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Power Tools Direct£1.42Visit shop Sealey Sn4 Steel Nut Din 934 - M4 - Pack Of 100
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B&Q£5.73Visit shop B&Q - Steel Nut M4 Zinc Din 934 Pack Of 100 Pieces Metric Hex With Bag Sn4
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The Sealey SN4 M4 hex nut is a standard metric fastener designed for mechanics, hobbyists, and DIY enthusiasts who require reliable hardware for fastening components. Engineered to DIN 934 standards, this product offers excellent versatility for general assembly tasks; however, it is specifically designed for M4 threads and is not suitable for high-torque structural applications where specialized hardened steel might be required.
| Colour | Silver |
|---|---|
| Model Part Number | SN4 |
| Brand | Sealey |
The SN4 has a standard metric thread pitch of 0.7mm.
No, these are zinc-plated steel nuts, not stainless steel.
Each pack contains 100 individual M4 hex nuts.
Yes, they are manufactured to meet DIN 934 standards.
These are designed for general fastening and are not rated for high-torque or critical structural load-bearing applications.
M4 DIN 934 nuts typically require a 7mm spanner or socket.
Verify that the bolt is an M4 size and check for damaged threads on the bolt; do not force the nut if resistance is felt.
While zinc-plated, exposure to corrosive chemicals or salt spray can cause oxidation; clean the surface and apply a light protective oil or spray.
Ensure the bolt is tightened to the correct torque; if vibration is significant, apply a medium-strength thread locker to the threads.
For optimal performance, ensure you are using an M4 bolt with a matching 0.7mm pitch. When tightening, use a standard 7mm spanner or a deep-well socket to avoid rounding the corners of the hex head. Because the nuts are zinc-plated, avoid using harsh abrasive cleaners or acidic solvents that could strip the protective layer. If the nuts are used in high-vibration environments, consider using a thread-locking fluid to ensure they do not back off over time. Store the nuts in their original resealable bag in a dry environment to prevent premature surface dulling or oxidation.
