Product Review

✔ Screw Head Style: Socket Cap; Screw Drive Style: Internal Hex, Known as Hex-socket Drives
✔ Including nuts for your various application
✔ 304 stainless steel, high strength and anti-corrosion in various environments
✔ Fully threaded;Thread Pitch: 0.5 mm, Thread Diameter: 3 mm, Head Diameter: 5.5 mm, Head Height: 3 mm
✔ Meets/Exceeds: DIN 912, ISO 4762
✔ The screws kit comes in an easy-use separated girds storage box

***Specification***
Item----------------------Head Dia.----------Head Height---------Thread Length-------Total Length
M3 x 20mm------------------5.5mm/0.22"-------3mm/0.12"-------------20mm-------------23mm
M3 x 25mm------------------5.5mm/0.22"-------3mm/0.12"-------------25mm-------------28mm
M3 x 30mm------------------5.5mm/0.22"-------3mm/0.12"-------------30mm-------------33mm
M3 x 35mm------------------5.5mm/0.22"-------3mm/0.12"-------------35mm-------------38mm

***Package Quantity***
M3 x 20mm------------------25 Pcs
M3 x 25mm------------------25 Pcs
M3 x 30mm------------------25 Pcs
M3 x 35mm------------------25 Pcs
M3 Nuts----------------------25 Pcs
Total------------------------125 Pcs

***About Internal Hex Drives***
Internal hex drives, also known as hex-socket drives, are similar to hex drives, but have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen wrench.
***About Socket cap screws***
Socket cap screws, also known as Allen head screws, have a recessed drive, and are commonly used when there is not enough clearance for a conventional wrench or socket. They are fastened with an Allen wrench, which is also called a hex wrench or hex key.