5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) 5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) (pack of 1)

Accu Product Code (APC): HPN-5/8-18-A4

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5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) 5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) (pack of 1)

Accu Product Code (APC): HPN-5/8-18-A4

Key Features

5/8-18 UNF Imperial Thread Size
3 Year Extended Warranty.
A4-70 cold-worked Stainless Steel., also known as marine grade or 316 Stainless Steel.

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Accu Product Code (APC): HPN-5/8-18-A4
Thread Size: 5/8-18 UNF
Socket Size (J): 0.938 inch Tolerance: +0/-0.16 inch
Nut Thickness (T): 0.559 inch Tolerance: +0/-0.024 inch
Material: Stainless Steel - Marine (A4)
Finish: Natural
Manufacturing Standard: ASME B18.2.2
Material Family: Stainless Steel
Nut Width Across Points (P): 1.083 inch
System of Measurement: Imperial
Thread Pitch: 18 TPI
Weight per 100 Units: 3.14 kg

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5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) Description

The 5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) has the following features:

Natural Finish
Manufacturing Standard: ASME B18.2.2
Stainless Steel - Marine (A4)
Stainless Steel Material Family
Nut Thickness (T): 0.559 inch
Nut Thickness (T) Tolerance: +0/-0.024 inch
Nut Width Across Points (P): 1.083 inch
Socket Size (J): 0.938 inch
Socket Size (J) Tolerance: +0/-0.16 inch
System of Measurement: Imperial
Thread Pitch: 18 TPI
Thread Size: 5/8-18 UNF

Discover more about the Imperial Hexagon Nuts range.

Hexagon Nuts are designed to be used with Machine Screws or Bolts to securely fasten two or more components together. This is achieved through a combination of friction of the threads, a slight stretching of the bolt and the compression (or clamping) of the parts being held together.

Nuts and Bolts are often used alongside a Washer, which helps to distribute the fastener load and can also be used for protection and spacing. For applications where additional space saving is required, Imperial Serrated Flanged Hexagon Nuts, a variant with an integrated washer, can be used.

Hex Nuts are also commonly known as Full Nuts and can be installed using tools such as a spanner, socket wrench or a ratchet.

Imperial Thin Hexagon Nuts are typically used for light to medium duty fastenings, having the advantage of a thinner nut length for better space saving on installation.

For heavier duty applications, Imperial Heavy Hex Nuts are recommended.

Imperial Hex Nut Materials

Components in this range can be manufactured from A2 and A4 Stainless Steel, in either natural or Matte Black finish, or from Mild Steel (Grade 4.6) with a Zinc Plated option available for added corrosion resistance.

Imperial Hexagon Nuts

Accu's Imperial Hex Nuts are available in UNC, UNF and BSW thread types, with manufacturing standards BS 57, BS 1083, BS 1768, ANSI B18.2.2 and ANSI B18.6.3 available.

Metric Hexagon Nuts

Metric Hexagon Nuts are available from Accu in thread sizes M1 up to M56, with Metric Fine Pitch Hex Nuts also available as standard.

Shipping Information

Shipping Destinations:

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Weight (100 items):

3.137kg

Component History

Product First Available:

Sunday, June 28, 2015

Stock Last Updated:

02:14 AMThursday, June 4, 2026

Specification Last Updated:

Thursday, June 4, 2026

Barcodes

APC (Accu Product Code):

HPN-5/8-18-A4

EAN13 (International Article No.):

5054328187009

ASIN (Amazon Stock Identification No.):

ASIN not defined.

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5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) 5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) (pack of 1)

5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) 5/8-18 UNF Imperial Hexagon Nuts (ASME B18.2.2) - Marine Stainless Steel (A4) (pack of 1)

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