Flat Head Screws | Black Carbon Steel | 50-200pcs M1-M4 Countersunk Bolts
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£26.99inc VAT
This bulk assortment of Phillips flat head screws provides a reliable and cost-effective fastening solution for general-purpose projects. Made from black carbon steel, these GB819 standard countersunk...
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Questions about this product
- What size Phillips screwdriver do I need for these screws?
- The required screwdriver size depends on the screw thread size you choose. For tiny M1 to M1.4 screws, you'll need a PH000 bit. Use a PH00 bit for M1.6 to M2. For M2.5 to M3, use PH0, and use PH1 for the M4 size.
- Are these black carbon steel screws suitable for outdoor use?
- These carbon steel screws are best for indoor projects. Their black coating provides only basic rust protection, so they might rust in wet environments. For outdoor applications, you should look for stainless steel fasteners instead.
- What are the head angles and thread pitches for these countersunk screws?
- These GB819 standard screws feature an 82-degree flat countersunk head to sit flush with your material. They feature standard metric coarse pitches ranging from 0.25mm for M1 up to 0.7mm for M4. Make sure to pre-drill your holes to get a clean, flush finish.
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