fasteners anchors bolts electronic metric military nuts pins rings rivets screws socket stainless washers

phone 1-800-479-0056 - fax 1-888-411-2841
You are here: Home > Screws
Screws
Deck Screws Dowel Screws
Deck Screws
Dowel Screws
Drywall Screws Eye Screws
Drywall Screws
Eye Screws
Hi-Lo Self-Tapping Lag Screws
Screws - Hi-Lo Self-Tapping
Lag Screws
Machine Screws Plastite Equivalent Screws
Machine Screws
Plastite Equivalent Screws
Self-Drilling Screws Self-Piercing Screws
Self-Drilling Screws
Self-Piercing Screws
Self-Tapping Screws Sems Screws
Self-Tapping Screws
Sems Screws
Taptite (r) Thread-Rolling Screws Thread-Cutting Screws
Taptite (r) Thread-Rolling Screws
Thread-Cutting Screws
Thumb Screws Trilobular Thread-Rolling Screws
Thumb Screws
Trilobular Thread-Rolling Screws
U-Drive Screws Weld Screws
U-Drive Screws
Weld Screws
Wing Screws Wood Screws
Wing Screws
Wood Screws
A screw is an externally threaded fastener capable of being inserted into holes in assembled parts, of mating with a preformed internal thread or forming its own thread, and of being tightened or released by torquing the head. An externally threaded fastener which is prevented from being turned during assembly and which can be tightened or released only by torquing a nut is a bolt. (Example: round head bolts, track bolts, plow bolts.) An externally threaded fastener that has thread form which prohibits assembly with a nut having a straight thread of multiple pitch length is a screw. (Example: wood screws, tapping screws.)