---
product_id: 107206098
title: "Torque Converter/FlexPlate Bolt #3987930 (3/8\"-16x.570\") fits TH350 TH400 TH-350/400 (Screw)"
brand: "tri component"
price: "€ 28.94"
currency: EUR
in_stock: true
url: https://www.desertcart.hr/products/107206098-torque-converter-flexplate-bolt-3987930-3-8-16x-570-fits
store_origin: HR
region: Croatia
---

# Racing Approved 3/8"-16 Size Heat-Treated Steel Torque Converter/FlexPlate Bolt #3987930 (3/8"-16x.570") fits TH350 TH400 TH-350/400 (Screw)

**Brand:** tri component
**Price:** € 28.94
**Availability:** ✅ In Stock

## Summary

> 🔧 Bolt Your Performance to the Next Level!

## Quick Answers

- **What is this?** Torque Converter/FlexPlate Bolt #3987930 (3/8"-16x.570") fits TH350 TH400 TH-350/400 (Screw) by tri component
- **How much does it cost?** € 28.94 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.hr](https://www.desertcart.hr/products/107206098-torque-converter-flexplate-bolt-3987930-3-8-16x-570-fits)

## Best For

- tri component enthusiasts

## Why This Product

- Trusted tri component brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Precision Fit:** Designed to seamlessly fit TH350 and TH400 transmissions.
- • **USA-Made Quality:** Crafted from premium heat-treated alloy steel for durability.
- • **Competition Ready:** Trusted by racers for reliability in the toughest conditions.
- • **Unmatched Strength:** Engineered for high-performance and heavy-duty applications.
- • **Versatile Compatibility:** Perfect for a range of GM vehicles including Corvette, Camaro, and Nova.

## Overview

The Torque Converter/FlexPlate Bolt #3987930 is a high-performance fastening solution designed for TH350 and TH400 transmissions. Made in the USA from heavy-duty, heat-treated alloy steel, these bolts are engineered for strength and reliability, making them ideal for racing and heavy-duty applications. With a precise 3/8"-16 size and a length of 0.570", they ensure a perfect fit for various GM vehicles, including the iconic Corvette and Camaro.

## Description

Torque Converter/FlexPlate Bolt #3987930 (3/8"-16x.570") fits TH350 TH400 TH-350/400 (Screw)

## Features

- Industry Part ID: 3987930, B-64, B64, 35996
- Dimensions: 3/8"-16 Length: 0.570". Perfect for High-Performance, racing, Heavy-Duty and Regular-Duty applications
- These bolt kits are the strongest bolts you can get to attach your torque converter and are used in competitions. The bolts are fully heat treated prior to thread rolling and machining.
- Made in the USA from heavy-duty, heat-treated alloy steel
- Fits the following Turbo Hydramatic (THM) Transmission Torque Converter Applications: General Motors TH350 Buick, Oldsmobile, Pontiac (Includes TH300) General Motors TH400 3L80, Allison AT540, 310mm Allison AT540, 310mm, TH400 3L80 1973-82 Corvette, Camaro & Nova Chevelle

## Images

![Torque Converter/FlexPlate Bolt #3987930 (3/8"-16x.570") fits TH350 TH400 TH-350/400 (Screw) - Image 1](https://m.media-amazon.com/images/I/31b13EYqBDL.jpg)
![Torque Converter/FlexPlate Bolt #3987930 (3/8"-16x.570") fits TH350 TH400 TH-350/400 (Screw) - Image 2](https://m.media-amazon.com/images/I/31n4oLMbwQL.jpg)

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**Shop now:** [https://www.desertcart.hr/products/107206098-torque-converter-flexplate-bolt-3987930-3-8-16x-570-fits](https://www.desertcart.hr/products/107206098-torque-converter-flexplate-bolt-3987930-3-8-16x-570-fits)

---

*Product available on Desertcart Croatia*
*Store origin: HR*
*Last updated: 2026-02-25*