Gm Flex Plate Bolts

The MR. GASKET GM Flex Plate Bolts (Part #6716) are a precision torque converter fastening kit engineered for high-performance automatic transmission builds. This three-piece set features 3/8-24 thread specification with 0.625-inch length, black oxide-finished steel construction, and hex head design optimized for secure, repeatable fastening on TH350 and Powerglide transmissions. These bolts serve as critical connection points between the flex plate and torque converter, where vibration isolation and load distribution directly impact transmission longevity and driveline stability.

The black oxide finish provides corrosion resistance superior to bare steel, essential for engine bay environments where heat cycling and moisture exposure accelerate oxidation. The 3/8-24 thread pitch is the factory standard for flex plate fastening on these transmission generations, ensuring proper preload characteristics and preventing thread stripping under load. The hex head design allows socket engagement without cam-out risk, critical when accessing bolts in tight transmission bellhousing clearances. MR. GASKET's manufacturing tolerances ensure consistent fit across multiple fastening cycles, reducing the risk of loose fasteners developing micro-movements that lead to vibration and eventual fatigue failure.

This kit is designed for street and performance builds where OEM fasteners have been removed for transmission service, internal work, or replacement component installation. Technicians rebuilding automatic gearboxes, fabricators performing custom transmission mounts, and performance shops installing upgraded torque converters depend on precision hardware that maintains factory engagement geometry. The set of three accommodates the typical fastening pattern for these transmission housings, though confirmation of bolt count for your specific application is recommended before installation.

For TH350 and Powerglide builds, fastener specification compliance prevents mismatches that can lead to stripped bores or insufficient clamping force. Proper torque procedure using calibrated wrenches is essential—under-torqueing risks converter slippage; over-torqueing can fracture the flex plate ears. This product represents the OEM-equivalent fastening solution for transmission work where quality hardware directly affects drivetrain reliability and safety under load.