Feature

●? Includes 500 Pcs, 13 Sizes, M3 Hex Socket Head Cap Screws, Thread Pitch 0.5 mm, Thread Size (Diameter) 3 mm, Thread Length From 4 mm to 50 mm: M3 x 4, M3 x 6, M3 x 8, M3 x10, M3 x 12, M3 x 16, M3 x 20, M3 x 25, M3 x 30, M3 x 35, M3 x 40, M3 x 45, M3 x 50
●? Includes 500 Pcs Thread Pitch 0.5 mm M3 Hex Nuts to Meet Different Applications
●? Includes 500 Pcs Φ3 Washers: Add More Touch Area to Meet Different Applications, Protect Parts from Being Damaged
●? Includes 1 Pcs Hex Key, Hex Size: 2.5 mm, to Drive These Screws Conveniently and Easily
●? All Screws, Nuts and Washers are Made of Stainless Steel 304: High Strength and Anti-corrosion in Various Conditions; Hex Key is Made of Chrome-Vanadium Steel and Nickel Plated: Higher Strength and Anti-rust; All These Screws, Nuts, Washers and Hex Key Packed In a Sturdy Easy-use Storage Case, Organized Conveniently and Easily

[M2 x 4 ~ 25]

[M3 x 4 ~ 30]

[M3 x 4 ~ 50]

Description

? Meets/Exceeds: DIN 912, DIN934, DIN125
? Screw head style: socket cap; screws drive system: Internal Hex drives, known as hex socket, hex size: 2.5 mm
? Screw head diameter: 5.5mm; screws head height: 3mm; thread pitch: 0.5mm; thread diameter: 3mm
? M3 x 4 means: metric screws, thread diameter size 3mm, thread length 4mm

[Sizes]---[Thread Length]---[Total Length]
M3 x 4------4mm-----7mm
M3 x 6------6mm-----9mm
M3 x 8------8mm----11mm
M3 x 10----10mm----13mm
M3 x 12----12mm----15mm
M3 x 16----16mm----19mm
M3 x 20----20mm----23mm
M3 x 25----25mm----28mm
M3 x 30----30mm----33mm
M3 x 35----35mm----38mm
M3 x 40----40mm----43mm
M3 x 45----45mm----48mm
M3 x 50----50mm----53mm

Package Contains:
M3 x 4----50Pcs
M3 x 6----50Pcs
M3 x 8----50Pcs
M3 x 10---50Pcs
M3 x 12---50Pcs
M3 x 16---50Pcs
M3 x 20---50Pcs
M3 x 25---25Pcs
M3 x 30---25Pcs
M3 x 35---25Pcs
M3 x 40---25Pcs
M3 x 45---25Pcs
M3 x 50---25Pcs
M3 Nuts---500 Pcs
Φ3 Washers--500 Pcs
Hex Key------1 Pcs
Total: 1501 Pcs

[ About Internal Hex drives ]
Internal Hex drives, also known as Hex Socket Drives, have a hexagonal hole in the center that requires an Allen key, also known as a hex key or Allen Wrench
[ About Socket Cap Head ]
Socket Cap Head , also known as Allen head, 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