When choosing bolts and mounting hardware for running boards, durability, compatibility, and weather resistance matter most. This guide highlights five solid options that cover common sidestep installations, from universal body bolts to vehicle-specific kits. They’re suitable for a range of buyers: DIY enthusiasts, pro installers, and truck/SUV owners who want reliable, long-lasting mounting hardware. Below, you’ll find concise product summaries, practical pros and cons, and a buying guide to help you compare features side-by-side.
Buying quick reference: the table lists each product’s key fit, best-use scenario, and notable considerations to help you decide at a glance.
| Product | Best For | Notable Considerations |
|---|---|---|
| RED WOLF Body Bolts & U Nuts Kits | GM Ford Chrysler universal uses | Includes bolts and U-nuts; check compatibility with your model |
| CHENACC Sidestep Hardware Mounting Kit | 2013-2019 Dodge RAM with tubular steps | Coated for rust resistance; designed for long-term outdoor use |
| Arkounix 50 Pcs Body Bolts & U-Nut Clips Kit | General purpose underbody and fender work | Universal set; matches multiple hardware sizes |
| Zhengmy 12 Pcs T Slot Bolts | Roof racks and track systems | Stainless steel; precise M6 thread |
| Camotokiit Jeep Side Step Hardware | Jeep Wrangler JK JL or similar | Heavy-duty bolts; includes free-spinning washer nuts |
RED WOLF M8-1.25 Body Bolts & U Nuts Kits
Best for: vehicles requiring M8-1.25 fasteners with U-nut compatibility, including GM, Ford, and Chrysler models. This kit provides a direct replacement option for common GM part numbers like 11501188, 11500661, and 11503317, plus additional compatible applications.
Why it’s a solid pick: The kit includes 10 bolts with free-spinning washers and 10 U retainers. The flange bolts measure M8-1.25 x 21 mm, with a 23.6 mm washer diameter and a 33 x 17.3 mm U-clip. These dimensions support a robust, vibration-resistant fit for body panels, bumpers, and fender liners.
Limitations: While versatile, always verify the exact bolt size and U-clip compatibility with your specific running board brackets before installation. Mis-matched sizes can lead to insufficient clamping force or fitment gaps.
CHENACC Sidestep Hardware Mounting Kit
Best for: 2013-2019 Dodge RAM 1500/2500/3500 and 4500/5500 with tubular sidesteps where OEM mounting studs may vary. This kit is tailored for those mounting side steps with diverse stud placements.
Why it’s a solid pick: The set uses Dacromet-coated hardware for rust resistance and high-strength steel to withstand off-road conditions. It includes high-strength bolts with appropriate classes for vertical and horizontal mounts, matching typical OEM replacement needs.
Limitations: Confirm the exact OEM number (68193128AB) and your vehicle year/model to avoid mismatches, as some RAM configurations differ in stud placement or step design.
Arkounix 50 Pcs Body Bolts & U-Nut Clips Kit
Best for: universal underbody and body panel mounting, especially when replacing multiple clips across fenders, bumpers, and engine shields. A ready-to-use kit for common engine splash shields and fender liner mounting points.
Why it’s a solid pick: Includes 25 hex head bolts and 25 U-nut clips, offering a one-stop solution for replacements. The threaded clips provide a secure hold, minimizing panel loosening during vibration and daily driving.
Limitations: It’s a universal kit, so some clips may not perfectly match your exact OEM hardware. Double-check thread types and sizes before mixing with existing fasteners.
Zhengmy 12 Pcs T Slot Bolts
Best for: roof rack systems and track accessories that use M6 screws with T-slot bolts. Although not a sidestep kit, these bolts are common in accessory mounting for crossbars and rails that can influence overall running board alignment when used in conjunction with side steps.
Why it’s a solid pick: The kit is built from quality 304 stainless steel with precise M6 threads, guaranteeing resistance to rust and consistent engagement with corresponding nuts and washers.
Limitations: Not a direct replacement for typical sidestep mounting hardware; use where your application calls for T-slot track bolts and track nuts.
Camotokiit Jeep Side Step Hardware
Best for: Jeep Wrangler JK/JL or similar vendors where side steps require flexible mounting with free-spinning washer nuts. Suitable for outdoor use and rugged environments.
Why it’s a solid pick: The kit includes heavy-duty bolts with corrosion-resistant coatings and complete OEM-style replacement hardware for secure sidestep installation. It’s designed to endure off-road conditions and repeated flexing.
Limitations: Check compatibility with your exact Jeep year and model, as some late-model variants use different stud patterns or mounting points.
Buying Guide: How to Choose Running Board Bolts And Hardware
What should you consider when selecting bolts for running boards?
- Compatibility: Confirm thread size (M8, M6, 1/4 inch), bolt length, and U-nut size with your vehicle’s mounting brackets and sidesteps.
- Material and finish: Look for stainless steel or coated hardware to resist rust in road salt and wet climates.
- Strength rating: For vertical mounts, choose higher strength classes to prevent bolt shear during off-road use.
- Universal vs. vehicle-specific: Universal kits save time but may require trimming or adapters; vehicle-specific sets reduce guesswork but may be pricier.
- Installation completeness: A good kit includes bolts, washers, and nuts or U-nuts, ensuring a complete mounting solution.
Frequently Asked Questions
- What bolt size should I use for running boards?
– It depends on your vehicle and sidestep model. Common sizes include M8 and M6 bolts, often with 1.25 or 1.0 thread pitch. Verify with your mounting hardware or manufacturer specs. - Are U-nuts necessary for running boards?
– U-nuts provide a secure threaded point in non-threaded panels and are widely used for mounting side steps. They improve clamping and reduce loosening from vibration. - Can I use universal bolts for all vehicles?
– Universal sets are versatile but may not fit every model perfectly. Always cross-check bolt length, head size, and thread pitch with your exact mounting points. - Should I coat bolts before installation?
– If the hardware isn’t already coated, applying a corrosion-resistant finish helps extend life in harsh conditions. Avoid coatings that could interfere with thread engagement. - What’s the best way to verify compatibility?
– Compare OEM part numbers, count of bolts, and clip types, and measure stud spacing. If in doubt, consult the sidestep manufacturer’s installation guide.