Thread Major diameter Pitch Pitch diameter Minor diameter male thread Minor diameter female thread; M12: 12.0: 1.75: 10.863: 9.853

Also known as Fastite screws, these offer more thread engagement in 0.028" to 0.063" thick sheets to prevent overtightening and damaging threads. They're made from steel and have a zinc plating to resist corrosion in wet environments. Length is measured from under the head.

Choose from our selection of M3 screws, including socket head screws, rounded head screws, and more. Same and Next Day Delivery.

Choose from our selection of M3 threaded rods, including high-strength steel threaded rods, medium-strength steel threaded rods, and more. Same and Next Day Delivery.

A distorted thread grips the screw to resist loosening. Also known as Heli-Coil inserts, these inserts have coils that expand once installed to securely anchor the insert. All have a prong for ease of installation. An installation tool grips the prong and reduces the coil diameter, enabling the insert to fit in tapped holes.

Measure thread spacing. This corresponds to the second number of the thread size. For inches, this is done by counting the number of threads in an inch. For metric screws, this is the length in millimeters between threads. Inch. Inch thread sizes are specified by diameter and threads per inch. Diameter is also known as screw size.

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.

In addition to joining male- and female-threaded parts, these adapters can increase or decrease metric thread sizes and change the thread pitch. Inch-to-Metric Male Hex Thread Adapters One side inch, one side metric, and a hex in the middle— these handy fasteners connect two female-threaded parts, such as coupling nuts, adapting from inch ...

Choose from our selection of M3 inserts, including threaded inserts, nuts, and more. Same and Next Day Delivery.

Universal-Thread Stainless Steel Push-to-Connect Tube Fittings for Air and Water Often used in outdoor, damp, and washdown environments, these 316 stainless steel fittings will not corrode from water, salt, or chemicals.