Grant Coach Bolt M5 X 15 Wps31 Pack Of 8 Spira

Coach bolt This item is supplied in a pack of 8. M5 x 15

Grant Coach Bolt M5 x 15mm – WPS31 (Pack of 8)

Genuine Fixing Bolts for Grant Spira Biomass Boilers

The Grant WPS31 Coach Bolt Set includes eight M5 x 15mm coach bolts, specifically designed for secure assembly and maintenance of Grant Spira biomass boilers. These durable bolts are typically used to fasten critical components such as the flame hood, combustion door, or other internal fittings, ensuring safe and reliable operation of the system.

Whether you’re replacing worn or missing fixings or carrying out a full combustion chamber service, this OEM bolt set is ideal for restoring the structural integrity of your boiler.

Key Features & Benefits

• Official Grant OEM Part – WPS31
  Precision-manufactured to Grant's specifications for perfect fitment in Spira biomass models.

• Pack of 8 Coach Bolts
  Supplied as a full set of M5 x 15mm bolts for multi-point fixing applications.

• Corrosion-Resistant Finish
  Designed to withstand the demanding environment inside biomass heating systems.

• Secure & Durable Fixing
  Provides a tight, long-lasting hold for key combustion and access components.

• Essential for Servicing & Repairs
  Ideal for use when removing and reinstalling parts like the flame hood or cleaning access doors.

Compatible Grant Boiler Models

The WPS31 Coach Bolt Set is compatible with:

• ? Grant Spira 5kW – 36kW Biomass Boilers

If you're unsure whether this bolt set is right for your unit, contact our team with your model or serial number and we’ll confirm compatibility.

When to Replace or Use These Bolts

Use the WPS31 bolts if:

• You are reinstalling parts such as the flame hood (WPS29KIT) or combustion door

• Original bolts are damaged, missing, rusted, or seized

• You are completing a routine clean or internal service

• You're performing a retrofit or maintenance upgrade to ensure secure component fixing

Using the correct OEM bolts helps maintain safety standards, ensures proper alignment, and reduces the risk of future breakdowns.

Technical Specifications

• Part Number: WPS31

• Manufacturer: Grant UK

• Bolt Type: Coach bolt

• Dimensions: M5 x 15mm

• Quantity: Pack of 8 bolts

• Material: Steel with corrosion-resistant finish

• Application: Internal boiler component fixing (e.g., flame hood, combustion door)

• Compatibility: Grant Spira biomass boilers (5kW–36kW)