US, 4", 316

US Fasteners, 4", 316
Hex bolts Bolts with hexagonal heads and machine threads for use with a nut or in a tapped hole. Also known as hex cap screws or machine bolts.	Machine screws Screws with machine threads for use with a nut or in a tapped hole.
Carriage bolts & Plow bolts Bolts with no drive and machine threads for use with a nut.	Lag bolts Large wood screws technically called lag screws.
Deck screws & Timber screws Screws for wood to wood fastening applications such as decks, docks and ledgers, etc.	Socket screws Screws with an Allen wrench drive.
Eye bolts & Screw eyes Bolts or screws with a circular ring on the head.	Shoulder bolts Screws with an unthreaded shoulder that is larger in diameter than the threads. Also known as stripper bolts.