Name: 360pcs 304 Stainless Steel Flat Washer Set (M2-M10)
Brand: Sun Cheong Computer Company Limited
SKU: 21PS001630
Price: 35.0 HKD
Availability: InStock

Short Product Description

Stop worrying about loose screws or surface damage. This 360-piece 304 Stainless Steel Flat Washer Set is a must-have for every toolbox. Featuring 8 essential metric sizes from M2 to M10, these washers provide a smooth bearing surface to distribute fastener load and prevent loosening. Whether you are working on a PC build, home appliance repair, or automotive DIY, this rustproof assortment ensures professional-grade durability and a clean finish every time.

Key Features

304 Grade Stainless Steel: Superior rust and corrosion resistance for long-term reliability.
8 Metric Sizes (M2–M10): Covers 95% of common household and industrial fastening needs.
Precision Smooth Finish: Burr-free surface prevents scratching on delicate components.
High Load Distribution: Effectively prevents bolts and screws from pulling through or loosening.
Portable Organizer Box: Keeps your workspace tidy and makes inventory management easy.

Full Product Description

The Professional Solution for Secure Fastening

In mechanical assembly and home repairs, the smallest component often makes the biggest difference. Our flat washer assortment kit is designed to solve the common problem of pressure concentration and vibration-induced loosening. By increasing the contact surface area, these washers protect your projects from wear and tear.

Premium 304 Stainless Steel Construction

Unlike cheap zinc-plated alternatives, our washers are forged from high-quality 304 stainless steel. This makes them exceptionally resistant to corrosion and rust, allowing for both indoor and outdoor applications. From humid kitchens to outdoor engine bays, these washers maintain their structural integrity and polished look.

Organized, Labeled, and Ready to Use

Time is money in any workshop. We've eliminated the frustration of digging through messy bins. This set comes in a sturdy, transparent organizer box with individual compartments for each size. The lid features a clear size chart, so you can grab exactly what you need (from M2 up to M10) in seconds.

Versatility Across Industries

While primarily designed for mechanical equipment and electronics, these washers are precise enough for STEM projects and even creative DIY crafts. It’s the ultimate backup set for technicians, hobbyists, and maintenance professionals.

Technical Specifications

M2: Inner Ø 2.2 mm, Outer Ø 5.0 mm, Thickness 0.5 mm — 50 pcs
M2.5: Inner Ø 2.5 mm, Outer Ø 6.0 mm, Thickness 0.5 mm — 50 pcs
M3: Inner Ø 3.2 mm, Outer Ø 7.0 mm, Thickness 0.6 mm — 50 pcs
M4: Inner Ø 4.5 mm, Outer Ø 9.0 mm, Thickness 0.8 mm — 50 pcs
M5: Inner Ø 5.5 mm, Outer Ø 10.0 mm, Thickness 0.8 mm — 50 pcs
M6: Inner Ø 6.2 mm, Outer Ø 12.0 mm, Thickness 1.0 mm — 50 pcs
M8: Inner Ø 8.2 mm, Outer Ø 16.0 mm, Thickness 1.0 mm — 40 pcs
M10: Inner Ø 10.8 mm, Outer Ø 20.0 mm, Thickness 1.2 mm — 20 pcs

Delivery Options

Local delivery within Hong Kong and in-store pickup.
Free shipping for orders of HK$400 or above; HK$35 shipping fee for orders below HK$400.
Shipped by SF Express, usually dispatched the same day for orders confirmed before 6:00 PM (Mon–Sat).
Estimated delivery time: 1–3 business days after dispatch (Hong Kong).
In-store pickup details (location and time) will be confirmed by email or phone message.
Delivery times are estimates and may be affected by weather or unforeseen circumstances.

FAQ Section

Q: Are these washers magnetic?

A: 304 stainless steel is generally non-magnetic or only weakly magnetic due to the cold-working process during manufacturing.

Q: Can I use these for outdoor marine applications?

A: Yes, 304 stainless steel offers excellent rust resistance. However, for direct saltwater submersion, 316 grade is typically recommended, though 304 is perfect for general outdoor use.

Q: Will the box stay closed in my toolbag?

A: Yes, the kit features a secure snap-lock lid to prevent the sizes from mixing during transport.