Imperial BSW Fullnut Self Colour
Imperial BSW Fullnut Self Colour - 3/16" is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at Bridgwater, Somerset
Imperial BSW Fullnut Self Colour - 3/16" is backordered and will ship as soon as it is back in stock.
Description
Description
When working with imperial machinery, vintage equipment, or specific structural frameworks, achieving a precise and reliable connection depends heavily on using the correct fastener profile. The Imperial BSW Fullnut Self Colour is specifically manufactured to meet the rigorous demands of classic British Standard Whitworth (BSW) threading specifications, ensuring seamless compatibility and mechanical integrity across your projects.
Unlike standard metric or UNC fasteners, BSW threads utilize a distinct 55-degree thread angle and rounded crests and roots. Pairing BSW male components with a true BSW fullnut eliminates the risk of cross-threading, thread stripping, or loose tolerances. The fullnut geometry provides substantial thickness, maximizing the surface contact area between the internal and external threads. This extended thread engagement allows for higher torque limits and ensures that clamping force is evenly distributed throughout the joint, significantly reducing the likelihood of joint failure under operational stress.
The "self colour" finish refers to the fastener’s natural, untreated steel state. Free from standard zinc plating or hot-dip galvanizing, self-colour fasteners offer distinct advantages in specialized fabrication environments. Because there is no protective surface coating to burn off or contaminate a joint, these nuts can be directly welded to steel assemblies without requiring pre-sanding or chemical stripping. Additionally, a self-colour finish provides an ideal base for custom industrial coatings, specialized paints, or high-temperature bluing.
Whether you are performing maintenance on heritage agricultural equipment, restoring classic automotive componentry, or fabricating custom steel assemblies, the Imperial BSW Fullnut Self Colour delivers the exact dimensional accuracy and structural strength required. To prevent corrosion in outdoor or exposed environments, it is recommended to apply an appropriate grease, oil film, or post-assembly protective coating after installation.
Specifications
Specifications
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Material
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Colour
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What's in the box?
What's in the box?
Frequently Asked Questions
What does "self colour" mean for this BSW fullnut?
What does "self colour" mean for this BSW fullnut?
"Self colour" means the nut is supplied in its natural steel finish without any electroplating, galvanizing, or surface treatment applied.
Can I use a BSW fullnut on UNC or Metric threaded bolts?
Can I use a BSW fullnut on UNC or Metric threaded bolts?
No. BSW threads have a specific 55-degree thread angle and pitch pattern that is distinct from UNC (60-degree angle) and Metric threads. They must only be paired with matching BSW male threads to prevent damaging the hardware.
How should I protect self colour fasteners from rust?
How should I protect self colour fasteners from rust?
Because they lack a protective finish, self colour nuts should be lubricated with oil or grease, painted after assembly, or kept in dry indoor environments to prevent surface oxidation.
Shipping
What countries do you ship to?
What countries do you ship to?
We currently only ship to the UK. To enquire about shipping to a different destination, please contact us.
How long will it take to receive my order?
How long will it take to receive my order?
Shipping normally takes 1 - 2 days. Orders placed before 2:00pm will be shipped same day. Orders placed after 2:00pm on Fridays will be shipped the following Monday.
