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Answer:

In general, 45 steel screws can make it.

Grade: 45
Mass fraction of chemical composition% | C: 0.42 ~ 0.50
Mass fraction of chemical composition% | Si: 0.17 ~ 0.37
Mass fraction of chemical composition% | Mn: 0.50 ~ 0.80
Mass fraction of chemical composition% | Cr ≤: 0.25
Mass fraction of chemical composition% | Ni ≤: 0.30
Mass fraction of chemical composition% | Cu ≤: 0.25

Sample of blankdimension size / mm: 25
Recommended heat treatment / ℃ | normalizing: 850
Recommended heat treatment / ℃ | Quenching: 840
Recommended heat treatment / ℃ | Tempering: 600
Mechanical Properties | σb / MPa ≥: 600
Mechanical properties | σs / MPa ≥: 355
Mechanical Properties | δ5 (%) ≥: 16
Mechanical Properties of | ψ (%) ≥: 40
Mechanical properties | AKU / J ≥: 39
Delivery status of steel hardness HBS10/3000, ≤ | not heat-treated steel: 229
Delivery status of steel hardness HBS10/3000, ≤ | Annealed steel: 197
Main features: The most commonly used in quenched and tempered carbon steel, it has good mechanical properties and low hardenability, prone to crack when in the water quenching. Small pieces could adopt the thermal treatment, large pieces could adopt the normalizing treatment.
Application examples: Mainly used in the manufacture of high strength parts, such as the turbine impeller, the compressor piston. Shaft, gear, rack, worm and so on. Note preheat welding parts and stress relief annealing after welding.

Shanghai Metal Corporation could provide high quality products.