FprEN 6129
(Main)Aerospace series - Blind bolt, protruding head, high strength, pulltype
- Abstract
This document specifies the configuration, dimensions, tolerances and mass of a stainless steel blind bolt with protruding head for aerospace applications.
- Status
- Not Published
- Publication Date
- 03-Jan-2027
- Technical Committee
- ASD-STAN - Aerospace
- Drafting Committee
- ASD-STAN/D 3/S 2 - Fasteners
- Current Stage
- 5060 - Closure of Vote - Formal Approval
- Start Date
- 24-Sep-2026
- Completion Date
- 24-Sep-2026
FprEN 6129 is a CEN European standard for a stainless steel blind bolt with protruding head, high strength and pulltype installation for aerospace applications. It specifies the bolt's configuration, dimensions, tolerances, mass, strength data, grip range, material, finish, lubrication, marking and designation so designers, buyers and inspectors can use the same part definition.
What does FprEN 6129 specify?
FprEN 6129 covers the product definition for the aerospace blind bolt and organizes that definition into seven clauses plus a bibliography. Clause 4 carries the technical requirements; Clauses 5 to 7 cover identification, marking and the linked technical specification.
| Clause | What it covers |
|---|---|
| 1 | Scope |
| 2 | Normative references |
| 3 | Terms and definitions |
| 4 | Requirements |
| 5 | Designation |
| 6 | Marking |
| 7 | Technical specification |
The scope is focused on the stainless steel blind bolt itself for aerospace use, with the document giving the data needed to specify, make and check the part consistently.
What are the key requirements of FprEN 6129?
FprEN 6129's main requirements are in Clause 4, where the standard ties the fastener to figures and tables for geometry, performance and materials. In practice, this is the information a purchaser or inspector uses to confirm that the delivered parts match the approved design.
- Clause 4.1 links configuration, dimensions, tolerances, static strength, tensile preload and spindle retention to Figure 1, Figure 2, Table 1 and Table 2. This is the core fit-and-performance definition for the fastener.
- Figure 1 shows the main parts - serrated pin, locking collar, sleeve and the shifting anvil/drive washer option - and notes that the shifting anvil/drive washer is not part of the installed fastener. That matters when deciding what belongs to the delivered assembly and what belongs only to the installation tooling or option.
- Figure 2 notes that the blind-side head may be installed on a 7° max slope. This is useful when the joint surface is not perfectly perpendicular.
- Clause 4.2 sets grip range and mass in Table 3 and Table 4. Grip length code selection is how the user matches the fastener to joint stack thickness, while the mass table supports weight control and logistics.
- Clause 4.3 controls material, finish and lubrication through Table 5 and Table 6. The tables link the material code to the sleeve, serrated pin and locking collar material choices, the finish code for the sleeve, and permitted lubricants such as SAE AS5272, MIL-PRF-46010, SAE AS87132 and DOD-L-85645.
- Clause 5 gives the designation format, for example
BLIND BOLT EN 6129 C 05-02 H. This is the ordering language for procurement and part lists; the code tells the supplier the standard, material, diameter, grip length and sleeve finish. - Clause 6 sets marking to EN 2424 style B on the fastener head, with the EN standard number, grip length code and manufacturer identification required. The clause also allows the manufacturer to use a material code or part number instead of the EN number, and allows single-digit marking for grip length codes below 10.
- Clause 7 points to NASM8975 for the technical specification, except for the strength, preload and spindle retention requirements given in Table 2. This means the document inherits the general blind-fastener specification and then overrides the key mechanical values for this part.
What changed in FprEN 6129 from the previous edition?
FprEN 6129 will supersede EN 6129:2016. The stated changes are:
- Figure 1 and Figure 2 updated, with dimension Q removed.
- Dimension Q removed from Table 1.
- Tables 1, 2 and 3 corrected for single values, with hole limits removed.
- Tables 5 and 6 updated to match revised normative references and preferred options.
Which standards are used with FprEN 6129?
FprEN 6129 refers to several documents that supply marking, coating, lubrication, material and general fastener rules.
| Reference | What it contributes |
|---|---|
| EN 2424 | Marking of aerospace products |
| EN 4473 | Aluminium pigmented coatings for fasteners |
| DOD-L-85645 | Dry film lubricant |
| MIL-PRF-46010 | Heat-cured solid film lubricant, corrosion inhibiting |
| NASM8975 | General specification for blind, high strength, installation-formed fasteners |
| SAE AMS2700 | Passivation of corrosion resistant steels |
| SAE AMS5687 | Nickel alloy wire material |
| SAE AMS5690 | 316 corrosion- and heat-resistant steel wire |
| SAE AMS5737 | A286 corrosion- and heat-resistant steel material |
| SAE AS5272 | Solid film lubricant procurement specification |
| SAE AS87132 | Cetyl alcohol lubricant for fasteners |
What does the FprEN 6129 document contain?
FprEN 6129 contains Figures 1 and 2 for configuration and typical installation, and Tables 1 to 6 for dimensions, strength, grip range, mass, material options, finish codes and lubrication. It also includes a designation example in Clause 5 and a head-marking rule in Clause 6. For design, these tables provide the selectable codes and physical limits; for testing and inspection, they give the values and conditions to verify the part; and for procurement, they define the part number format and the linked surface-treatment options.
Relations
- Revises
EN 6129:2016/AC:2017 - Aerospace series - Blind bolt, protruding head, high strength, pulltype - Effective Date
- 06-Sep-2023
- Effective Date
- 06-Sep-2023
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Frequently Asked Questions
FprEN 6129 is a draft published by the European Committee for Standardization (CEN). Its full title is "Aerospace series - Blind bolt, protruding head, high strength, pulltype". This standard covers: This document specifies the configuration, dimensions, tolerances and mass of a stainless steel blind bolt with protruding head for aerospace applications.
This document specifies the configuration, dimensions, tolerances and mass of a stainless steel blind bolt with protruding head for aerospace applications.
FprEN 6129 is classified under the following ICS (International Classification for Standards) categories: 49.030.20 - Bolts, screws, studs; 49.030.60 - Rivets. The ICS classification helps identify the subject area and facilitates finding related standards.
FprEN 6129 has the following relationships with other standards: It is inter standard links to EN 6129:2016/AC:2017, EN 6129:2016. Understanding these relationships helps ensure you are using the most current and applicable version of the standard.
FprEN 6129 is available in PDF format for immediate download after purchase. The document can be added to your cart and obtained through the secure checkout process. Digital delivery ensures instant access to the complete standard document.
Standards Content (Sample)
SLOVENSKI STANDARD
oSIST prEN 6129:2024
01-oktober-2024
Aeronavtika - Slepa kovica, štrleča glava, visoka trdnost, povlečni tip
Aerospace series - Blind bolt, protruding head, high strength, pulltype
Luft- und Raumfahrt - Blindniet, Universalkopf, hochfest (Zugtyp)
Série aérospatiale - Boulon aveugle, tête protubérante, haute résistance, installation en
tirant
Ta slovenski standard je istoveten z: prEN 6129
ICS:
49.030.20 Sorniki, vijaki, stebelni vijaki Bolts, screws, studs
oSIST prEN 6129:2024 en,fr,de
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.
oSIST prEN 6129:2024
oSIST prEN 6129:2024
DRAFT
EUROPEAN STANDARD
prEN 6129
NORME EUROPÉENNE
EUROPÄISCHE NORM
July 2024
ICS 49.030.20 Will supersede EN 6129:2016
English Version
Aerospace series - Blind bolt, protruding head, high
strength, pulltype
Série aérospatiale - Boulon aveugle, tête protubérante, Luft- und Raumfahrt - Blindniet, Universalkopf,
haute résistance, installation en tirant hochfest (Zugtyp)
This draft European Standard is submitted to CEN members for enquiry. It has been drawn up by the Technical Committee ASD-
STAN.
If this draft becomes a European Standard, CEN members are bound to comply with the CEN/CENELEC Internal Regulations
which stipulate the conditions for giving this European Standard the status of a national standard without any alteration.
This draft European Standard was established by CEN in three official versions (English, French, German). A version in any other
language made by translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC
Management Centre has the same status as the official versions.
CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Türkiye and
United Kingdom.
Recipients of this draft are invited to submit, with their comments, notification of any relevant patent rights of which they are
aware and to provide supporting documentation.
Warning : This document is not a European Standard. It is distributed for review and comments. It is subject to change without
notice and shall not be referred to as a European Standard.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION
EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2024 CEN All rights of exploitation in any form and by any means reserved Ref. No. prEN 6129:2024 E
worldwide for CEN national Members.
oSIST prEN 6129:2024
prEN 6129:2024 (E)
Contents Page
European foreword . 3
1 Scope . 4
2 Normative references . 4
3 Terms and definitions . 4
4 Requirements . 5
4.1 Configuration, dimensions, tolerances and static strength, preload and spindle retention 5
4.2 Grip range and mass . 5
4.3 Material, finish and lubrication . 5
5 Designation . 16
6 Marking . 16
7 Technical specification . 16
Bibliography . 17
oSIST prEN 6129:2024
prEN 6129:2024 (E)
European foreword
This document (prEN 6129:2024) has been prepared by ASD-STAN.
After enquiries and votes carried out in accordance with the rules of this Association, this document has
received the approval of the National Associations and the Official Services of the member countries of
ASD-STAN, prior to its presentation to CEN.
This document is currently submitted to the CEN Enquiry.
This document will supersede EN 6129:2016.
The main changes compared to the previous edition are as follows:
a) Figure 1 and Figure 2 updated (dimension Q removed);
b) dimension Q removed in Table 1 accordingly;
c) Table 1, Table 2 and Table 3: Single values corrected and hole limits removed;
d) Table 5 and Table 6 updated according to updated normative references and preferred options.
oSIST prEN 6129:2024
prEN 6129:2024 (E)
1 Scope
This document specifies the configuration, dimensions, tolerances and mass of a stainless steel blind bolt
with protruding head for aerospace application.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements of this document. For dated references, only the edition cited applies. For
undated references, the latest edition of the referenced document (including any amendments) applies.
EN 2424, Aerospace series — Marking of aerospace products
EN 4473, Aerospace series — Aluminium pigmented coatings for fasteners — Technical specification
DOD-L-85645, Lubricant, Dry Film, Molecular Bonded
MIL-PRF-46010, Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting NATO Code – S-1738
NASM8975, Fastener, Blind, High Strength, Installation Formed, Cres, Heat Resistant Steel and Titanium,
General Specification for
SAE AMS2700, Passivation of Corrosion Resistant Steels
SAE AMS5687, Nickel Alloy, Corrosion- and Heat-Resistant, Wire 74Ni-15,5Cr-8,0Fe Annealed
SAE AMS5690, Steel, Corrosion and Heat Resistant, Wire, 17Cr-12N-2.5Mo (316), Solution Heat Treated
SAE AMS5737, Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings, Mechanical Tubing, and Stock for
Forging and Heading 15Cr-25,5Ni-1,2Mo-2,1Ti-0,006B-0,30V (A286) Consumable Electrode Remelted, 1650
°F (899 °C) Solution and Precipitation Heat Treated
SAE AS5272, Lubricant, Solid Film; Heat Cured, Corrosion Inhibiting Procurement Specification
SAE AS87132, Lubricant, Cetyl Alcohol, 1-Hexadecanol, Application to Fasteners
3 Terms and definitions
No terms and definitions are listed in this document.
ISO and IEC maintain terminology databases for use in standardization at the following addresses:
— ISO Online browsing platform: available at https://www.iso.org/obp/
— IEC Electropedia: available at https://www.electropedia.org/
Published by Department of Defense (DoD), available at: https://assist.dla.mil/.
Published by Aerospace Industries Association (AIA), available at: https://www.aia-aerospace.org/.
Published by: Society of Automotive Engineers (SAE), available at: https://www.sae.org/.
oSIST prEN 6129:2024
prEN 6129:2024 (E)
4 Requirements
4.1 Configuration, dimensions, tolerances and static strength, preload and spindle
retention
The configuration, dimensions, tolerances, static strength, tensile preload and spindle retention shall
conform to Figure 1, Figure 2, Table 1 and Table 2.
4.2 Grip range and mass
Grip range and mass shall be according to Table 3 and Table 4.
4.3 Material, finish and lubrication
Material, finish and lubrication shall be according to Table 5 and Table 6.
a) Bolt configuration
oSIST prEN 6129:2024
prEN 6129:2024 (E)
b) Serrated pin geometry
Key
1 marking see Clause 6
2 serrated pin
3 locking collar
4 grip
5 sleeve
6 shifting anvil
a
Diameter of serrated pin head shall not exceed “⌀D” max.
b
Fasteners are supplied with shifting anvil/drive washer of manufacturer’s option. The shifting anvil/drive
washer is not part of the installed fastener.
c
optional configuration
Figure 1 — Configuration, Dimensions
oSIST prEN 6129:2024
prEN 6129:2024 (E)
Key
1 grip
a
Blind side head may be installed on 7° max. slope.
Figure 2 — Typical installation
oSIST prEN 6129:2024
prEN 6129:2024 (E)
Table 1 — Dimensions and tolerances
Dimensions in mm (inch)
Diameter code
05 06 08
max. 8,33 10,01 13,34
7,52 9,04 12,07
min.
⌀A
(0,328) (0,394) (0,525)
(0,296) (0,356) (0,475)
max. 1,96 2,29 2,97
1,70 2,03 2,72
B
(0,077) (0,090) (0,117)
min.
(0,067) (0,080) (0,107)
±0,03 4,14 5,03 6,58
⌀D
(±0,001) (0,163) (0,198) (0,259)
±0,13 9,53 9,53 9,53
a
⌀J
(±0,005) (0,375)
...