Mechanical Zinc Plated Steel UNF Bolts

Our range of UNF Bolts are listed below. A full range of American (Imperial) specification stainless steel/hardened steel variants in A2 (304), A4 (316) grades and Zinc Plated hardened steel. Available in UNF and UNC forms. Always take care to ensure you have the correct size combinations as its easy to get thread types and pitches confused meaning incompatibility issues and disappointment when your order arrives.

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UNF Nuts

Imperial Washers

Imperial Grub Screws

Fastener 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 ISO class 8, a general purpose high tensile grade with a basic level of corrosion resistance.
MZP	Mechanically Plated Zinc Steel - Mechanically applied zinc plating, useful to help prevent hydrogen embrittlement.

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UNF Socket Head Button Screws ASME B18. 3-2003 in Mechanically Plated Zinc Steel

UNF Socket Head Button Screws ASME B18. 3-2003 in Mechanically Plated Zinc Steel

A popular and attractive socket head screw, typically used where aesthetics are important, or where a lower profile domed finish is required. The hex drive is generally smaller than other hex driven ranges and thus the ultimate tightening torque is reduced. Manufactured to ASME/ANSI B18.3, and always fully threaded.

MZP

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