INTERNAL TOOTH

Shakeproof washers prevent nuts and bolts from loosening due to vibration. They feature sharp teeth that bite into the mating surface and the fastener head.

Internal Tooth Washers

  • Design: Teeth extend inward along the inner diameter.
  • Appearance: Smooth, clean outer edge.
  • Best For: Small-head fasteners like pan head or cheese head screws.
  • Visual Profile: Hidden completely under the screw head after tightening.
  • Biting Surface: Contacts the smallest diameter of the fastener head.

Choose Internal When:

  • Space is tight: Preventing the washer from catching on nearby parts.
  • Aesthetics matter: Keeping the finished assembly looking neat and scratch-free.
  • Electrical grounding: Scraping paint off small chassis holes for a solid ground connection.
INTERNAL TOOTH
STEEL

STEEL

From £1.60 To £1,060.00 (exc VAT)
From £1.92 To £1,272.00 (inc VAT)

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STAINLESS STEEL A2

STAINLESS STEEL A2

From £1.90 To £338.00 (exc VAT)
From £2.28 To £405.60 (inc VAT)

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STAINLESS STEEL A4

STAINLESS STEEL A4

From £3.00 To £70.00 (exc VAT)
From £3.60 To £84.00 (inc VAT)

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