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Low Profile Socket Barrel Nuts

SKU: SB004 Category: Tag:

Socket Barrel Nuts with a low profile head are ideal for use in architectural applications that require two or more pieces of material to be clamped together whilst also leaving an aesthetic finish. This is particularly useful for applications where a flat countersunk head is required but the material is too thin to countersink.

These barrel nuts can be referred to as sleeve nuts.

  • Smooth, thin head – no need to countersink holes to achieve a low profile finish
  • Ideal for architectural applications
  • Male screw fastens into internally threaded female barrel nut (sex bolt)
  • Standard socket drive
  • Closed end
  • A4 Stainless Steel as standard for superior corrosion resistance

These sleeve nuts are suitable for use with any machine screw with the same thread.

Low Profile barrel nuts are available as standard in A4 Stainless Steel, which makes them ideal for applications that require protection from salt water corrosion, however they can be used in any application that requires Stainless Steel.

They are available from Fastenright as standard in threads from M5 to M8 and lengths of 30mm and 35mm.

Non-standard sizes and materials are available to order as specials, including custom parts made to drawings.


Low Profile Socket Barrel Nuts technical drawing


Metric Technical Information & Available Sizes
Thread Diameter M5 M6 M8
D (mm) 10.0 12.0 16.0
D1 (mm) 7.0 8.0 10.0
L (mm) 32.0 32.0 37.0
L1 (mm) 30.0 30.0 35.0
L2 (mm) 20.0 20.0 25.0
Tool Size 4mm A/F 5mm A/F 6mm A/F
Available Sizes M5 M6 M8
black icon image = A4 Stainless Steel
Size not listed? Please make an enquiry – we may be able to provide it.

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