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Hex Head Black Bolt M20

Price range: R3 644,00 through R4 554,00

Description

Hexagonal Black Bolt

Din 931 (partially threaded)

Grade 8.8

Partially threaded hexagon head fasteners are used to  provide high shear strength, precise component alignment and reliable load-bearing capacity in heavy-duty structural and mechanical application.

           Key Purposes and Structural Benefits
  • Shear Load Resistance: The smooth, unthreaded shank handles sideways forces much better than threaded sections, protecting the joint from wear.
  • Precise Alignment: The solid unthreaded shaft acts like a dowel to keep thick components lined up correctly under pressure.
  • Stronger Clamping: The reduced thread exposure provides a stable grip in high-vibration settings, lowering the risk of loosening.

Common Industry Uses

  • Steel Frameworks: Fastening heavy metal beams, columns, and building trusses.
  • Machinery Assembly: Securing industrial motor bases, heavy housings, and engine parts.
  • Infrastructure: Building bridges, transport rails, and large energy plants.

Additional information

Size

M20 X 60MM, M20 X 65MM, M20 X 70MM, M20 X 75MM, M20 X 80MM, M20 X 90MM, M20 X 100MM, M20 X 110MM, M20 X 120MM, M20 X 130MM, M20 X 140MM, M20 X 150MM, M20 X 160MM, M20 X 180MM, M20 X 200MM, M20 X 220MM, M20 X 225MM, M20 X 230MM, M20 X 240MM, M20 X 250MM, M20 X 260MM, M20 X 270MM, M20 X 275MM, M20 X 280MM, M20 X 285MM, M20 X 290MM, M20 X 300MM, M20 X 310MM, M20 X 320MM, M20 X 330MM, M20 X340MM, M20 X 350MM, M20 X 360MM, M20 X 385MM, M20 X 400MM, M20 X 410MM, M20 X 450MM, M20 X 480MM, M20 X 500MM, M20 X 510MM

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