Permagrip® Screw Spike

-U.S. Patents 6,808,120 & 6,471,140

​

-Easily driven into SQUARE HOLES where cut spikes have worked loose.

​

-DRAMATIC increase in holding power.

​

-UNIQUE tie-grabbing fins lock like claws to prevent "back out."

​

-IDEAL for the TOUGHEST ENVIRONMENTS such as curves, switches, turnouts or bridges.

​

Square Head Permagrip® Timber Screw Spike

2 2/3 Pitch Quad Lead Thread

Lewis Part: PGFSH