By utilizing a reliable Alligator anchor to supplement your screws

Countersinks into log

9/16-18 x 4 1/2 Hex Cap Screw SS 18-8 (A2)

5/8-18 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (25)

and its jaws open into lock position when placed within a hollow surface

5/16-18 x 1/2 Grade 5 Hex Cap Screw Plain Domestic USA (100) M24-3.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 By utilizing a reliable Alligator5 16 18 x 1 2 Grade 5 Hex Cap Screw Plain Domestic USA (100). Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum of