#2 Square drive

Mechanical Properties:

#11 Heavy Duty Jobber Drill Bit

1 Hex Key Long Arm Alloy

1/4-20 x 2 1/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) 7/8-9 Socket Cap Screws 18-8 Stainless Steel #2 Square drive1 4 20 x 2 1 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (100) . Grade 5 Hex Cap Screws are manufactured in the USA from medium carbon steel. Our Grade 5 material meets or exceeds SAE J429 Grade 5 specifications. All products are manufactured with rolled threads. Typical hardness on diameters 1 4 to 1 inch is HRC 25 34. On diameters over 1 inch to 1 1 2 hardness will range from HRC 19 30. Tensile strength for diameters 1 4 to 1 inch is a minimum