TWENTY ONE Different Sizes of Brass Butterfly Clock KEY, 000 to 18

Choose the perfect fit from 21 different sizes of premium-quality brass clock keys. Sourced from top manufacturers, these durable keys are designed to protect your clock’s winding mechanism from damage or excessive wear. Please check your clock’s required key size carefully before purchasing. Price is for one key.

These Clock Keys are available in the following sizes:
NO 000 (inside dimensions: 1.75 X 1.75 mm)
NO 00 (inside dimensions: 2.00 X 2.00 mm)
NO 0 (inside dimensions: 2.25 X 2.25 mm)
NO 1 (inside dimensions: 2.50 X 2.50 mm)
NO 2 (inside dimensions: 2.75 X 2.75 mm)
NO 3 (inside dimensions: 3.00 X 3.00 mm)
NO 4 (inside dimensions: 3.25 X 3.25 mm)
NO 5 (inside dimensions: 3.50 X 3.50 mm)
NO 6 (inside dimensions: 3.75 X 3.75 mm)
NO 7 (inside dimensions: 4.00 X 4.00 mm)
NO 8 (inside dimensions: 4.25 X 4.25 mm)
NO 9 (inside dimensions: 4.50 X 4.50 mm)
NO 10 (inside dimensions: 4.75 X 4.75 mm)
NO 11 (inside dimensions: 5.00 X 5.00 mm)
NO 12 (inside dimensions: 5.25 X 5.25 mm)
NO 13 (inside dimensions: 5.50 X 5.50 mm)
NO 14 (inside dimensions: 5.75 X 5.75 mm)
NO 15 (inside dimensions: 6.00 X 6.00 mm)
NO 16 (inside dimensions: 6.25 X 6.25 mm)
NO 17 (inside dimensions: 6.50 X 6.50 mm)
NO 18 (inside dimensions: 6.75 X 6.75 mm)
Explore additional clock keys in our store through our other listings.