1946 Delahaye Type 135 MS cylinder head bolt. Made from 4140 steel. Heat treated to grade 8 and finished in black oxide for maximum strength, wear resistance and corrosion resistance.
Material: 4140 Steel. heat treat grade 8
Finish: Black oxide
Thread: M12 – 1.50
Thread length: 32mm
OAL: 124mm
Head square: 12mm x 12mm
Head OD: 18mm
Length under head: 106mm
