The Master Lock K1BOX Key Blank is an exact replacement blank for Master Lock pin tumbler padlocks, sold in a convenient box of 50. These nickel-plated blanks are the best choice for Universal Pin applications and are compatible with a wide range of Master Lock models. Stock up for a locksmith shop, hardware store, or facility managing many keyed locks.

• Exact replacement key blanks for Master Lock pin tumbler padlocks
• Fits locks 1-6, 11, 33-37, 39-40, 300 Series, 430, 443, 475, 1317, 1803, and 1805
• Best choice for Universal Pin lock applications
• Nickel-plated finish for corrosion resistance and smooth key cutting
• Box of 50 blanks for high-volume or professional use