AbsoluteBLACK Integrated Top Cap

From $29.99
Absolute Black's Integrated Top Cap is probably the best top cap you will ever have. One piece, bolt and topcap with Allen (hex) 5mm socket. It will fit to every standard starnut.
. Size (Mass +/-1g): only 5g . Colour: Red, Gold, Green . Key required: Allen 5mm . Material: CNC machined 7075