The Spec Of Concrete Screw :
1. Material: carbon steel, stainless steel.
2. Head style: hex. washer head, flat head.
1. Diameter: 3/16 - 1/4 (M4.80 - M6.30).2. Length: 1 1/4 - 4" (32 - 100mm). ....

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The Spec Of Concrete Screw :
Fong Prean major products are the screws for the drywall and the self-drilling. Most of them will be used in the architecture industry. Through continuous studies and improvement, the quality of its products has upgraded to the professional level and it has won the customers’ recognition. Recently we have developed t....

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