The heavy construction affords efficient drilling in stainless steel and other hard materials

5/8-11 x 14 Socket Cap Screw Alloy

#37 x 6 High Speed Aircraft Bit Cobalt

That's why it's holding up the sprinkler system in the Tokyo subway

10 x 3 1/2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Box (100)

1/2-13 x 2 1/2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) Square Pancake-Head Self Tapping Screw 410 Stainless Steel The heavy construction affords efficient1 2 13 x 2 1 2 L9 Hex Cap Screw Yellow Zinc Plated Domestic USA (50) . L9 High Tensile Strength Hex Cap Screws are designed for use in high stress, severe service environments. The highest mechanical strength off the shelf fastening system available, its special features control torque tension characteristics to develop high clamp loads when using properly controlled tightening methods. Brighton Best manufactures L9 bolting from AISI alloy steels. L9