Whether you’re building a new bike project, performing routine maintenance, or replacing worn hardware, a reliable selection of bike screws and bolts is essential. This guide highlights five high-quality metric screw sets designed for durability, corrosion resistance, and versatile use across common cycling components. Each kit covers multiple sizes, includes washers and nuts, and arrives in organized storage for quick access.
style=”display:none;”>Summary of chosen products:
| Product | Brand | Key Specs | Links |
|---|---|---|---|
| 860PCS Metric Screw Assortment Kit | LuKaiSen Store | M2, M3, M4, M5; 12.9 grade alloy steel; includes nuts, washers, lock washers; 8/10/16/20 mm lengths | Includes 1 convenient storage box |
| Kadrick Metric Screw Assortment, 2000PCS | Kadrick Store | M2/M3/M4/M5; 10.9 grade alloy steel; lock & flat washers; standard ISO/DIN | Sturdy plastic storage box included |
| mxuteuk Metric Screw Assortment Kit | mxuteuk Store | 10.9 & 12.9 grade; M2–M5; 2285 pieces; hex socket button & cap head; includes 5 hex wrenches | Large kit with mixed head types |
| Taiss 380PCS M4 Screw Kit | Taiss Store | M4 screws; hex socket head; 12.9 grade alloy steel; black zinc plated | Includes nuts, washers, and hex wrench |
| 225pcs Screws And Nuts Assortment Kit | Fgruh Store | M4–M6; Phillips pan head; 4.8 grade galvanized; includes nuts and washers | Great for indoor/outdoor fixes |
LuKaiSen 860Pcs Metric Screw Assortment

- Designed with 12.9 grade alloy steel for high hardness and corrosion resistance in harsh environments.
- Includes M2, M3, M4, and M5 sizes with four lengths each, plus matching nuts, washers, and lock washers.
- Durable storage box keeps sizes organized 1:1 in separate compartments to prevent mix-ups.
Kadrick Metric Screw Assortment, 2000Pcs

- Includes M2, M3, M4, M5 screws with 10.9 alloy steel for strength and precise threads.
- Specifies standard ISO/DIN measurements with consistent tolerances for reliable fit.
- Sturdy plastic storage box keeps all sizes organized and easy to access.
mxuteuk Metric Screw Assortment Kit

- Offers both 10.9 and 12.9 grade alloy steel with M2–M5 sizes, including screws, nuts, washers, and five hex wrenches.
- Large 2285-piece kit with various hex socket head and button head screws.
- Precision manufacturing with tight tolerances suitable for long-term project use.
Taiss 380PCS M4 Screw Kit

- Hex Socket Head Screws in M4 size with 12.9 grade alloy steel, black zinc plating for corrosion resistance.
- Includes nuts, washers, and a hex wrench for immediate use.
- Six sizes from M4 x 6 to M4 x 30 mm provide flexible mounting options for many bike components.
225pcs Screws And Nuts Assortment Kit

- Includes M4–M6 screws with various lengths, 75 bolts, 75 nuts, and 75 washers for broad compatibility.
- Black galvanized alloy steel offers good hardness and rust resistance suitable for indoor use and light outdoor applications.
- Versatile for mounting fixtures, electrical outlets, switches, and small hardware repairs around the home or shop.
Buying Guide
Material and Grade
Look for high-strength alloy steel options, typically 10.9 or 12.9 grades, for better wear resistance and longevity on bike components that endure vibration and exposure to moisture.
Size Range And Compatibility
Choose kits that cover common metric sizes (M2–M5) with a selection of lengths (6–30 mm). This ensures you can replace bolts across derailleurs, racks, fenders, and frame hardware without hunting for single size parts.
Head Type And Accessory Inclusion
Hex socket head and button head screws are versatile for bikes. Kits that include nuts, washers, lock washers, and a few hex wrenches provide a complete, ready-to-use solution for most repairs.
Storage And Organization
A sturdy storage box with clearly labeled compartments reduces misplacement and speeds up maintenance tasks. 1:1 sizing in compartments helps ensure you grab the correct part quickly.
Corrosion Resistance
Corrosion resistance is crucial for exterior bike components or those exposed to humidity. Zinc plating and galvanized finishes offer protection against rust in typical riding environments.
Quantity And Value
For ongoing projects or frequent maintenance, larger assortments (thousands of pieces) can be more economical per piece and reduce the need for frequent reordering.