
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.
What do the numbers in screw sizes M3, M4 etc. mean?
Jan 29, 2021 · You asked about M3, M4, etc - that describes (only) the outside diameter of the screw - or the size of an unthreaded hole the screw would slip through. A full description is like …
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 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 Set Screws - McMaster-Carr
Choose from our selection of M3 set screws, including cup-point set screws, nonmarring set 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.
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 …
Metric Screws - McMaster-Carr
Choose from our selection of metric screws, including socket head screws, rounded head screws, and more. Same and Next Day Delivery.
Metric Thumb Screws - McMaster-Carr
Choose from our selection of metric thumb screws, including knurled-head thumb screws, plastic-head thumb screws, and more. Same and Next Day Delivery.
Screws | McMaster-Carr
Choose from our selection of socket head screws, rounded head screws, hex head screws, and more. Same and Next Day Delivery.