With a tensile strength up to 180,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws

Plastic screws are chemical and oil resistant, nonconductive, and lightweight.

Prevent loosening from vibration with these screws, which have a locking feature to hold them tight.

Seal out contaminants and prevent leaks—a rubber O-ring under the head prevents leaks and seals out contaminants.

The nylon patch bonded to the threads of these socket head screws adds friction to keep vibration from loosening them, while their O-ring prevents leaks and seals out contaminants.