1 1/2-6 x 3 1/2 Socket Set Screw Cup Point Alloy

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

8 x 2 Simpson Bugle-Head Self-Drilling Screw - Square Drive 410 SS - Box (100)

5/64 Heavy Duty Drill Bit - Stubby Length

Expands the size range capacity of a 1/2 inch portable drill chuck

1/2-20 x 3/4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) LedgerLOK Ledger Board Fasteners 1 1/2-6 x 3 1/21 2 20 x 3 4 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (50) . 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