The Spec Of Self Drilling Screw :
1. Material: carbon steel, stainless steel.
2. Head style: hex. washer head, hex. flange washer head, pan head, flat head, thin wafer head, modify truss head, button head, oval head.
1. Diameter: #2 - 5/16 (M2 - M8).2. Length: 1/4 - 15" (6.35 - 400mm).3. Point: No. 1 - No. 5. ....

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The Spec Of Self Drilling Screw :
One operation , Save money, Easy to use

The application of the self-drilling screws is to drill and tap into steels for building and construction. No pre-drilling polit hole needed. Self-drilling screws are composed of TY ASD, BSD, or CSD with point #2, #3, #4, #5, and #6 depending on the thickness of metal sheet t....

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