Truvativ Singlespeed Chainring Bolts, set of 5
These are favourite singlespeed chainring bolts. Black steel, with a mild threadlocker already applied. Comes with a 2mm spacer that fits on the inside. 5mm hex on the outside, 6mm hex on the inner. The threadlocker acts as a barrier and prevents corrosion from fusing them together (to some degree, anyway).