M3 x 0.5 M4 x 0.7 M5 x 0.8 M6 x 1 M8 x 1.25 M10 x 1.5. Sp ecification model: Flat Knurled Head. Thread Pitch - 0.5 to 1.5. Material: Aluminum Alloy. which leads to the actual price may be more expensive or cheaper than the price in the link, hope you can understand.
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