You can order them in the exact quantity you need rather than accepting some arbitrary quantity

restricting movement of the screw when it is subjected to vibration

A new plating that is 7x more corrosion resistant than standard zinc plating

2-4 1/2 x 12 Socket Cap Screw Alloy

9/16 x 13 ITM SDS Max Hammer Drill Bit

9/16-12 x 2 1/4 Grade 8 Hex Cap Screw Plain Domestic USA (25) Phillips Flat Particle Board Screws Plain and Lubed You can order them in9 16 12 x 2 1 4 Grade 8 Hex Cap Screw Plain Domestic USA (25). 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