340 Piece Internal Tooth Star Lock Washers Set M3 To M12 Includes 7 Sizes, 65Mn Steel With Black Oxide Finish, Push On Locking Washers, Assortment Kit For Auto, Machinery, And DIY Projects, Great For Pros And DIYers

340-Piece M3 to M12 Internal Tooth Star Washers Set
✔️ 7 sizes in 65Mn steel with black oxide finish, 340 pieces

This 340-piece set bundles seven sizes of internal tooth star lock washers (M3, M4, M5, M6, M8, M10, M12) to fit a wide range of fasteners from small electronics to larger machinery. It’s a handy kit for auto, marine, and DIY projects where secure locking is essential and quick size access matters.

✅ M3 (9mm) to M12 (25mm) diameter range across seven sizes
✅ Material: 65Mn steel with black oxide finish for durability
✅ Thickness: 0.4mm for M3-M6; 0.5mm for M8-M12
✅ Height: M3 1.4mm; M4 1.5mm; M5 1.5mm; M6 2.1mm; M8 2.3mm; M10 2.3mm
✅ 340 pieces organized in transparent boxes for easy access

💡 What is an internal tooth star lock washer set used for in mechanical assemblies and why choose this M3 to M12 kit?

Here's a handy explanation for typical uses and benefits.

- helps prevent loosening under vibration by increasing friction and load transfer - suitable for automotive, machinery, and DIY projects across M3-M12 bolts - 65Mn steel with black oxide finish offers good wear resistance and durability - organized in clear boxes so you can grab the right size fast