Screws up to 1" in length are fully threaded

8 x 1 5/8 Simpson Mod Truss-Head Self-Drilling Wire Lath Screws - Phillips Drive 410 SS - Box (100)

1 1/4-7 x 6 Socket Cap Screw Alloy

1/4-28 x 5/8 Grade 8 Hex Cap Screw Plain Domestic USA (3000)

1/2 x 18 High Speed Aircraft Bit

1/4-28 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (450) 3/4-10 Socket Cap Screws 18-8 Stainless Steel Screws up to 1" in1 4 28 x 4 Grade 5 Hex Cap Screw Plain Domestic USA (450). 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 120,000