Description:These caps cover nuts and exposed bolts and provide effective protection against damage and weathering and improve the finished appearance of your product.Features: brand new and high quality Intended for Hexagon shaped bolts and nuts. Improving the finished appearance of your product. Protect against weathering and tampering. Enhance finished to nuts and bolt heads. Easy to fit and to remove. Specification:Optional Model: M6, M8, M10, M12Material: PlasticDimensions: As pictures shown.(approx)Size Edge Width(S) Total Height(H) Height(E) Outer Diameter(D) Wrench(Sleeve) SizeM6 10mm(0.03in) 13mm(0.05in) 6mm(0.02in) 12.5mm(0.04in) 10mmM8 13mm(0.05in) 15mm(0.05in) 8.5mm(0.03in) 17mm(0.06in) 12mm, 13mm, 14mmM10 17mm(0.06in) 19.5mm(0.07in) 9mm(0.03in) 21mm(0.08in) 16mm, 17mmM12 19mm(0.07in) 22mm(0.08in) 12mm(0.04in) 24mm(0.09in) 18mm, 19mmColor: BlackQuantity: 1 pack(10pcs)Note:Transition: 1cm=10mm=0.39inchNo retail package.Please allow 1-3mm error due to manual measurement. pls make sure you do not mind before you bid.Due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you!Package includes:1 pack(10pcs) x Bolt Nuts Caps(other acceories demo in the picture is not included.)