Overview
EN ISO 16585:2002 specifies dimensional, mechanical and application requirements for closed end blind rivets with a break pull mandrel and protruding head, designated A2/SSt (austenitic stainless-steel body A2 and stainless-steel mandrel SSt). The standard covers rivets with nominal diameters from 3.2 mm to 6.4 mm, including dimensions, grip ranges, material/finish, mechanical loads and acceptance criteria. This standard is identical to ISO 16585:2002 and is intended for manufacturers, designers and quality personnel working with stainless-steel blind rivets.
Key topics and requirements
- Scope and designation
- Applies to closed end blind rivets with pull mandrel and protruding head (A2/SSt); example designation: Blind rivet ISO 16585 - 4 × × × × 12 - A2/SSt.
- Dimensions and tolerances
- Nominal diameters: 3.2, 4.0, 4.8, 6.4 mm.
- Key formulae (Annex A):
- dmax = dnom + 0.08 mm; dmin = dnom − 0.15 mm
- dk max = 2.1 × dnom (rounded to 0.1 mm)
- kmax = 0.415 × dnom (rounded to 0.1 mm)
- Clearance hole dh1 = dnom +0.1 mm to dnom +0.2 mm
- Grip ranges and rivet lengths
- Recommended grip ranges for each nominal diameter and length are specified in the standard (see Table 1).
- Material and finish
- Rivet body: austenitic stainless steel per ISO 3506-1 (A2).
- Mandrel: stainless steel (SSt).
- Surface finish: plain (natural).
- Mechanical properties
- Minimum shear load, minimum tensile load and maximum mandrel break load are specified (tested per ISO 14589). Examples:
- 3.2 mm: shear 2 000 N, tensile 2 200 N, mandrel break 4 500 N
- 6.4 mm: shear 6 000 N, tensile 8 000 N, mandrel break 16 000 N
- Workmanship and acceptance
- Rivets must be free from burrs, have formed heads/shanks and show no cracking at 5× magnification. Acceptance testing follows ISO 3269 unless otherwise agreed.
Applications and users
- Typical users: fastener manufacturers, design/structural engineers, procurement and quality inspectors, OEMs in automotive, aerospace, electronics, building and HVAC industries.
- Practical uses: permanent blind fastening where corrosion resistance and sealed (closed-end) joints are required - e.g., panels, enclosures, thin-sheet assemblies and inaccessible-side installation.
Related standards
- ISO 3269 - Fasteners: acceptance inspection
- ISO 3506-1 - Mechanical properties of corrosion‑resistant stainless‑steel fasteners
- ISO 14588 - Blind rivets: terminology and definitions
- ISO 14589 - Blind rivets: mechanical testing
Keywords: EN ISO 16585:2002, closed end blind rivets, A2/SSt, stainless-steel rivets, pull mandrel, protruding head, rivet dimensions, shear load, tensile load, clearance hole.
