About the product
- Made of 12.9 Grade Alloy Steel, with a black surface oxidation treatment, these bolts are strong, durable, and have excellent wear resistance, high hardness, and high strength. Please do not install them in wet environments or outdoors.
- Metric M4 screws,Thread Diameter: 4mm; Thread Length: 30mm; Pitch Size: 0.7mm.
- Package Included: 50 x socket head screws
- Perfect For Interior Renovation, Mechanical Installation Communication Equipments and Ship Assembly
- 100% customer satisfaction, if you are not satisfied with the product, you can always send us an email to us, provide you with satisfactory service in the first time, you can also get a full refund, please rest assured to buy.
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