




🔧 Upgrade your LS engine with bolts that mean business!
ICT Billet USA 12.9 LS Transmission Flywheel Bolts Set offers six high-strength, grade 12.9 flange bolts custom-made in the USA. Designed for GM LS1, LS2, LS3, LS6, and LS7 engines with 6-bolt crankshafts, these M11-1.5 threaded bolts feature a corrosion-resistant BP coating and a washer-free flange head for easy, secure installation.









| 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 |
| Size | M11-1.5 |
| 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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