M4 Solid Countersunk Washers (NF E 27-619) - Black Marine Stainless Steel (A4) Description
The M4 Solid Countersunk Washers (NF E 27-619) - Black Marine Stainless Steel (A4) has the following features:
NF E 27-619 Manufacturing Standard
Marine Stainless Steel (A4) Material
Marine Stainless Steel (A4) Material Specification
90 Degrees Countersunk Angle
Matte Black Finish
Metric Metric or Imperial?
11mm External Diameter (D)
M4 (4mm) Size
2.5mm Washer Height (K)
8mm Countersunk Diameter (M)
4.3mm Internal Diameter (N)
Discover more about the Metric Solid Countersunk Washers range.
Metric Countersunk Washers are designed as an alternate method of preparing a flat surface for use with countersunk screws. Countersunk Washers are primarily used for aesthetic reasons, or to allow Countersunk Screws to be used with flat surfaces. These components are machined into a solid shape with a flat base, which also enhances the load-bearing capabilities of a countersunk fastener.
For a lightweight stamped variant of this component, please see Accu's Finishing Washers range.
Countersunk Washer Materials
These components can be manufactured from AccuScrews’ full range of materials, including Aluminium, Brass, Phosphor Bronze and PEEK Thermoplastic. Chemical Matte Black Coatings can also be applied to all Stainless Steel components.
Metric Countersunk Washers
Countersunk Washers are available in metric sizes of between M3 and M10. Non-standard sizes can also be custom manufactured on customer request. Countersunk Washers are manufactured with a 90 degree countersink as standard. If alternative dimensions or countersunk angles are required, please contact us.