12.9 Hex Socket Screw Kit | DIN912 Black Carbon Steel Allen Bolts | M2-M6 Machine Screws with Nuts
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£1.99inc VAT
This premium hex socket screw kit features high-grade 12.9 carbon steel with a durable black finish for superior corrosion resistance and strength. The DIN912 standard ensures precision fit and reliab...
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Questions about this product
- What makes grade 12.9 carbon steel different from regular hardware store screws?
- Grade 12.9 is one of the strongest classes of fasteners available, offering a minimum tensile strength of 1220 MPa. These screws handle extreme mechanical stress and resist shearing much better than standard steel. The black finish adds a layer of corrosion protection for typical indoor or oiled environments.
- Do I need to buy matching washers and nuts separately for this kit?
- No, this is a complete fastening kit. It comes with matching metric nuts and flat washers for all included screw sizes from M2 through M6. You get everything needed for a full assembly in one package.
- Can I use these black carbon steel screws for outdoor or marine applications?
- These high-tensile screws are not recommended for wet or marine environments. The black finish provides light rust resistance, but carbon steel will eventually rust when exposed to constant moisture. For wet conditions, stainless steel fasteners are a safer choice, though they have lower tensile strength.
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12.9 Hex Socket Screw Kit | DIN912 Black Carbon Steel Allen Bolts | M2-M6 Machine Screws with Nuts
Price£1.99
Rating4.8
Sold1,000+
Stock In stock
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M2-M8 Hex Socket Cap Screws | Grade 12.9 Alloy Steel | 100-Piece Black DIN912 Bolts
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304 Stainless Steel Hex Socket Screws | DIN7991 Standard | M2-M10 Machine Bolts for Metal & DIY
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