--- product_id: 120757487 title: "Torque Converter Bolts, Heavy-Duty. M10-1.50 x 15mm, fits GM TH-350/700/400/200, 4L60, 4L60E,4L80E, 3L80 B78" brand: "tri component" price: "218.57 DT" currency: TND in_stock: true reviews_count: 6 category: "Tri Component" url: https://www.desertcart.tn/products/120757487-torque-converter-bolts-heavy-duty-m10-1-50-x-15mm store_origin: TN region: Tunisia --- # Grade 9.8 Heavy-Duty Alloy Steel Fits GM TH-350/700/400 & more Made in USA, Heat-Treated Strength Torque Converter Bolts, Heavy-Duty. M10-1.50 x 15mm, fits GM TH-350/700/400/200, 4L60, 4L60E,4L80E, 3L80 B78 **Brand:** tri component **Price:** 218.57 DT **Availability:** ✅ In Stock ## Summary > 🔧 Lock in Power with Bolts Built to Win! ## Quick Answers - **What is this?** Torque Converter Bolts, Heavy-Duty. M10-1.50 x 15mm, fits GM TH-350/700/400/200, 4L60, 4L60E,4L80E, 3L80 B78 by tri component - **How much does it cost?** 218.57 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/120757487-torque-converter-bolts-heavy-duty-m10-1-50-x-15mm) ## 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 - • **Made in the USA:** Crafted with pride from heat-treated alloy steel, guaranteeing premium quality and longevity. - • **Unmatched Strength:** Grade 9.8 hardened alloy steel bolts built for high-performance and competition-level durability. - • **OEM Direct Replacement:** Exact OEM specs ensure seamless installation and reliable performance without compromise. - • **Race-Ready Reliability:** Trusted by pros for heavy-duty and racing applications, these bolts withstand extreme torque and stress. - • **Precision Fit for GM Transmissions:** Specifically engineered to fit a wide range of GM torque converters including TH-350, 700-R4, 4L60E, and more. ## Overview These Torque Converter Bolts (M10-1.50 x 15mm) are heavy-duty, Grade 9.8 alloy steel fasteners designed as direct OEM replacements for GM transmissions including TH-350, 700-R4, 4L60E, and 4L80E. Made in the USA and heat-treated for maximum strength, this set of three hex-head bolts delivers race-proven durability and precision fitment for high-performance and heavy-duty applications. ## Description Torque Converter/Flex Plate Bolts (Screws) Direct OEM replacement. Perfect for High-Performance, Racing, Heavy-Duty and Regular-Duty Torque Converters. Review: Fit perfectly - Great price quality was good fit perfectly functional great highly recommend Review: Exact part needed - Exact part purchased for a fraction of what other companies were charging. ## Features - Industry Part ID: B78, B-78, 4040, M464GE, 65998, 01261968 - Includes 3 hex-head bolts. These bolt are the strongest bolts you can get to attach your torque converter and are used in competitions. - Metric Dimensions: M10-1.50 x 15 mm. Grade: 9.8 (Heavy Duty) Made in the USA from, Heat-Treated, hardened alloy steel - Fits the following Transmission Torque Converter Applications: Buick, Cadillac, Chevy, GMC, Pontiac, Oldsmobile, Hummer, BMW, Acura, Isuzu General Motors 298mm Lockup, 250C, 350C, 700-R4, 4L60E 300mm Lockup, 4L60E 310mm Lockup, 4L80E Single Stator And Dual Stator 310mm Lockup, 4L80E Late (Single Stator) TH350 (Includes TH300) TH400 3L80, Allison AT540, 310mm 245mm Lockup, - Fits: Models: 125C, 180C, 200C, 440-R4, 700-R4 (S-10 Only) Allison AT540, 310mm, TH400 3L80 TH350/TH350C (TH-350 TH-350C) 1969-86 TH700-R4 (TH-700R4)1982-93 TH400 TH375 TH475 RWD (TH 400 ). 1964-98 TH180 TH180C (TH-180 TH-180C)1969-Up TH200-TH200C TH-200-TH-200C 1976-87 TH200-4R (TH-2004R)1981-90 TH250C (TH-250C) 4L80E 1991-Up 4L60E 1993-Up 4L65E 2001-Up 4L30E 1990-Up 5L40E 1999-Up. Flexplate / Flywheel ## Technical Specifications | Specification | Value | |---------------|-------| | ASIN | B07HKR3ZPG | | Best Sellers Rank | #1,729,842 in Automotive ( See Top 100 in Automotive ) #3,169 in Automotive Replacement Transmission Hard Parts | | Brand | Tri Component | | Color | Red | | Compatible Groove Diameter | 10.1 Millimeters | | Customer Reviews | 4.7 out of 5 stars 41 Reviews | | Drive System | Universal | | Exterior Finish | Zinc | | Fastener Size | M10-1.50 | | Fastener Type | Hexagon Bolt | | Finish Types | Zinc Plated | | Grade Rating | Grade 9 8 | | Head Style | Hex | | Item Diameter | 15 Millimeters | | Item Hardness | Rockwell C40 | | Item Weight | 0.05 Pounds | | Manufacturer | Tri Component | | Manufacturer Grade | Grade 9 8 | | Material | Alloy Steel | | Material Type | Alloy Steel | | Maximum Shear Strength | [HIGH] | | Metal Type | Alloy Steel | | Number Of Items | 3 | | Number of Pieces | 3 | | Part Number | B-78K-3-AMZ | | Screw Head Style | Hex | | Set Name | Set of 3 | | Set Screw Thread Type | Metric Coarse | | Size Name | M10-1.50 | | Thread Class | 3A | | Thread Coverage | Fully Threaded | | Thread Size | M10 | | Thread Style | Right Hand | | Thread Type | Metric Coarse (M) | | Unit Count | 1.0 Count | ## Images ![Torque Converter Bolts, Heavy-Duty. M10-1.50 x 15mm, fits GM TH-350/700/400/200, 4L60, 4L60E,4L80E, 3L80 B78 - Image 1](https://m.media-amazon.com/images/I/81o-hWFae0L.jpg) ![Torque Converter Bolts, Heavy-Duty. M10-1.50 x 15mm, fits GM TH-350/700/400/200, 4L60, 4L60E,4L80E, 3L80 B78 - Image 2](https://m.media-amazon.com/images/I/41ljzR-dpWL.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Fit perfectly *by A***R on February 9, 2025* Great price quality was good fit perfectly functional great highly recommend ### ⭐⭐⭐⭐⭐ Exact part needed *by F***. on October 19, 2024* Exact part purchased for a fraction of what other companies were charging. ### ⭐⭐⭐⭐⭐ Exactly as advertised and excellent quality *by B***L on October 8, 2023* Excellent quality!! --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/120757487-torque-converter-bolts-heavy-duty-m10-1-50-x-15mm](https://www.desertcart.tn/products/120757487-torque-converter-bolts-heavy-duty-m10-1-50-x-15mm) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-11-11*