✓ In stock Class 8 zinc-plated steel metric hex nut to DIN 934 standard for M12-1.75 thread applications. M12 is commonly used on larger structural automotive fastening points — subframe bolts, strut mounts, axle hardware, and heavy body structural attachments. Class 8 construction with 116,000 psi tensile strength provides the clamping force required for these high-load applications. Specifications Type: Metric Hex Nut Thread Size: M12-1.75 Thread Type: Regular (Coarse) Across Flats: 19mm Class: 8 Standard: DIN 934 Material: Steel Finish: Zinc Tensile Strength: 116,000 psi Vehicle Fitment Universal — M12-1.75 thread applications across domestic and import vehicles Cross-Reference Numbers Standard: DIN 934, M12-1.75 SMS Part#: 10576 What does Class 8 mean for a metric hex nut? Class 8 indicates the mechanical strength grade. Class 8 nuts provide a proof load stress of 800 MPa and are designed to mate with Class 8.8 bolts. For large-diameter M12 fasteners in structural applications, Class 8 is the correct strength grade to maintain joint integrity under load. What is the standard thread pitch for M12? M12-1.75 is the standard (coarse) thread pitch for M12 fasteners — 1.75mm between thread peaks. Fine thread variants (M12-1.25, M12-1.5) exist but are not interchangeable with coarse-thread bolts. Always verify the thread pitch of your existing bolt before ordering. What wrench size does an M12 nut require? An M12 DIN 934 nut has a 19mm across-flats dimension, requiring a 19mm wrench or socket. Some vehicles use an 18mm across-flats M12 nut depending on the standard — verify your existing nut before ordering. Where is M12 commonly used in automotive applications? M12 fasteners are used on subframe mounting bolts, strut tower hardware, differential mounts, exhaust flange studs, and heavy body structural fastening. They are also common on trailer hitches and towing hardware. What pack sizes are available? Available in packs of 10, 20, 40, and 60 to suit individual repairs or shop stock needs.
