3/8-16 x 6 Flat Sleeve Anchor Zinc Plated (50)

5/8-11 x 1 1/2 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (25)

9/16-18 L9 Hex Collar Locknuts Cadmium Yellow & Wax Coated Domestic USA (800)

5/16-24 x 5 Grade 5 Hex Cap Screw Zinc Plated Domestic USA (250)

It is 1 1/4-7 x 4 1/2 inch in size and comes in a bulk keg of 90 pieces

7/16" X 2" HSS Annular Cutter, Qualtech, Premium, DWC5-530-210 Nylon Insert Locknuts Zinc Plated 3/8-16 x 6 Flat SleeveAnnular cutters are designed for fast, efficient hole making. Annular cutters cut only that material necessary to produce a quality hole. Works with Hougen Magnetic Drill, Milwaukee and similar machines.