The anchor’s flange nylon head provides additional stability when installing into hollow materials

1-8 x 10 Grade 5 Hex Cap Screw Zinc Plated

1-8 x 10 Grade 8 Hex Cap Screw Yellow Zinc Plated

2 3/4-8 A194 2H Heavy Hex Nut Plain

1/2 Cobalt Heavy Duty Jobber Drill Bit (6) Jobber Drill Bits - Wire Gauge The anchor’s flange nylon head1 2 Cobalt Heavy Duty Jobber Drill Bit . Heavy duty construction made to Type J aircraft specifications. Used for drilling holes in hard, tough materials such as stainless steel, titanium, high temperature and high strength alloys. High red hardness of cobalt permits speeds 30% greater than standard heavy duty split point (HSS) drills.