National Nail Structural Screws 4 x 1/4" 50 Count Brand_Liquid Fire Working water pressure: 15 psi

Working water pressure: 15 psi (minimum) – 90 psi (maximum)

for 1 or 2 f17t8

Ideal for applications where lower flashpoint solvents can be used

controllable cutting action

National Nail Structural Screws 4 x 1/4" 50 Count Brand_Liquid Fire Working water pressure: 15 psi1 4 in. (6. 35mm) structural screw for deck substructure, deck posts, beams, handrails, landscape timbers, and more Replaces 3 8 in. (9. 53mm) lag screws Sharp point starts fast with no pre drilling Flat, washer style head provides stronger holding power and greater surface contact and finishes flush 3rd party tested for screw strength confirmation T 30 and T 40 Star Drive provides more points of contact, reducing cam outs and limiting bit wear