Research & Development
Overproportion Fastener
With the advantage of environmental quality, durability and corrosion resistance, we have custom designed and manufactured fasteners with various heads, drives and threads dedicated to different usages and needs. The diverse over-proportion fasteners perform the best mechanical quality on sanitary wares, building facades and constructions.
Indented Hex Flange w. Serration Bolt

 

 Indented Hex Washer PT Thread Forming Screw 1 Truss Head (Slotted) Machine Screw
T (-) 5/16-18×1-1/4
Pan Head (Pozidrive & Sloted) PT Thread Forming Screw 2 Button Head (Torx) Machine Screw
BT (TR) 1/2-13×1-1/4
Pan Head Washer (Torx) PT Thread Forming Screw 3 Indented Hex Flange Bolt
IHF 7/16-14×2-1/8
Pan Head (Torx) PT Thread Forming Screw 4 Indented Hex Flange w. Serration Bolt
IHF 1/2-13×2"-Serration
Pan Head Washer (Torx) PT Thread Forming Screw 5 Hexagon w. Special Washer Bolt
3/18-16×25.85