PRW Power Flange Nuts are engineered to deliver superior clamping strength, reliability, and ease of installation for high-performance engine builds. Manufactured from premium alloy steel and heat-treated for maximum durability, these flange nuts provide the secure retention needed to handle extreme vibration, high cylinder pressures, and demanding RPM levels. Each nut features a wide integrated flange designed to evenly distribute load across the mating surface, improving gasket sealing and reducing the risk of fastener loosening. Precision-rolled threads ensure smooth engagement, greater fatigue resistance, and more accurate torque readings. A protective black oxide finish adds corrosion resistance for long-lasting performance in any environment. Whether used on cylinder heads, valvetrain components, rotating assemblies, or general high-stress fastening points, PRW Power Flange Nuts deliver the strength, stability, and consistency serious builders rely on.
- Premium alloy steel construction
- Precision heat-treated for superior strength
- Wide integrated flange for improved load distribution
- Rolled threads for enhanced fatigue resistance
- Black oxide finish for corrosion protection
Weight: 0.184 lb
PRW - FLANGE NUT, 5/16"-24 3/8" Wrenching, 12pt, Each - 1068306
Specifications
Manufacturer data for this part — all visible, no tabs to dig through.
| Brand | PRW |
| Part number | PRW1068306 |
| Category | Engine & Driveline |

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Useful in any truck — ships separately in its own box.
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