M8 x 30mm Socket Countersunk Screws (ISO 10642) - BUMAX 88


Key Features

  • 3 Year Extended Warranty.
  • Free Technical Support From Our Engineers.
  • Custom Dimensions Available Through Our Custom Manufacture Service.
  • Thread Size (T): M8 (8mm)
  • Overall Length (L): 30mm
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M8 x 30mm Socket Countersunk Screws (ISO 10642) - BUMAX 88 Technical Specification

M8 x 30mm Socket Countersunk Screws (ISO 10642) - BUMAX 88 Drawing
Countersunk Angle (CA)90 degrees
Countersunk Length (H)4.96mm
General Tolerance+/- 0.13mm
Head Diameter [max] (D)17.92mm
Hexagon A/F (J)5mm
Hexagon Depth (P)3mm
Manufacturing StandardISO 10642
MaterialSuper High Tensile Stainless Steel (Bumax)
Material SpecificationBUMAX 88
Metric or Imperial?Metric
Overall Length (L)30mm
Screw Thread Pitch1.25mm
Thread Size (T)M8 (8mm)

Product Certifications

Certificate of Conformity Included
Certificate of Conformity Included
RoHS Certified
RoHS Certified
REACH Certified
REACH Certified
Quality Approved

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M8 x 30mm Socket Countersunk Screws (ISO 10642) - BUMAX 88 Description

The M8 x 30mm Socket Countersunk Screws (ISO 10642) - BUMAX 88 has the following features:

  • M8 (8mm) Thread Size (T)
  • 3mm Hexagon Depth (P)
  • ISO 10642 Manufacturing Standard
  • 5mm Hexagon A/F (J)
  • 30mm Overall Length (L)
  • Super High Tensile Stainless Steel (Bumax) Material
  • BUMAX 88 Material Specification
  • 1.25mm Screw Thread Pitch
  • Natural Finish
  • +/- 0.13mm General Tolerance
  • Metric Metric or Imperial?
  • 17.92mm Head Diameter [max] (D)
  • 4.96mm Countersunk Length (H)
  • 90 degrees Countersunk Angle (CA)

Discover more about the Metric Socket Countersunk Screws range.

Countersunk Socket Head Screws feature a countersunk head type, which allows them to sit flush with their target housing. The socket head of these screws makes them ideal for use alongside Accu’s Hex Drive Bits or Allen Keys & Wrenches.

Countersunk Screws are designed to be used alongside pre-drilled countersunk recesses, which can be made with the use of angle cutters called Countersinks

Metric Socket Countersunk Screw Kits

Accu ProKits, our high quality range of fastener kits, feature Socket Countersunk Screw Kits, available in A2 Stainless Steel and Marine Stainless Steel.

With screw sizes M2, M2.5 & M3 (Micro) and M4, M5 & M6 (Small) as screw kit options, engineers and DIYers alike can be ready for their next project with our ultimate fastener kits.

Countersunk Captive Fasteners

Captive screw variants of Accu's Metric Countersunk Screws are available in A2 and A4 Stainless Steel, with other materials such as thermoplastic PEEK available on request.

Our range of Socket Countersunk Captive Screws are designed to be used in conjunction with Captive Washers to prevent the screws from falling out of housing assemblies and conform to EU Safety regulations.


Countersunk Socket Head Screws can be manufactured from a range of materials, including A2, A4 and Bumax Stainless Steel options as standard.

Accu also supplies Socket Countersunk Screws in 10.9 and 12.9 High Tensile Steel, with materials such as Titanium, Aluminium and PEEK available through our custom manufacture service.

Chemical Blackening is available on Stainless Steel screws, with Thread Locking Patches and various other finishes also available on request.

Security Screw Variant

For applications requiring a tamper-proof drive, this component is also available in a security variant, which can be found in Accu's Security Socket Countersunk Screws range. 

Metric Sizes

Accu’s Metric Socket Countersunk Screws are available in thread sizes ranging from M2 to M24, and lengths from 3mm up to 200mm.

Imperial Sizes

Imperial Countersunk Socket Screws are also available in diameters from #0 to 7/8 inch. Lengths are available from 1/8 inch up to 10 inches.

Minimum Thread Length

In accordance with DIN standard 7991, Accu's Socket Countersunk Screws are manufactured to a minimum specified thread length. Please contact us before placing your order if this dimension is critical to your application.

Shipping Information

Shipping Destinations:Worldwide.
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Weight Band (100 items):Between 1kg and 5kg. Add to cart to calculate exact weights.

Component History

Product First Available:Monday, February 15, 2016
Stock Last Updated:04:34 pm
Thursday, January 20, 2022
Specification Last Updated:Thursday, January 20, 2022

APC / Barcodes

APC (Accu Product Code):SSK-M8-30-BUMAX88
EAN13 (International Article No.):5057196343591
ASIN (Amazon Stock Identification No.):ASIN not defined.