1-8 x 12 Grade 5 Hex Cap Screw Zinc Plated

#2 drill point for quick penetration of metal up to 0

permanent and semi-permanent location of parts on shafts with hardness differential of 10-15 Rockwell C points and where cutting in of cup edge on the shaft is acceptable

A uniquely tapered head countersinks easily into wood for a sharp flush appearance

5/16-18 x 5 Grade 8 Hex Cap Screw Plain Domestic USA (250)

5/16-24 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1400) Combo Mushroom Toggle Bolts Zinc Plated 1-8 x 12 Grade 55 16 24 x 1 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (1400) . 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 of