The thread is deep and clear without burr, high quality carbon steel forging, fastening effect is better. Non-slip screws for locking, you can lock directly into the wood or thin iron. -Type:Self Tapping Screws.

Brand: Unbranded
Material: Stainless Steel
Mandrel Material: Stainless Steel
Screw Size: M3 M3.5 M4 M5
Shape: Round
Head Style: Round Head
Drive Style: Phillips
System of Measurement: Metric
Model: 500Pcs Self-Tapping Screws Set
Unit Quantity: 500pcs