448 Piece M5 M6 M8 Hex Socket Head Cap Bolts Kit With Black Oxide Finish High Strength 12 9 Grade Alloy Steel Screw Set Includes Lengths From 16 To 40 mm For Rugged Projects And All Weather Grind Sets Featuring Superior Rust Protection

High Strength M5 M6 M8 Hex Socket Bolt Assortment Kit
✔️ 448 piece metric screw kit with M5 M6 M8 alloys and flat locks

This complete fastener set includes 448 pieces and keeps your garage sorted for weekend repairs. You will find these heavy duty hex cap screws ideal for bicycle tuneups, cabinet assembly, and industrial equipment maintenance.

✅ M5 M6 and M8 threads come in 16mm 20mm 30mm and 40mm lengths
✅ 12.9 high strength steel resists corrosion during harsh weather use
✅ Each pack pairs every screw with a nut and washer for secure mounting
✅ Clear labeled storage box makes finding the right size fast on site

💡 How do technicians secure high stress engine mounts during routine service?
Picking a handy metric bolt set saves valuable shop hours and prevents costly breakdowns.
- Grade twelve point nine alloy steel withstands extreme thermal cycling without fatiguing.
- Black oxide treatment shields mating surfaces from rust and chemical exposure.
- Pre matched washers distribute load evenly across fragile aluminum housing plates.

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