Overview
ISO 14584:2011 specifies the characteristics of hexalobular socket raised countersunk head screws of product grade A with metric thread sizes from M2 to M10. This International Standard defines dimensions, head and socket gauging, material and mechanical-property references, tolerances and general requirements needed to ensure interchangeability and acceptance of these fasteners.
Key Topics
- Scope and sizes: Applies to hexalobular socket raised countersunk head screws, thread sizes M2 up to and including M10.
- Dimensions and head geometry: Head and socket dimensions are given (see Figure 1, Table 1 in the standard). Gauging for countersunk heads follows ISO 7721 and socket acceptance follows ISO 10664.
- Materials and mechanical properties: Material options include carbon steel, stainless steel and non‑ferrous metals. Mechanical-property classes referenced include e.g. 4.8 for carbon steel and stainless grades such as A2-70 / A3-70, with relevant mechanical requirements taken from ISO 898-1, ISO 3506-1 and ISO 8839.
- Threads and tolerances: Thread forms and tolerances reference ISO 261 and ISO 965-2 (general-purpose metric threads), with tolerance class and product grade requirements per ISO 4759-1.
- Surface finish and coatings: Electroplated coatings are covered by ISO 4042; non‑electrolytically applied zinc flake coatings by ISO 10683. Surface discontinuity limits are referenced in ISO 6157-1.
- Acceptance and inspection: Acceptance inspection procedures are referenced in ISO 3269.
- Designation: Example format - Hexalobular socket raised countersunk head screw ISO 14584 - M5 × 20 - 4.8.
Applications
- Ensures consistent manufacturing and quality control for hexalobular socket raised countersunk head screws used where a low-profile countersunk head and a hexalobular drive are required.
- Useful to fastener manufacturers, OEM design engineers, purchasing/procurement teams, and quality/inspection departments who need clear dimensional, material and acceptance criteria.
- Facilitates interoperability and specification compliance across supply chains that use metric fasteners (M2–M10).
Related Standards
Keywords: ISO 14584:2011, hexalobular socket raised countersunk head screws, metric screws M2–M10, product grade A, fastener standards, hexalobular socket.
