• Black Hex Socket Countersunk Bolts | DIN 7991 / ISO 10642 Flat Head Allen Screws | High Tensile Rustproof Carbon Steel Fasteners - DIYUK
  • Black Hex Socket Countersunk Bolts | DIN 7991 / ISO 10642 Flat Head Allen Screws | High Tensile Rustproof Carbon Steel Fasteners - DIYUK
  • Black Hex Socket Countersunk Bolts | DIN 7991 / ISO 10642 Flat Head Allen Screws | High Tensile Rustproof Carbon Steel Fasteners - DIYUK
  • Black Hex Socket Countersunk Bolts | DIN 7991 / ISO 10642 Flat Head Allen Screws | High Tensile Rustproof Carbon Steel Fasteners - DIYUK
  • Black Hex Socket Countersunk Bolts | DIN 7991 / ISO 10642 Flat Head Allen Screws | High Tensile Rustproof Carbon Steel Fasteners - DIYUK
  • Black Oxide Hex Socket Countersunk Bolt DIN 7991 Flat Head Screw M6 M8
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DIYUK

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Black Hex Socket Countersunk Bolts

Black Hex Socket Countersunk Bolts

£6.59 GBP
£6.59 GBP
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Taxes included. Shipping calculated at checkout.

Upgrade Your Fasteners with Professional Grade Black Oxide Bolts

Designed for precision and durability, our Hex Socket Countersunk Bolts are the go-to choice for professionals, makers, and DIY enthusiasts. Whether you are repairing IKEA-style furniture, building a 3D printer rig, or securing automotive trim, these screws provide a secure hold with a stealthy, flush finish.

Technical Specifications:

  • Material: High Tensile Carbon Steel (Grade 10.9)
  • Finish: Black Oxide (Corrosion Resistant)
  • Standard: DIN 7991 / ISO 10642
  • Drive Type: Hex Socket (Allen Key)
  • Head Style: Flat / Countersunk (90°)

⚠️ IMPORTANT SIZING NOTE:

Unlike standard cap head screws, Countersunk screws are measured by their TOTAL length, including the head. Please measure from the top of the flat head to the very tip of the screw to ensure the correct fit.

Available Sizes & Common Uses:

  • M4: Electronics, Small Hinges, 3D Printed Parts
  • M5: VESA Mounts, Cabinetry, Automotive Interiors
  • M6: Furniture Assembly (Cribs/Chairs), Machinery, Bikes
  • M8: TV Wall Mounts, Heavy Joinery, Structural Projects

Pack Sizes Available:

2 Pack (Sample), 10 Pack (Small Project), 50 Pack (Trade), 100 Pack (Bulk).

 

  • COMPLETE METRIC RANGE: High-precision machine screws available in M4 (8mm, 12mm), M5 (10mm, 20mm), M6 (16mm, 30mm), and M8 (20mm, 25mm, 30mm, 35mm). Select your exact size and pack quantity from the menu.
  • FLUSH FINISH (DIN 7991): Manufactured to strict DIN 7991 / ISO 10642 standards. The 90-degree conical head sits flush with the material surface, creating a smooth, snag-free finish ideal for moving machinery parts and furniture assembly.
  • BLACK OXIDE PROTECTION: Treated with a premium black oxide coating that offers moderate rust and corrosion resistance in dry environments while providing a sleek, professional matte black look for automotive and industrial builds.
  • RELIABLE TORQUE: Features a deep, precision-formed Hexagon (Allen) Socket drive that resists cam-out, allowing for high-torque tightening with standard hex keys.

• • FLEXIBLE QUANTITIES: Whether you need a 2-pack for a quick repair or a 100-pack for a workshop project, we offer packs of 2, 10, 50, and 100 to suit every need. Ideal for 3D printing, RC hobbies, joinery, and equipment mounting.

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