Modify truss head　
*Wafer/Phil. Head Tapping Screws,Twinfast Thread,C1018 or C1022+Harden

*Finish:ZP,ZY　
　
Item
Spec.
U.Weight /Mpcs
1
4.2 x 13
1.72
2
4.2 x 16
1.84
3
4.2 x 19
2.06
4
4.2 x 25
2.55
5
4.2 x 32
2.92
6
4.2 x 41
3.42
7
4.2 x 50
4.27
　

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