Slotted Countersunk

Description

**Features**
For general applications into softwoods and various types of hardwood.
*Designed and manufactured to BS 1210 Standards - major diameter and threads excepted.| *25 degree sharp point and single leading thread for a fast start and improved thread acceptance.| *60 degree Twin-threads with parallel shank for faster insertion and greater pull out resistance.| *Large core diameter for extra strength.| *Surface hardened up to 750 HV to prevent torque shearing under load and a core hardness of up to 450 HV for improved ductility.| *Plated in zinc 3-5 microns.| *Made from C10-18 Steel to ensure consistent quality.| *Double countersunk reduces the likelihood of head shear and assists completion of countersinking.| *Full batch-traceability to the original steel mill certificate.