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Screws
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Square Nuts
Square Nuts
Square Nuts
1/4 ~ 1-1/2
Carbon Steel 、Stainless Steel、Brass、Aluminum
Trivalent Zinc、Passivated、Bright Dipped、etc...
Per
ASME/ANSI B18.2.2 1987 (R1999)
DIN 562
DIN557
etc...
Flat Washers
Hex Head Cap...
Phil Truss H...
Ind Hex Wash...
Phil & Slot ...