EN 6128:2017

Aerospace series - Blind bolt, 100° flush head, high strength

This European Standard specifies the configuration, dimension, tolerances and mass of a stainless steel blind bolt with 100° flush head for aerospace application.

Luft- und Raumfahrt - Blindniet 100° Senkkopf, hochfest

Diese Europäische Norm legt die Ausführung, Maße, Toleranzen und Masse von Blindnieten aus nichtrostendem Stahl mit 100° Senkkopf für die Anwendung in der Luft- und Raumfahrt fest.

Série aérospatiale - Boulon aveugle tête fraisée 100°, haute résistance

Aeronavtika - Slepa kovica, 100° ugrezna glava, zelo trdna

Ta evropski standard določa konfiguracijo, mere, tolerance in maso slepih kovic iz nerjavnega jekla s 100° vgrezno glavo za uporabo v aeronavtiki.

General Information

• Status: Published
• Publication Date: 03-Oct-2017
• Withdrawal Date: 29-Apr-2018
• ICS: 49.030.99 - Other fasteners
• Technical Committee: ASD-STAN - Aerospace
• Drafting Committee: ASD-STAN/D 3/S 2 - Fasteners
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 04-Oct-2017
• Completion Date: 04-Oct-2017
• Ref Project: SIST EN 6128:2017 - Aerospace series - Blind bolt, 100° flush head, high strength

Relations

• Revised: prEN 6128 - Aerospace series - Blind bolt, 100° flush head, high strength
• Effective Date: 06-Sep-2023

Overview

EN 6128:2017 is a CEN European Standard for an aerospace series blind bolt with a 100° flush (countersunk) head, intended for high‑strength applications. The standard specifies the bolt’s configuration, dimensions, tolerances and mass for stainless steel blind bolts used in aerospace structures. It is intended to ensure interchangeability, performance and clear procurement/marking practices for blind fasteners where access to the blind side is required.

Key topics and technical requirements

• Geometry & configuration: Detailed drawings for sleeve, serrated pin, locking collar and head geometry are provided (including serrated pin detail). The standard notes optional shifting anvil/drive washer supplied at manufacturer’s option and clarifies it is not part of the installed fastener.
• Dimensions & tolerances: Full dimension tables (diameter codes, hole limits, head sizes, reference dimensions) and tolerances are defined so components meet aerospace interchangeability requirements.
• Grip range & mass: Grip range tables and mass per 1 000 pieces are specified by diameter and grip length code for accurate material planning and weight budgeting.
• Static strength values: Minimum performance values are given. For example, installed strength ranges from 8.811 kN (diameter code 05) up to 46.191 kN (code 12); single shear, tensile strength, tensile preload and spindle retention minima are listed in Table 2.
• Materials, finish & lubrication: Acceptable materials include stainless steels and A‑286/Inconel variants referenced to AMS and SAE/DOD specifications (e.g., AMS 5690, AMS 5737, AMS 5687). Surface finishes (passivation per AMS‑QQ‑P‑35, Hi‑Kote aluminium pigmented coating per EN 4473) and approved lubricants/solid film treatments (AS 5272, MIL‑PRF‑46010, MIL‑L‑87132, DOD‑L‑85645) are referenced.
• Installation notes: Blind‑side head may seat on up to 7° slope (reduced to 5° for larger diameter codes 10 and 12).
• Marking & designation: Marking per EN 2424 (EN number, grip length code and manufacturer ID) and designation examples are provided. Technical specification guidance references NASM 8975 except where strength requirements differ.

Applications and users

• Typical use: high‑strength blind joining in aircraft primary and secondary structures where access to both sides is restricted (e.g., ribs, stringers, nacelles, panels).
• Primary users: aerospace fastener manufacturers, design engineers, structural engineers, procurement/specification writers, quality assurance and MRO (maintenance, repair & overhaul) teams.

Related standards

• EN 2424 (marking), EN 4473 (coatings), NASM 8975 (fastener technical specification), AMS 5687 / AMS 5690 / AMS 5737, AMS‑QQ‑P‑35, MIL‑PRF‑46010, MIL‑L‑87132.

Keywords: EN 6128:2017, blind bolt, 100° flush head, aerospace fastener, stainless steel blind bolt, grip range, aerospace standard, A‑286, AMS 5690, EN 2424.

Standards Content (Sample)

2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.Aeronavtika - Slepa kovica, 100° ugrezna glava, zelo trdnaLuft- und Raumfahrt - Blindniet 100° Senkkopf, hochfetSérie aérospatiale - Boulon aveugle tête fraisée 100° haute résistanceAerospace series - Blind bolt, 100° flush head, high strength49.030.20Sorniki, vijaki, stebelni vijakiBolts, screws, studsICS:Ta slovenski standard je istoveten z:EN 6128:2017SIST EN 6128:2017en,fr,de01-december-2017SIST EN 6128:2017SLOVENSKI
STANDARD
EUROPEAN STANDARD NORME EUROPÉENNE EUROPÄISCHE NORM
EN 6128
October
t r s y ICS
v {ä r u rä { { English Version
Aerospace series æ Blind boltá
s r r ¹ flush headá high strength Série aérospatiale æ Boulon aveugle tête fraisée
s r r ¹á haute résistance
Luftæ und Raumfahrt æ Blindniet
s r r ¹ Senkkopfá hochfetThis European Standard was approved by CEN on
t July
t r s yä
egulations which stipulate the conditions for giving this European Standard the status of a national standard without any alterationä Upætoædate lists and bibliographical references concerning such national standards may be obtained on application to the CENæCENELEC Management Centre or to any CEN memberä
translation under the responsibility of a CEN member into its own language and notified to the CENæCENELEC Management Centre has the same status as the official versionsä
CEN members are the national standards bodies of Austriaá Belgiumá Bulgariaá Croatiaá Cyprusá Czech Republicá Denmarká Estoniaá Finlandá Former Yugoslav Republic of Macedoniaá Franceá Germanyá Greeceá Hungaryá Icelandá Irelandá Italyá Latviaá Lithuaniaá Luxembourgá Maltaá Netherlandsá Norwayá Polandá Portugalá Romaniaá Serbiaá Slovakiaá Sloveniaá Spainá Swedená Switzerlandá Turkey and United Kingdomä
EUROPEAN COMMITTEE FOR STANDARDIZATION COMITÉ EUROPÉEN DE NORMALISATION EUROPÄISCHES KOMITEE FÜR NORMUNG
CEN-CENELEC Management Centre:
Avenue Marnix 17,
B-1000 Brussels
t r s y CEN All rights of exploitation in any form and by any means reserved worldwide for CEN national Membersä Refä Noä EN
x s t zã t r s y ESIST EN 6128:2017

2 Contents
Page European foreword . 3 1 Scope . 4 2 Normative references . 4 3 Requirements . 4 3.1 Configuration, dimensions and tolerances . 4 3.2 Grip range and weight . 4 3.3 Material, finish and lubrication . 5 4 Designation. 13 5 Marking . 14 6 Technical specification . 14
4 1 Scope This European Standard specifies the configuration, dimension, tolerances and mass of a stainless steel blind bolt with 100° flush head for aerospace application. 2 Normative references The following documents, in whole or in part, are normatively referenced in this document and are indispensable for its application. 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 specification1) AS 5272, Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting, Procurement Specification2) AMS 5687, Nickel Alloy, Corrosion and Heat Resistant, Wire 74Ni 15.5Cr 8.0Fe, Annealed2) AMS 5690, Steel, Corrosion and Heat Resistant, Wire 17Cr-12Ni-2.5Mo (316) Solution Heat Treated2)
AMS 5737, Steel, Corrosion and Heat Resistant, Bars, Wire, Forgings and Tubing 15Cr 25.5Ni 1.2Mo 2.1Ti 0.006B 0.30V, Consumable Electrode Melted, 1650 °F (899 °C), Solution and Precipitation Heat Treated2) AMS-QQ-P-35, Passivation Treatments for Corrosion-Resistant Steel2) MIL-PRF-46010, Lubricant, Solid Film, Heat Cured, Corrosion Inhibiting NATO Code — S-17383) MIL-L-87132, Lubricant, CETYL Alcohol, 1-Hexadecanol, Application to Fasteners3) NASM 8975, Fastener, blind, high strength, installation formed corrosion resistant steel, heat resistant steel and titanium — General specification for3) DOD-L-85645, Lubricant, dry film, molecular bonded3) 3 Requirements 3.1 Configuration, dimensions and tolerances The configuration, dimensions, tolerances, static and dynamic values shall conform to Figure 1 and Figure 2 and Table 1 and Table 2. 3.2 Grip range and weight See Table 3 and Table 4.
1) Published as ASD-STAN pre-standard at the date of publication of the present standard. www.asd-stan.org 2) Published by: Society of Automotive Engineers (SAE), 400 Commonwealth drive, Warrendale, PA 15096-0001, USA 3) Published by: Department of Defense (DOD), the Pentagon, Washington, D.C. 20301. SIST EN 6128:2017

6 Detail of serrated pin geometry:
Detail A Detail A
Optional configuration Key 1 Marking see clause 5 2 Serrated pin 3 Sleeve 4 Grip 5 Locking collar 6 Shifting Anvil 7 Drive washer a Diameter of pin head shall not exceed “Î 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. Figure 1 — Configuration – Dimensions SIST EN 6128:2017

Key 1 Grip a Blind side head may be installed on 7° max slope; 5° max slope for diameter code 10 and 12. Figure 2 — Typical installation SIST EN 6128:2017

8 Table 1 — Dimensions and tolerances Dimensions in mm (inch) Diameter code ÎA B C ÎD ÎJa
N Q ÎD1 ÎD2 ÎW H Pb ÎP2
Theor.
max.
Ref. Ref. max. ±0,025 (±.001) ±0,127 (±.005) ±1,52 (±.060) ±0,13 (±.005) max. max. Gage dia. Gage height max. min.
05 8,48 (.334) 1,88 (.074) 0,28 (.011) 4,14 (.163) 9,53 (.375) 3,56 (.140) 1,70 (.067) 3,05 (.120) 2,16 (.085) 7,193 7,188 (.2832) (.2830) 0,523 0,434 (.0206) (.0171) 7,62 (.300) 5,66 (.223)
06 9,83 (.387) 2,08 (.082) 0,33 (.013) 5,03 (.198) 9,53 (.375) 4,06 (.160) 2,21 (.087) 3,81 (.150) 2,7 (.110) 8,311 8,306 (.3272) (.3270) 0,617 0,521 (.0243) (.0205) 8,13 (.320) 6,86 (.27)
08 12,90 (.508) 2,74 (.108) 0,43 (.017) 6,58 (.259) 9,53 (.375) 4,83 (.190) 2,79 (.110) 4,83 (.190) 3,66 (.144) 10,973 10,968 (.4320) (.4318) 0,787 0,686 (.0310) (.0270) 9,40 (.370) 8,89 (.35)
10 16,13 (.635) 3,56 (.140) 0,51 (.020) 7,90 (.311) 11,13 (.438) 3,94 (.155) 3,35 (.132) 5,88 (.231) 4,62 (.182) 13,846 13,840 (.5451) (.5449) 0,932 0,826 (.0367) (.0325) 8,89 (.350) 9,47 (.373)
12 19,38 (.763) 4,27 (.168) 0,58 (.023) 9,47 (.373) 12,70 (.500) 4,95 (.195) 4,01 (.158) 7,06 (.278) 5,69 (.224) 16,718 16,713 (.6582) (.6580) 1,087 0,965 (.0428) (.0380) 10,29 (.405) 11,38 (.448)
Diameter code R S J1 J2 X E C1 C2 F G Hole limits
min.
max. max. ±0,76 ±.030) Number of serrations ±0,76 (±.030) min. Ref. ±0,05 (±.002) ±5° ±5° min. max.
05 0,25 (.010) 5,89 (.232) 20,32 (.800) 18 1,52 (.060) 0,13 (.005) 0,33 (.013) 0,81 (.032) 45° 30° 4,17 (.164) 4,24 (.167)
06 0,38 (.015) 7,42 (.292) 21,08 (.830) 19 1,78 (.070) 0,13 (.005) 0,33 (.013) 0,81 (.032) 45° 30° 5,06 (.199) 5,13 (.202)
08 0,51
...