Use with stable woods and wood substitutes when screw heads need to be hidden

10-24 x 1/2 Phillips Flat 82 Undercut Machine Screw Black Zinc Plated (10

8 DIN 933 Zinc Plated (Fully Threaded) - Class 8

7/8-9 x 4 1/4 Hex Cap Screw SS 316 (A4)

1/4-20 x 2 Grade 8 Hex Cap Screw Yellow Zinc Plated Domestic USA (100)

3/4-16 x 2 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (90) 7/8-9 Grade 5 Hex Cap Screws Zinc Plated Use with stable woods and3 4 16 x 2 1 2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (90) . 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