




🔩 Lock in power with USA-made strength – don’t settle for less!
ICT Billet USA 12.9 LS Transmission Flywheel Bolts Set offers premium-grade M11 flange bolts with 12.9 hardness, BP corrosion coating, and precise OEM length. Designed specifically for GM LS series engines, these bolts provide superior strength and durability, ensuring a secure, washer-free installation. Manufactured in the USA, this 6-piece kit is engineered to withstand high torque demands and resist thread seizing for long-lasting performance.









| Thread Size | M11 |
| Exterior Finish | Natural |
| Manufacturer Grade | Grade 12.9 |
| Head Style | Flange |
| Colour | Natural |
| Fastener Type | Flange Bolt |
| Brand | ICT Billet |
| Thread Type | M11-1.5 |
| Item Diameter | 11 Millimetres |
| Thread Style | Right Hand |
| Item Hardness | Grade 12.9 |
| Metal Type | Alloy Steel, Aluminium |
| Head Type | Flange |
| Thread Class | 3A |
| Maximum Shear Strength | 7.74 ksi |
| Number of Pieces | 6 |
| UPC | 657814753495 |
| Manufacturer | ICT Billet |
| Item part number | 551926 |
| Manufacturer Part Number | 551926 |
| OEM Part Number | 551926 |
| Country of Origin | USA |
| Item Weight | 159 g |
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