The H&R wheel bolt is a 14 x 1.5mm, 63mm ball-seat fastener with a 17mm head, specified for Mercedes-style ball-seat applications. It delivers the seating geometry required for Mercedes wheel seats and is intended for use where a longer 63mm 14x1.5 ball-seat bolt is required to secure the wheel to the hub.
H&R Wheel Bolt Type 14 X 1.5 Length 63mm Type Merc Ball R14 Head 17mm