
M3 Bolts | McMaster-Carr
Choose from our selection of M3 bolts, including hex head screws, socket head screws, and more. Same and Next Day Delivery.
M3 Screws - McMaster-Carr
Choose from our selection of M3 screws, including socket head screws, rounded head screws, and more. Same and Next Day Delivery.
M3 Socket Head Cap Screws - McMaster-Carr
Choose from our selection of M3 socket head cap screws, including alloy steel socket head screws, 18-8 stainless steel socket head screws, and more. Same and Next Day Delivery.
M3 Fasteners - McMaster-Carr
Choose from our selection of M3 fasteners, including socket head screws, rounded head screws, and more. Same and Next Day Delivery.
M3 Shoulder Bolts - McMaster-Carr
Choose from our selection of M3 shoulder bolts, including alloy steel shoulder screws, metric alloy steel shoulder screws, and more. Same and Next Day Delivery.
M3 Nuts - McMaster-Carr
Choose from our selection of M3 nuts, including hex nuts, locknuts, and more. Same and Next Day Delivery.
Screw Size Charts - McMaster-Carr
Choose from our selection of screw size identifiers, screw, bolt, and nut size identifiers, reference charts, and more. Same and Next Day Delivery.
Metric Screw Assortments - McMaster-Carr
750 Rounded Head Screws (M3 to M6) 580 Hex Head Screws (M4 to M12) 60 Set Screws (M4 to M6) 1,475 Hex Nuts (M3 to M12) 1,225 Flat Washers (For M4 to M12 Screw Sizes) 1,600 …
M3 Washers - McMaster-Carr
Choose from our selection of M3 washers, including washers, lock washers, and more. Same and Next Day Delivery.
Metric Torx Screws - McMaster-Carr
Choose from our selection of metric Torx screws, including socket head screws, rounded head screws, and more. Same and Next Day Deliver