3/4-10 x 11 A307 Grade A Carriage Bolt HDG

Countersinks into log

00 x 180 Socket Cap Screw 12

316 stainless steel is ideal where superior corrosion resistance is required

1 3/4-5 x 4 1/2 Socket Cap Screw Alloy

2 1/4 F436 Flat Washer HDG M14-2.00 Socket Cap Screws 12.9 Alloy Plain DIN 912 3/4-10 x 11 A307 Grade2 1 4 F436 Flat Washer HDG . F436 flat washers are manufactured from carbon steel to meet or exceed ASTM F436. Zinc plated material will meet or exceed ASTM F1941. Hot Dip Galvanized material will meet or exceed ASTM A153 and or ASTM F2329. Hardness for plain and zinc plated washers is HRC 38 45 and HRC 26 45 for hot dip galvanized washers per ASTM F436.