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Screw

BMW Isetta rear axle

Screw Zoom

Screw

€5.40

incl. 19% VAT plus shipping

for flexible disk, original BMW
Technical data
Category
BMW Isetta rear axle
BMW part number
23211030532
Item number
4-070
Condition
New / unused original part
Weight
0.1 kg
In stock

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Philipp Schäper
Philipp Schäper BMW Isetta specialist Question about this item?
In stock Almost all parts available directly from stock
Original parts Original parts from workshop inventory
Specialists The specialists for BMW Isetta, 600 & 700
Worldwide shipping By DHL, UPS or freight forwarder — safely packed
Application

A Hardy disc screw is used to securely fasten the Hardy disc to the shaft and flange, thereby transmitting the drive forces via both form and force fit without damaging the rubber disc.

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General information about this item

Product info
The original BMW Hardy disc screw 4-070 with a flat head and SW14 is designed for the correct attachment of the Hardy disc to the rear axle of the BMW Isetta and prevents overloading or crushing of the rubber disc. During restoration, this special bolt should be used instead of any standard bolts and installed with the specified torque to prevent cracks, imbalance, and premature wear of the Hardy disc.

Database ID: 1513 Accessed on: 18.06.2026 13:48 Data state: 22.05.2026 12:33 In stock since: 18.11.2025