






🔧 Keep your trailer rolling smooth — greaseable bolts that work as hard as you do!
The RJSPHH Trailer Axle Spring Shackle Greaseable Spring Bolt set features 14 high-grade stainless steel bolts with a 0.5625" diameter and 7/16"-20 thread, designed for trailer axles ranging from 2000# to 7000#. Its knurled shoulder prevents spinning during installation, while the integrated grease zerk allows easy lubrication to maximize suspension durability. Engineered for professional-grade performance and backed by a 1-year warranty, this set is essential for maintaining smooth, reliable trailer operation.

| Material | Alloy Steel |
| Thread Size | M12x1.75 |
| Exterior Finish | Stainless Steel |
| Manufacturer Grade | Grade 2 |
| Head Style | Hex |
| Colour | black |
| Fastener Type | Hanger Bolt |
| Brand | RJSPHH |
| Thread Type | UNC |
| Item Diameter | 0.56 Inches |
| Thread Style | Right Hand |
| Item Hardness | Grade 5 |
| Size | 14pcs |
| Metal Type | Stainless Steel |
| Head Type | Socket |
| Thread Class | UNC |
| Number of Pieces | 14 |
| UPC | 752692079191 |
| Manufacturer | RJSPHH |
| Item model number | LSZY |
| Manufacturer Part Number | LSZY |
| Item Weight | 1 kg 670 g |
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