Maypole Towball - 50mm - 500A
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B&QB&Q - Heavy Duty 50mm Towball Silver E Approved High Reach Towing 17.2Kn Strength
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Standard 50mm Tow Ball - M16 Mounting Holes At 90Mm Centres - Maypole 500AFree delivery in 1–3 days£19.04Visit shop →
OnBuy.comMaypole 500 Dp Towball D17.2 S350, 50 Mm 5013008005002
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Product Information
Full details
The Maypole 50mm Heavy Duty Towball (500A) is an essential towing accessory for vehicle owners requiring a robust, reliable connection for heavy-duty trailers and caravans. Designed for users who prioritize safety and regulatory compliance, this towball offers excellent structural integrity; however, users must ensure their vehicle's tow bar mounting plate is compatible with the standard 90mm bolt-hole spacing before purchase.
All features
| Model Part Number | 500A |
|---|---|
| Brand | Maypole |
Extended Product Information
FAQs
What is the standard fixing center distance for this towball?
The Maypole 500A uses standard 90mm fixing centers.
What grade of bolts should I use for installation?
You must use BS3692 Grade 8.8 High-Tensile M16 bolts.
Is this towball E-approved?
Yes, it meets UN/ECE Regulation 55 standards.
What is the correct torque setting for the mounting bolts?
The bolts should be torqued to 240 Nm.
What is the maximum nose weight (S-value) for this product?
This towball supports an S-value of 350kg.
Can I use standard zinc-plated bolts for installation?
No, you must use high-tensile Grade 8.8 bolts as specified to ensure the safety and mechanical integrity of the mounting.
Troubleshooting
Towball feels loose during inspection
Immediately check the torque of the M16 bolts. If they have backed off, retorque them to exactly 240 Nm.
Surface rust appearing on the ball
Clean with a wire brush and apply a thin layer of grease or a protective cover when not in use to prevent further oxidation.
Bolt holes do not align
Verify your mounting plate has the standard 90mm fixing center measurement; this product is not compatible with alternative spacing.
Pros and Cons
Pros
- Meets rigorous UN/ECE Regulation 55 safety standards
- High D-value and S-value ratings for heavy-duty performance
- Standardized 90mm hole centers for easy compatibility
- Durable design built for consistent, long-term use
Cons
- Requires specific M16 Grade 8.8 high-tensile bolts
- Installation requires precise torque settings to maintain safety
- Not compatible with tow bars lacking the 90mm center spacing
Setup, Compatibility & Care
Installation requires 2 x M16 bolts. To ensure safety, you must use BS3692 Grade 8.8 High-Tensile bolts paired with appropriate lock washers.
- Align the towball with the mounting plate holes (90mm centers).
- Insert the M16 bolts with washers.
- Tighten to a precise torque setting of 240 Nm using a calibrated torque wrench.
For ongoing care, regularly inspect the surface of the ball for signs of excessive wear or corrosion. Perform routine checks on the mounting bolts to ensure they remain tightened to the 240 Nm specification, especially before and after long journeys.