Hardened steel. Partially threaded.

Specification
BrandEssentials
Collated/UncollatedUncollated
Construction Material (Screws)Hardened Steel
Head TypePan
Head Type DescriptionReinforced Pan Head for a Stronger Fixing
Indoor/Outdoor UsageIndoor & Outdoor
Manufacturer Guarantee1 Year Guarantee
Pack Size20
Pieces in Pack/Case20
Product TypeRoofing Screws
Resistant TypeWeather-Resistant
Screw CoatingUncoated
Screw Diameter4mm
Screw Diameter (mm)4 mm
Screw FinishBright Zinc-Plated
Screw Length60mm
Screw Length (mm)60 mm
Screw Pilot Hole RequirementsNo Pilot Hole or Pre-Drilling Required
Screwdriver TypePZ
StandardEN 14592.
Thread LengthFully Threaded