A307 Grade A Carriage Bolts are manufactured from low carbon steel to meet or exceed ASTM A307 Grade A

this toggle bolt comes with the promise of both high quality and durability

1/16 Heavy Duty Jobber Drill Bit

a new plating that is 7x more corrosion resistant than standard zinc plating

1/4 x 2 1/2 Mushroom Spike Zinc Plated (100)

15/32 Cobalt Heavy Duty Jobber Drill Bit (6) 1/2-13 Grade 5 Hex Cap Screws Zinc Plated A307 Grade A Carriage Bolts15 32 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.