400 Piece Steel Fender Flat Washers For Three Eighths Inch Hardware Zinc Plated Carbon Steel Durable Flat Washers With Smooth Faces For Secure Seals Ideal For Home Repairs DIY Projects And Indoor Sheltered Use

Zinc-Plated Flat Washers for 3/8 Hardware, 400-Piece Pack
✔️ 400 pcs: ID 0.39, OD 0.82, 1.2 mm thick suitable for 3/8 hardware

These flat washers are designed for 3/8 in hardware, offering a smooth seating surface with a broad bearing area. They are zinc-plated carbon steel, providing corrosion resistance for indoor repairs and sheltered DIY projects. The inner diameter is 0.39 in (10 mm), outer diameter 0.82 in (21 mm), and thickness 1.2 mm (0.047 in).

✅ 400-piece pack of flat washers in zinc-plated carbon steel, 1.2 mm thick
✅ Inner diameter 0.39 in (10 mm); outer diameter 0.82 in (21 mm)
✅ Smooth, flat faces ensure clean seating under bolts and nuts
✅ Wide bearing surface helps distribute clamping load across wood, metal, or brackets
✅ Ideal for furniture frames, automotive brackets, shelving, and DIY projects in indoor spaces

💡 What is a flat washer used for in DIY projects and why choose zinc-plated carbon steel?

Here's a handy explanation with quick, practical points for common uses and benefits.

- load distribution under bolts and nuts to protect surfaces from damage - zinc plating provides corrosion resistance for indoor use - compatibility with 3/8 in hardware and M10 bolts for everyday setups ✝️