Undersized Key Stock In A4 Stainless Steel, Plain Finish, 12 Inch Length, 4 Mm Width, 4 Mm Thick, Metric And Inch Compatible For Precise Keying, Industrial Grade Hardware For Pros And DIYers WWG700404305-A

High-quality A4 Stainless Steel Undersized Key Stock for Metric-Inch Use
✔️ A4 stainless steel construction, 12 inches (305 mm) long, 4 mm wide and thick, with inch-metric compatibility for precise industrial applications.

This undersized key stock is a straight metal bar designed for transmitting torque in mechanical systems, commonly used in industrial machinery, automotive repairs, and DIY projects for accurate shaft and gear assemblies.

✅ Length: 12 inches (305 mm)
✅ Width: 4 mm
✅ Thickness: 4 mm
✅ Material: A4 stainless steel
✅ Finish: Plain
✅ Key shape: Straight
✅ Rockwell hardness: HRB 82
✅ Tensile strength: 35,000 psi

💡 Why choose undersized key stock for tight-fit mechanical setups?
This option works great for projects needing exact fits, offering reliable performance in high-stress environments. Here's how it stands out:
- Delivers precise tolerances to avoid slippage in rotating parts
- Resists corrosion better than standard steel for longer-lasting use
- Fits easily into both metric and inch systems for broader project compatibility
- Boosts overall machinery efficiency with its straight design and strength

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