They are actually stronger than most metal and chemical anchors because the all plastic plug bonds through friction to concrete

salt spray resistance

10 x 2 1/2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Carton (1000)

5/8-11 x 6 Socket Cap Screw 18-8 (A2) Stainless Steel

00 x 350 Socket Cap Screw 12

5/16-18 x 5 1/2 Grade 8 Hex Cap Screw Plain Domestic USA (50) 1/2 Cotter Pins Plain Steel They are actually stronger than5 16 18 x 5 1 2 Grade 8 Hex Cap Screw Plain Domestic USA (50). Grade 8 Hex Cap Screws are manufactured in the USA from medium carbon alloy steel. In diameters 1 4 to 1 1 2 inches our Grade 8 material meets or exceeds SAE J429 Grade 8 specifications. Diameters over 1 1 2 inches meet or exceed ASTM A354 Grade BD. All material is manufactured with rolled threads. Yellow zinc plated bolting will meet or exceed ASTM F1941. Typical hardness on diameters 1 4