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Security Fasteners and General Fixings from Stock and to order

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2-Hole Pan Head Security Barrel Nuts

2-Hole Pan Head Security Barrel Nuts are a reusable two-way security fastener, typically used for clamping material together when combined with a machine threaded bolt or screw.

Designed for low to medium torque applications, these tamper-proof screws feature a pan head and 2-Hole Security Drive for moderate security resistance – fastened using a special 2-Hole Insert Bit.

These insert bits are manufactured to match the screws as the distance between the holes can differ, preventing removal without the correct sized tool. They are prone to bending or breaking so it is advised to order additional tools as a precaution.

2-Hole Pan Head Security Barrel Nuts are used in a range of applications and assemblies – often for architectural stair casing and balustrading.

Manufactured from A2 Stainless Steel, A4 Stainless Steel and Brass as standard, with other materials and finishes available on request including Aluminium and Titanium.

Available now in thread sizes M5 to M12 as standard, with bespoke sizes also available to order. 2-Hole Pan Head Security Barrel Nuts and Sex Bolt Sets are also available at Fastenright.

We supply various Security Barrel Nuts and 2-Hole Security Fasteners in a wide range of sizes, materials and finishes to meet your requirements.

Non-standard sizes, materials and finishes are available to order as specials, including small volume manufacture, modifications and bespoke parts made to drawings. Minimum order quantities apply.
2-Hole Pan Head Barrel Nuts Technical Drawing

Technical Data & Availability
Thread Diameter (d) M5 M6 M8 M8 M10 M12
dk (mm) 20 20 20 25 25 25
d1 (mm) 8 8 12 12 14 16
k (mm) 5 5 5 8 5 7 7
Available Lengths (L) M5 M6 M8 M8 M10 M12
6mm black icon image black icon image
7mm black icon imageyellow icon image black icon image
10mm yellow icon image black icon image black icon image
black icon image = Stainless Steel // yellow icon image= Brass (Plain or Nickel Plated)
Size not listed? Please contact us – we may be able to provide it.

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