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12.9 stage outside six corners screw M12*20/25/30/40/50/60/70/80/90/100/120/150

12.9 grade screw is usually made of SCM435 alloy steel, its minimum tensile strength reaches 1220Mpa, and its hardness reaches 39~44HRC of ultra-high strength screw. Anti skidding! Grade 12.9 is the grade of screw, it has high hardness and tensile strength, its Rockwell hardness (HRC) can reach 39-44, tensile strength can reach 1220N/mm2.

discount 70% in 2018-10-16 to 2018-10-18
price: USD$ 5.52
freight :USD$18.00,(Express)
freight :USD$7.00,(Postal parcel)
Minimum Order Quantity:2
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