#23 Heavy Duty Drill Bit - Stubby Length

5/8-11 x 4 Flat Socket Cap Screw 18-8 (A2) Stainless Steel

3/4-10 x 16 Socket Cap Screw Alloy

Category 1 is the highest attainable anchor category for reliability

thicker diameter and additional thread

7/8-9 x 4 1/4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) 3/4-10 A307A Hex Bolts Zinc Plated #23 Heavy Duty Drill Bit7 8 9 x 4 1 4 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (15) . 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