




🔩 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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