Comparison : Item # THD50612H4SS, 1/2" x 6-1/2" Simpson Titen HD® Heavy Duty Concrete & Masonry Screw Anchor 304 Stainless (20 Per Pack)
Item # THD50612H6SS, 1/2" x 6-1/2" Simpson Titen HD® Heavy Duty Concrete & Masonry Screw Anchor 316 Stainless Steel (20 Per Pack)
Item # THDB62612H4SS, 5/8" x 6-1/2" Simpson Titen HD® Heavy Duty Concrete & Masonry Screw Anchor 304 Stainless Steel (10 Per Pack)
Item # THDB62612H6SS, 5/8" x 6-1/2" Simpson Titen HD® Heavy Duty Concrete & Masonry Screw Anchor 316 Stainless Steel (10 Per Pack)
Item # THD37212CS, 3/8" x 2 1/2" Simpson Titen HD® Countersunk Heavy Duty Concrete & Masonry Screw Anchor (50 Per Pack)