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The BigHead Female Hex Nuts F1/B20 & F1/S20 are manufactured in the United Kingdom and adhere to international regulations for industrial products.

These bonding fasteners can be attached via adhesives or via welding or manufacturing methods and the flat perforated head means the product will securely fasten into its required location.

The material is mild steel and ranging from thread sizes M4 to M8, so just find the correct fit for you.

If your construction, marine or automobile needs match these products, then the F1/B20 & F1/S20 are the fasteners for you.

BigHead Female Hex Nuts F1/B20 & F1/S20

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