SCREW, OVAL 6x10mm THESE WILL RUST IF USED WHERE TEMPS REACH 450 DEGREES OR MORE. BUT HONDA SAYS OK ON BOTTOM OF BOOMERANG SHIELD ON CT90/110'S, BUT YOUR SUSPOSED TO USE THE INSOLATING WASHER #B41D WITH IT ): 258i$0.65 *HEAT_SHIELD_SCREW FIBER INSULATING_WASHER 18292-167-890 1/21A (B41D)THESE GO UNDER THE HEAD OF THE LARGE HEAT SHIELD TAPERED SCREWS TO KEEP THEM FROM BURNING YOUR LEGS.THESE ARE SOLD EACH. (B41D)$1.59