Description

Overview

The SAF Caliper Centring Bolt is an M16 x 1.5 x 55mm mounting fastener used in the pivot-retaining position on selected SAF-Holland disc brake axle assemblies. Featuring a 19mm locating shoulder, it helps position and secure the brake caliper against its mounting support.

This centring bolt differs from the standard collared caliper mounting bolt used alongside it. Both fasteners have an M16 thread, but their mounting functions and profiles are different.

Features

• 19mm locating shoulder for the caliper centring position.
• M16 x 1.5 metric fine thread with 55mm nominal length.
• Used in selected SAF disc brake assemblies with WABCO and Knorr-Bremse calipers.
• Individual replacement bolt for caliper mounting repairs.

Specifications and Materials

• Component: Caliper centring / pivot-retaining bolt
• Manufacturer application: SAF-Holland
• Thread: M16 x 1.5
• Nominal bolt length: 55mm
• Locating shoulder diameter: 19mm
• Mounting position: Caliper centring bolt
• SAF assembly position: 56.1
• Quantity per axle: 2 on applicable SAF assemblies

Part number: AP7599.

For caliper mounting arrangements and component identification, refer to the SAF-Holland trailer spare parts guide

Compatibility and Fitment

This centring bolt suits selected SAF Intradisc axle assemblies fitted with WABCO PAN19-1 and Knorr-Bremse SN6 or SN7 disc brake calipers. The correct application depends on the axle model and caliper mounting arrangement.

Unlike the standard collared mounting bolt, this fastener uses a locating shoulder at the pivot-retaining position. Therefore, matching the M16 thread and 55mm length alone is insufficient when identifying the correct replacement.

Check the axle identification, existing bolt profile and mounting position before fitting.

The following cross-reference numbers identify verified equivalent or replacement parts for this exact application. Confirm the selection-critical fitment details against the part being replaced before fitting.

4375100410

Related Parts

The following companion fastener is used at a different caliper mounting position on applicable SAF assemblies.

Compliance and Safety

Caliper mounting fasteners are safety-critical components. Inspect the threaded mounting holes, seating surfaces and caliper supports for damage before installation.

Use the specified replacement fasteners and follow the applicable SAF-Holland workshop procedure for tightening torque and installation sequence. Do not substitute an ordinary M16 bolt or the standard collared mounting bolt for this centring position.

Trailer Applications

This bolt supports caliper mounting repairs on compatible SAF-equipped semi-trailers and heavy commercial trailer axles. It is used when removing, replacing or refitting the disc brake caliper and its mounting hardware.

Cross-reference and Suitability

This part cross-references to the following manufacturer replacement part number:

Why Choose ICS Trailers

SAF disc brake assemblies can use both standard collared mounting bolts and separate centring bolts. Although they may share the same thread size and nominal length, the locating shoulder and mounting position make them different components.

ICS Trailers can assist with identifying the appropriate fastener when servicing a SAF caliper assembly.

• Compare the M16 x 1.5 thread, 55mm length and 19mm locating shoulder against the removed bolt.
• Send through the axle identification plate, caliper model or existing bolt measurements if you need help identifying the correct mounting hardware.

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