Allen Bolt M4x16mm, Dia. 4mm, Length 16mm Socket Head Cap Screws
Allen Bolt M4 x 16mm – Socket Head Cap Screw
Thread Diameter: 4mm (M4)
Length: 16mm (measured from under the head)
Head Type: Socket Head Cap Screw
Allen Key Size: 3mm
Material: Mild Steel
Finish: Black Oxide Coating
Description:
The Allen Bolt M4 x 16mm is a precision-engineered fastener ideal for compact and high-strength mechanical assemblies. Manufactured from durable mild steel and coated with black oxide for corrosion resistance, this socket head cap screw is widely used in machinery, automation, fixtures, and electronics. Its 3mm Allen key compatibility ensures easy installation with a secure fit in tight spaces.
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Dia. |
M2 |
M2.5 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
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Key |
1.5 mm |
2 mm |
2.5 mm |
3 mm |
4 mm |
5 mm |
6 mm |
8 mm |
10 mm |
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Socket Countersunk Screws(CSK Bolts) |
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Dia. |
M2 |
M2.5 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
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Key |
|
|
2 mm |
2.5 mm |
3 mm |
4 mm |
5 mm |
6 mm |
8 mm |
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Socket Button Head Screws(Botton Bolts) |
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|
Dia. |
M2 |
M2.5 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
|
Key |
|
|
2 mm |
2.5 mm |
3 mm |
4 mm |
5 mm |
6 mm |
8 mm |
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Socket Set Screws(Grub Bolts) |
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|
Dia. |
M2 |
M2.5 |
M3 |
M4 |
M5 |
M6 |
M8 |
M10 |
M12 |
|
Key |
|
|
1.5 mm |
2 mm |
2.5 mm |
3 mm |
4 mm |
5 mm |
6 mm |
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Socket Head Cap Screws(Allen Bolts)


