Chipboard screws are self tapping fasteners designed for particle board, MDF, and engineered wood thin shank, coarse full thread, sharp self tapping tip
Thread: Coarse, deep, full length thread (vs. partial on wood screws) for strong grip in crumbly coreShank: Thinner than wood screws; core diameter determines shear strength (typical 2.8 3.3mm)
Material: Hardened carbon steel (standard), stainless steel (outdoor wet areas), brass (decorative).
Finishes:
Zinc plated (blue yellow): Indoor, basic corrosion resistance.
Hot-dip galvanized:
Diameter: 3.0 6.0 mm (#4 #12); 4.0 5.0 mm (#6 #8) most used for furniture.
Length: 15 100 mm,rule of thumb: 2.5 top panel thickness (18 mm board 40 45 mm screw)
Furniture: Cabinets, shelves, wardrobes, bed frames.
Joinery: Wood wood, wood metal connections (brackets, hinges)
No pre drilling needed for most indoor applications (softwood/chipboard)
Torque: 2.5 4 Nm (over torque causes stripping cracking)
Edge distance: 2 screw diameter to avoid splitting
Withdrawal strength: Higher than standard wood screws in particle board MDF