M3 x 0.5 x 12 Mm Coarse Plain 18-8 (A2) Stainless Steel Phillips Drive Flat Countersunk Head Machine Screw Best Seller Outside Diameter: 3-7/8 Inch

Outside Diameter: 3-7/8 Inch

Head Diameter Max: 10

the unique mandrel head shape assists in retaining the mandrel within the rivet

L ANCHOR HDG 1/2-13X12 NONUTFW

Stainless steel screws are good for exterior applications as they are naturally resistant to corrosion

M3 x 0.5 x 12 Mm Coarse Plain 18-8 (A2) Stainless Steel Phillips Drive Flat Countersunk Head Machine Screw Best Seller Outside Diameter: 3-7/8 InchThese machine screws have deeply sunk heads with flat top surfaces for fastening flatly against sides of metal joints and equipment. These screws sit flush against the surface of panels and electrical components for a finished look.