Shenzhen Feitai Hardware Products Co., Ltd.
Shenzhen Feitai Hardware Products Co., Ltd.
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Cross Recessed Pan Head Screws ,GB9074.8 Black Round Head Flat Spring Washer ,Triple Screw Bolts M2M3M4M6
Material
Carbon steel Grade 4.8
Surface treatment
Oxidation blackening
Standard number
GB9074.8
Strength class
Class 4.8
Thread type
Full thread type
Head shape
pan head screw
Product name: black zinc plated screw combination
Material: plain carbon steel
Surface treatment: black zinc plating
Product specifications: Complete specifications
Product standard: National standard
Packing instructions: Bag/box
Product details:
Standard manufacturing process:
The standard manufacturing process is not easy to appear in the installation process,
which greatly saves the installation time.
Spiral thread: the surface is smooth and flat, the thread is sharp and the tapping speed is fast,
it is not easy to lose teeth, and it is not easy to be pulled into a jack.
Flat without burrs
Smooth surface without burrs, quality workmanship, durable, not easy to slip wire is not easy to slip.