Xinzuo bimetal self-drilling screws with a hex head for fastening to steel structures and thick sheet metal. Combination of 304 and 435 steel with an anti-corrosion coating.
- Size: 5.5-14, length 25, 32, 38, 50, 63, 75 mm
- Material: 304 + 435 steel
- Standard: Chinese national standard (GB)
Used in steel-frame building construction.














Brand:
Xinzuo
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