16B-1 roller chain (British Standard / ISO 606 / DIN 8187) features a 1-inch (25.40 mm) pitch, an inner plate width of 17.02 mm, and a roller diameter of 15.88 mm. It is a single-strand (simplex) power transmission chain.

• Pitch (P): 25.40 mm (1.000 in)
• Width Between Inner Plates (b₁): 17.02 mm (0.670 in)
• Roller Diameter (d₁): 15.88 mm (0.625 in)
• Pin Diameter (d₂): 8.28 mm (0.326 in)
• Pin Length / Overall Width (L): 36.10 mm (1.421 in)
• Link Plate Height (h₂): 21.00 mm (0.827 in)
• Plate Thickness (T): 4.15 mm (0.156 in) [1, 2]