Nissan Stagea WC34 RB25DET
Series 1 4WD- Twin Cam, Turbo
Sept 96- Aug 98
High Quality Head Bolt Set
Complete set of 14 high quality Head Bolts for the WC34 Stagea RB25DET from Nissan specialists Conceptua Tuning. These are great quality items, and come complete with a 12.9 grade stamp on the head- assuring you of the quality and strength of these bolts.
The 12.9 grade indicates these are genuine quality, high strength alloy steel- which has been correctly quenched and tempered. The Tensile Yield Strength (MPa, Min) is at least 1100, and the Tensile Ultimate Strength has to be a minimum of (MPa, Min) 1220. The Rockwell hardness is a minimum of 30N63 at the surface, and C38 in the core.