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Black Ball Seat Wheel Bolts Engineered for Mercedes Platforms and Wheel Spacer Builds
The H&R HRS1454502SW wheel bolts are precision-machined M14x1.5 fasteners with a 45mm overall length, Mercedes-type ball seat head, 17mm hex, and a black finish, sold as a set of 10. The HRS1454502SW serves as OEM replacement hardware or as the specified extended-length wheel bolt when installing H&R Trak+ wheel spacers on Mercedes-Benz and compatible European vehicles. The 45mm length provides the thread engagement required for single spacer installation scenarios. Grade 10.9 steel construction ensures the clamping strength demanded by performance and daily driving applications. The black finish delivers a stealth appearance that works with both factory and aftermarket wheel designs.
Key Features
- M14 x 1.5 thread for Mercedes and compatible European platforms
- 45mm length for spacer installations and extended OEM replacement
- Mercedes ball seat head for correct wheel seat engagement
- 17mm hex head for standard socket use
- Black finish for stealth appearance
- Grade 10.9 high-strength steel construction
- Set of 10
Specifications
| Detail | Value |
|---|---|
| Part Number | HRS1454502SW |
| MPN | HRS1454502SW |
| Thread Size | M14 x 1.5 |
| Length | 45mm |
| Seat Type | Mercedes Ball Seat (Type R) |
| Hex Size | 17mm |
| Finish | Black |
| Grade | 10.9 |
| Quantity | Set of 10 |
| Brand | H&R Springs |
| UPC | Not specified |
What's Included
- 10x H&R HRS1454502SW wheel bolts (M14x1.5, 45mm, Mercedes ball seat, 17mm hex, black)
About H&R Springs
H&R Springs is a German manufacturer with over 40 years of experience in precision suspension and wheel fastener engineering. H&R wheel bolts are manufactured to grade 10.9 steel standards and cover a comprehensive range of thread sizes, lengths, and seat types for European and other platforms. H&R fasteners are widely used in both OEM replacement and wheel spacer build applications across the automotive aftermarket.
Frequently Asked Questions
What is the difference between the HRS1454502SW (45mm) and HRS1454702SW (47mm)?
The HRS1454502SW is 45mm in length while the HRS1454702SW is 47mm. The 2mm difference is specified for different spacer thicknesses or OEM applications requiring slightly different thread engagement. Always verify the correct length for your spacer and vehicle combination before ordering.
Can the HRS1454502SW be used as a straight OEM replacement?
The HRS1454502SW can replace factory wheel bolts wherever M14x1.5 Mercedes ball seat bolts of 45mm length are specified. Confirm the length matches your vehicle's OEM specification before installing.
What seat type is the Mercedes ball seat?
The Mercedes ball seat (Type R) is a radius-style seat with a rounded contact surface between the bolt head and the wheel. It is not interchangeable with tapered seat bolts. Always match the seat type to your wheel's specified geometry.
Is the black finish on the HRS1454502SW durable?
The black finish provides moderate corrosion resistance suitable for normal driving conditions. Inspect bolts periodically if operated in high-salt environments and replace if corrosion develops.
What torque should I apply to the HRS1454502SW?
Use your vehicle manufacturer's specified wheel bolt torque, typically 110-130 Nm for most Mercedes-Benz models. Verify against your specific model's service manual.
How many sets do I need for a full wheel installation?
One set of 10 covers two wheels on a 5-lug vehicle. For full four-wheel coverage you will need two sets (20 bolts).
Are H&R wheel bolts suitable for track use?
Yes. Grade 10.9 H&R wheel bolts are manufactured to the same standards as OEM fasteners and are widely used on track-day vehicles. Inspect and replace any bolt showing thread wear or damage.
Do I need the 45mm or 47mm bolt for my H&R spacer?
The correct length depends on your spacer thickness and the thread engagement remaining in the wheel hub after the spacer is accounted for. H&R provides fitment guidance for spacer and bolt combinations, or consult a certified installer for your specific application.
Installation Instructions
- Confirm thread size (M14x1.5) and Mercedes ball seat type match your vehicle and wheel requirements.
- Clean hub threads and wheel bolt holes of any dirt, corrosion, or residue.
- Thread bolts in by hand to confirm smooth engagement without cross-threading.
- Using a 17mm socket and torque wrench, tighten in a star pattern to your vehicle's factory specification.
- Recheck torque after the first 50 miles following any wheel removal or spacer installation.
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