M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel

Product code: HCS10642-M8-120-A4-70
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M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel
M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel
M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel
M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel
M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel
M8 x 120mm Hex Socket (H5) Countersunk Screw (ISO 10642) | Marine Grade A4-70 Stainless Steel
Quantity
Unit Price
(ex. VAT)
Unit Price
(inc. VAT)
1 - 99 £1.27 £1.53
100 - 499 £1.16 £1.39
500 - 999 £1.04 £1.25
1000 - 4999 £0.93 £1.11
5000 + £0.77 £0.92
£1.53 / each
Quantity:


Product Specification
Thread Size M8
Length 120mm
Pitch 1.25mm
Head Diameter 17.92mm
Head Height 4.96mm
Drive H5
Standard ISO 10642
Head Style Countersunk
Material A4-70 Stainless Steel

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Frequently Bought Together

Total Price: £0.00

M8 x 120mm Hex Countersunk Screw ISO 10642 | A4-70 Stainless Steel

This ISO 10642 fastener uses an M8 thread combined with a 120mm length to suit structural and heavy-duty applications demanding substantial thread engagement. The 17.92mm head diameter allows the countersunk profile to sit neatly within prepared recesses on fabricated components.

Manufactured for engineering applications. The 4.96mm head height and H5 hex socket drive are specific to this variant, supporting controlled torque transfer. Unlike smaller or larger thread sizes, the M8 format is commonly specified for heavier engineering assemblies and support brackets.

Common Applications

  • heavier engineering assemblies and support brackets
  • Machine and equipment manufacture
  • Engineering and fabrication projects
  • Maintenance and repair operations

M8 Hex Countersunk Screw ISO 10642 Dimensions

  • Thread Size: M8
  • Length: 120mm
  • Pitch: 1.25mm
  • Head Diameter: 17.92mm
  • Head Height: 4.96mm
  • Drive: H5
  • Material: A4-70 Stainless Steel
  • Standard: ISO 10642
  • Head Style: Countersunk

View our full Countersunk Screw Range or browse our Screw collection.

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