18-8, US, 3", 7

US Fasteners, 18-8, 3", 7
Lag bolts Large wood screws technically called lag screws.	Nuts Nuts have internal machine threads, for use with machine thread bolts and screws.
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.