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ASAB DDP18 Replacement Parts #6 - M8x25 Hex Socket Screw
Australian Spray & Blast

ASAB DDP18 Replacement Parts #6 - M8x25 Hex Socket Screw

Sale price$2.50

Part Code: ASAB-SDDP18-6

Introducing the DDP18 M8x25 Hex Socket Screw — a high-strength fastener used across ASAB DDP18 double diaphragm pump assemblies to clamp housings, plates, and valve components securely under vibration and repeated cycling. This socket-head cap screw format is ideal for pump builds because it provides strong, consistent clamping force and is easy to service with a hex key in tight spots.

If a pump has been apart a few times, screws can end up rounded, stretched, corroded, or contaminated with product, which leads to poor torque retention, uneven sealing, and repeat leaks. Replacing worn fasteners with the correct M8×25 socket screw helps ensure proper assembly alignment, gasket compression, and long-term reliability.

Whether you’re rebuilding a wet end, refreshing hardware during preventative maintenance, or replacing a bolt that’s been flogged out by the previous “tight is good, tighter is better” approach, the ASAB-SDDP18-6 is the right fastener to keep your DDP18 clamped up properly.

Key Benefits

  • Correct replacement fastener for ASAB DDP18 assemblies

  • M8 × 25mm sizing for proper fit and clamp load

  • Hex socket head for easy service access and reliable tool engagement

  • Helps maintain even clamping pressure for better sealing and alignment

  • Ideal replacement for screws that are rounded, stretched, corroded, or seized

  • Supports reliability under vibration and repeated pump cycling

  • Workshop-ready spare for fast rebuilds and repairs

What’s Included

  • DDP18 M8×25 Hex Socket Screw — ASAB-SDDP18-6

Safety Check

  • Isolate and depressurise first: Shut off air supply, bleed the airline fully, and confirm the pump is not pressurised before disassembly.

  • Use the correct hex key: A sloppy key rounds socket heads fast — clean the socket and use the correct size.

  • Don’t over-torque: Over-tightening can strip threads or warp housings and cause leaks. Tighten evenly in a cross pattern where applicable.

  • Check thread condition: If threads in the housing are damaged, replacing the screw alone won’t hold — inspect and repair threads as needed.

  • Replace as a set where possible: Mixing old stretched screws with new can cause uneven clamp loads.

  • Test after assembly: Bring air pressure up slowly and check for leaks or abnormal cycling before returning to service.

ASAB – Engineered for Performance, Built to Last.
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