#12 Indent Hex Washer Head (HWH) UnSlotted Self-Drilling* Sheet Metal screws. These are 410 Hardened Stainless Steel screws with a #3 point (410 stainless steel is always magnetic).
Diameter: #12 / 0.216"
Thread Size: 14 TPI
Length: Please select from drop down menu above.
Material, Plating: 410 Hardened Stainless Steel
Type: Sheet Metal Screw, Self-Drilling w #3 point
System of Measurement: Inch (Imperial / US)
Width Across Flats (AF): 5/16: (Hex Drive size)
Head Diam. (Max, Min): Max 0.432", Min 0.398"
Head Height (Max, Min): Max 0.194", Min 0.161"
Washer Thickness (Max, Min): Max 0.039", Min 0.022"
Specifications: ASME B18.6.3, IFI-113
* Self-drilling through metal up to 0.150" or up to 12 Gauge sheet metal. For best results, use high pressure, low speed to avoid wearing out the self-drilling tip.