Cap screw: steel class 12.9 UNI 5931 DIN 912 Cup washer: hardened and tempered steel, not ground; tensile strength 100 Kg/mm2 Spacer sleeve: hardened, tempered and ground steel; tensile strength 120 - 140 Kg/mm2
Material: high grade alloy steel ISO 12.9 Hardness: 37÷43 HRC Tensile strength: Rm = 1200 N/mm2 min Yield strength: Rp 0,2 = 1080 N/mm2 min. Shear strength: Tm = 720 N/mm2 min. Elongation: A = 8% min. Impact test: KCU 15J min. KCU 15J min.
