At a Glance
- >Center bolt for heavy trailer equalizer suspension
- >Fits many 9K and 10K GD trailer suspension systems
- >1"-8 thread heavy-duty suspension bolt
- >Grade 5 hex cap screw
- >Includes matching lock nut
- Brand: R & P Carriages
- SKU: 7-182 + 6-112
Match the part number, measurements and connection points that apply to your trailer.
| Hub Face | Measure hub face to hub face. |
|---|---|
| Spring Center | Measure mounting centers and confirm perch configuration. |
| Capacity | Match the required axle rating. |
| Brakes | Confirm brake type and flange configuration. |
Center bolt and lock nut kit used on many heavy-duty trailer equalizers for 9,000 lb and 10,000 lb GD suspension systems. This bolt passes through the equalizer pivot and secures the equalizer to the center hanger bracket.
Includes the correct 1"-8 equalizer bolt and matching lock nut used on many large trailer suspension systems. Standard dry bolt configuration.
The equalizer center bolt is the pivot point connecting the equalizer to the center hanger in tandem or triple axle trailer suspensions. The equalizer moves up and down to balance load between axles when traveling over uneven surfaces.
Large trailer suspensions commonly use fine-thread Grade 5 or Grade 8 bolts for improved strength and clamping force. This bolt is a standard dry bolt without a grease passage.
Always verify bolt diameter, thread pitch, and length when replacing suspension hardware.
| Specification | Detail |
| Bolt Diameter | 1" |
| Thread Pitch | 8 TPI |
| Bolt Length | 5" |
| Thread Length | 2-1/2" |
| Bolt Grade | Grade 5 |
| Application | Trailer Equalizer Pivot Bolt |
| Suspension Rating | 9K / 10K GD Trailer Suspension |
| Included Components | 1 Bolt (007-182-00), 1 Lock Nut (006-112-00) |
Verify specifications before installation.

Selected from R&P customer feedback for Trailer Axle / Running Gear products and related trailer service.
“Got me the axle I needed right away with custom spring perch setting.”
“Had a trailer made to my needs.ken was able to get it done and at a price that was very acceptable.i have bought parts there for 2 other trailers and always in stock”
“Quality work. Staff is polite. Great job welding a project for me. Didn't even want to charge me, so I bought them a case of Corona. They were ecstatic. I ever need a welding or like that R&P Carriages is #1 !!!!!”
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