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Imperial Nuts & Bolts

Our range of Imperial Nuts and Bolts is shown below. Manufactured to United States standards with Unified Coarse Pitch and Unified Fine Pitch available. All items measured in Imperial sizes (Inch). Our Imperial Nuts and Bolts come in A2 and A4 grade of stainless steel and also Bright ZInc Plated options.
Material Key
A2
A2 Stainless Steel - also known as grade 304 or 18/8. A general purpose grade of stainless steel.
A4
A4 Stainless Steel - also known as grade 316 or 18/8/3. A higher corrosion resistant, marine grade of stainless steel.
BZP
Bright Zinc Plated (BZP) Steel - non-stainless standard steel grade offering a basic level of corrosion resistance.
BZP-G5
Bright Zinc Plated (BZP) USA grade 5 high tensile steel - equivalent to UK class 8, a general purpose non-stainless grade with a basic level of corrosion resistance.
BZP-TH
Through (Thru) Hardened Bright Zinc Plated Steel - carburised or through hardened washer in Bright Zinc Plate finish that has been treated to improve strength
MZP
Mechanically Plated Zinc Steel - mechanically plated to help prevent hydrogen embrittlement

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