They hold together everything from the most delicate watch to the largest bridge. The world is literally kept from coming apart by screws and bolts, and yet we don’t often give a thought to these ...

Tapping screws form mating threads in materials they are driven into. There are two basic types: thread forming and thread cutting. The thread-forming screw displaced material around the pilot hole so ...

Inspection for bone screws is a complicated process. Using a thread gauge measurement approach may enable a streamlined manufacturing process. Controlling the manufacture of bone and pedicle screws ...

PEM C.A.P.S. spring-loaded captive panel screws install permanently in aluminum or steel sheets as thin as 0.036 in. The screws install by pressing into prepared mounting holes. The shoulder on the ...

Matching a replacement screw or bolt can be a headache given the number of sizes and threading pitches you can find in even a modest hardware store. Mate the old and new for a perfect match.