Lengths over 6 to 12 inches will have 6 inches of thread

2-4 1/2 x 20 Socket Cap Screw Alloy

3/4-16 x 3 Hex Cap Screw SS 18-8 (A2)

there is no secondary tightening operation required which greatly reduces the overall cost of an anchor installation

5/8-18 x 4 Hex Cap Screw SS 18-8 (A2)

1-8 x 2 1/2 Hex Cap Screw SS 316 (A4) 7/8-9 Socket Cap Screws Alloy Lengths over 6 to 121 8 x 2 1 2 Hex Cap Screw SS 316 (A4) . 316 series stainless steel differs from 18 8 by its molybdenum content (2 3%) and a higher nickel content (10 14%). 316 stainless steel has greater corrosion resistance than 18 8 as well as superior strength at high temperatures.