TIMCO Classic 3.5 x 20 Multi-Purpose Countersunk A2 Stainless Steel Woodcrews (Box of 200)

All the features and superior performance of the Classic Multi-Purpose Screw manufactured from A2 Stainless Steel. Ideal where ultimate corrosion resistance is required when fixing to softwoods, hardwood (pre-drilled), chipboard, MDF and plastic. Stainless steel must be used where there is corrosive environment and/or the base material has inherent corrosive characteristics e.g. Green Oak. NOTE: Sharp point only.
Double countersunk reduces the likelihood of head shear and assists completion of countersinking.
40° deep single thread to provide a secure fixing with high pull-out resistance.
All sizes up to and including 75mm are fully threaded and lengths 80mm and above all have 70mm thread length

TECHNICAL DATA:
Thread Dia. mm: 3.5
Length mm: 20
Thread Length mm: 15
Size mm: 3.5 x 20
Pack Quantity Unit: Pieces
Recess Type: Pozi
Head Dia. mm: 6.68
Substrates: Hardwood, Softwood, Chipboard, MDF, Plastic, Thin Sheet Metal, Corrosive Wood (e.g. Oak, Cedar)
Gauge: 6
Salt Spray Resistance BS EN 9227 Hrs: 1,008 +
Corrosion Rating: 4 - Urban; industrial areas with a moderate salt atmosphere
Driver Bit Size: PZ2
Thread Type: Single Coarse 40°
Point Type: 25° Sharp
Size imp.: 6 x 3/4