Hexagonal Lag Screw Stainless Steel 3/8 * 12" length_1 The nuts have a thread

The nuts have a thread of 7/8-9 and a lenght of 2

This hexagonal bolt has a length of 4-1/2" with a threading of 1-1/4-7 [Partially Threaded]

This hexagonal bolt has a length of 4" with a threading of 1-8 [Partially Threaded]

The screws have a thread of 1-1/2-6 and a length of 6-1/2

Hexagonal Lag Screw Stainless Steel 3/8 * 12" length_1 The nuts have a thread18 8 stainless steel screws have good chemical resistance and are a good choice for ACQ treated (arsenic free) lumber. Also known as lag bolts, they have a hex head for a secure grip with a wrench. They press threads into material for a tight, secure hold. To prevent splitting, drill a pilot hole slightly smaller than the screw. They may be mildly magnetic. Length is measured from under the head. The screw has a length of 12 and a diameter of 3 8.