Proflow Nut, Flange Nut, 1/2"-20 x 9/16" Wrenching, 12pt, 10 Piece

Proflow 12pt 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

• 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