Spectre Torque Converter Bolt Grade 8 Black Alloy

Description

Product Overview

The Spectre Torque Converter Bolt & Lock Nut Set is engineered for demanding transmission applications. Each bolt is forged from high‑strength alloy steel and heat‑treated to Grade 8 specifications, delivering exceptional tensile strength and durability. A black oxide coating provides excellent corrosion resistance, extending service life in harsh environments. The set includes 3/8‑24 x 5/8 inch socket head bolts and matching lock nuts, perfectly sized for General Motors TH350, Powerglide and most TH400 units.

Usage

Designed for professional mechanics and serious DIY enthusiasts, this bolt set is ideal for transmission rebuilds, performance upgrades, and routine maintenance. Whether you are restoring a classic muscle car or tuning a modern performance vehicle, the Spectre bolts ensure a secure, torque‑controlled connection that maximizes power transfer.

Why Choose Us

Spectre’s reputation for precision engineering backs every component in this set. The Grade 8 alloy steel offers a proven balance of strength and ductility, while the black oxide finish guards against rust and wear. Each bolt is manufactured to tight tolerances, guaranteeing a perfect fit that eliminates the need for additional machining. Backed by a robust warranty and positive customer reviews, Spectre delivers confidence and reliability where it matters most.

Key Features

• Grade 8 alloy steel construction for maximum strength
• Black oxide coating provides superior corrosion resistance
• Exact 3/8‑24 x 5/8 inch dimensions fit TH350, Powerglide and TH400
• Includes matching lock nuts for a secure, vibration‑resistant joint
• Designed for both professional and DIY transmission work

FAQ

What transmissions are compatible with this bolt set?

The set is specifically sized for General Motors TH350, Powerglide and most TH400 transmissions, covering a wide range of classic and performance applications.

Is the black oxide coating durable?

Yes, the black oxide finish is applied to protect the alloy steel from rust and corrosion, even in high‑temperature or moisture‑prone environments.

Do I need any special tools to install these bolts?

A standard 3/8‑24 socket or wrench is sufficient. The socket head design provides easy access and a secure grip during installation.

Can I use these bolts for other vehicle makes?

While they are optimized for GM transmissions, the dimensions may be compatible with other brands that use the same bolt pattern. Verify fitment before installation.

What warranty does Spectre offer?

Spectre provides a limited warranty covering material defects, ensuring you receive a reliable product backed by the manufacturer.