4Pc Sickspeed Spiked Bolt For Engine Bay Dress Up Kit 10X1.25 P1 Neo Chrome for Honda Civic This is a set of 4 neo&nbsp;Technidize&nbsp; finished spiked bolts Made from weapons grade billet aluminum. Ideal for most strut towers as a bolt replacement. Spikes weigh in at 20 grams a piece spikes have a total length of 40mm(1.57")