8-18X3/4 Phillips Bugle Head Full Thread Self Drilling Drywall Screw Zinc (Pack Qty 3,000) BC-0812KPGZ

PICTURES ARE REPRESENTATIVE OF ITEM, BUT ARE NOT OF THE ACTUAL ITEM. Product dimensions, finish, head markings, thread length, stamping shape or forging shape, etc., may differ from picture. Products are guaranteed to meet the specifications to which they are manufactured. Specifications allow for tolerances in dimension and shape, which can vary from lot to lot. Class 04 metric hex jam nuts are tightened against the work surface and a Style 1 or Style 2 hex nut is tightened against the jam nut to keep it from loosening. Class 50 A2 stainless hex jam nuts are used in the same manner with A2 stainless screws. Class 04 hex jam nuts shall be made of a steel that conforms to the following chemical composition-- Carbon: 0.58% maximum; Manganese: 0.25% minimum; Phosphorus: 0.060% maximum; Sulfur: o.150% maximum. Class A2 stainless steel. HV 188 - 302 (Rockwell B88 - C30).

• Fine thread Drywall--Sharp point: For attaching drywall to metal studs from 25 gage through 20 gage thick. Longer sizes are ideal for multiple layers or insulation. Fine thread Drywall--Drill point: Will drive easily through drywall, drill a hole in a steel stud up to 14 gage thick, and form its own mating thread. Can also be used for attaching plywood or insulation board to 14 gage metal
• AISI 1018 or equivalent steel
• Screws shall be quenched in liquid and then tempered by reheating to 650°F minimum