), depending on the diameter. As the diameter increases the set length will increase. Over around 1 inch (depending on the diameter) in length the fastener will have a, 'shoulder,' or unthreaded area (plain shank) under the head. This space of unthreaded area confirms that the fastener is now a bolt (cap head, bolt in this case). Some people might simply call them Allen or, 'Allan bolts,' in association with the Allen, Hexagonal Key which is used to tighten and loosen the fastener. So, ‘Socket,’ refers to the hexagon shaped indentation found on the top of the fasteners’ head. 

Available Materials: High Tensile (12.9 Grade) - Zinc, BZP Cr3

Material/ Finish

Appearance

Level of Corrosion Resistance

Typical Application

High Tensile Steel/ ZINC

Shiny Metallic

Resistant to light moisture, occasionally (not for external use)

Low moisture environments

 

Metric Threads.

Metric Coarse and Metric Fine threads are in millimetre (mm) units and referes to the distance between the helical coils. The Metric measurement system was 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. Standard (most commonly used) Coarse Threads are used for heavier loads e.g. Fabricating the Eiffel Tower and Fine Threads are used for lighter loads prone to vibrations e.g. motor and machine applications. Coarse threads are the, 'normal', most common versions.

 Image is for illustrative purposes only.

     

     Alternative names:

    • Cap screws/ Cap screw/ Capscrews/ Capscrew.
    • Allen cap/ Allen cap head/ Allen cap screw/ Allen cap/ Allen bolt, cap head/ Allen bolt, cap screw/ Allan Cap/ Allan cap head/ Allan capscrew.
    • Socket screw/ socket screws/ Socket cap screw/ Socket capscrews/ Socket cap, bolt.