Serpent 801555 Countersunk Screw and Washer Set  [SER801555]

Serpent SER801555 Engine screws/washers (4)
Price:
£6.17
Brand:
Serpent
Model:
SER801555
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Engine Fasteners for Secure Mounting

Proper fasteners stop engine movement and protect mounting points during hard use. The Serpent 801555 Engine Screws & Washers Set is specified for Impulse engine mounts and includes four M4x12 countersunk screws plus aluminium washers for a neat, reliable fit.

Consistent Fit and Low Weight

The screws are produced to consistent dimensions so heads sit flush and alignment is maintained. Aluminium washers reduce extra mass while spreading clamping forces to help prevent damage to the mount surface under load.

Useful for Repairs and Rebuilds

Keep the Serpent 801555 set in your spares to handle routine rebuilds or quick roadside repairs. The familiar M4 sizing makes it simple to replace worn or lost fasteners and restore correct engine positioning.

Are these the correct length for standard Impulse mounts?

Yes, the M4x12 length is intended for standard Impulse mount thicknesses, providing secure engagement without protruding beyond the mount surface.

How do I avoid stripping the mount threads?

Use the correct driver, apply steady torque, and avoid over tightening. If threads are worn, consider installing helicoil inserts or replacing the mount to restore reliable thread engagement.

Can I use different washer materials for extra durability?

Steel washers will increase durability but add weight and may introduce galvanic corrosion depending on surrounding materials. Aluminium washers are a balanced choice for performance and longevity.

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