**Features** *Flange Head, Cross Recess, AB Point.|*Designed and manufactured to the BS 4174.|*Case hardened to prevent both shearing under load and resistance to excess torque pressure.|*Plated in Chrome free zinc 3 microns (Cr3).|*60 degree self-tapping thread for ease of insertion.|*Sold in one-piece strengthened laminated TIMco branded boxes for market appeal and quality recognition. |*Please call TIMco technical support for recommended hole size in sheet metal.