Bremick UNC Hex Nut, 1 1/2"

A hex nut is the standard six-sided nut. It is turned with a spanner or socket onto a bolt, stud or threaded rod of the same thread form, diameter and pitch. There are 9 Bremick UNC hex nut items (UNC thread, Grade 8, high tensile steel, plain finish): 7/16" to 1-1/2".

UNC is Unified National Coarse Thread, and TPI is threads per inch. Threads per inch are shown for each size. Grade is the imperial strength level of a screw or nut, for example Grade 2, Grade 5 or Grade 8. On the Bremick class vs grade chart, Grade 8 is high tensile, alongside metric Class 10.9. Spanner sizes (A/F) come. The pack or box quantity for each item is shown in the table.

Where this product is used

• Machinery mounting and frame assembly using studs
• Locking up bolted flanges and brackets, with a washer under the nut
• Use in pairs on threaded rod or studs, tightened against each other, to help resist loosening
• Workshop jobs where the part is protected by its surroundings
• Heavy-duty assemblies and machine building where a high-strength fastener is wanted
• Choosing between the 9 items here: they cover diameters from 7/16" to 1-1/2"

Features

• 9 items: 7/16" to 1-1/2"
• UNC thread, hex nut
• Grade 8, high tensile steel, plain finish
• Pack quantity shown for each item
• Spanner size (A/F)
• AS 2465 named for the items the stock list covers
• Uncoated plain steel: paint, oil or enclose it for protection
• Heavy-duty Grade 8 alloy steel

Key specifications

Choosing the finish

Plain (uncoated) steel has no corrosion protection beyond a light oil film, and it rusts quickly once moisture reaches it.

Keep plain parts for dry indoor use, machinery and assemblies that get painted, oiled or enclosed. Outdoors or in damp areas, a hot dip galvanised or 316 stainless alternative is the better choice.

What the grade means

Grade 8 is the heavy-duty alloy steel grade in the SAE convention.

UNC is the coarse inch thread, the general-purpose choice; it only mates with UNC nuts and tapped holes of the same diameter.

Fasteners are not lifting rated unless marked.

Choosing the right option

Match the nut to the bolt, stud or rod: thread form, diameter and pitch must all agree. Sizes are nominal thread diameters in inches. Compare the threads per inch with your bolt. Where a spanner size is shown, it is.

See also: Bremick UNC Hex Nut, Grade 5, Plain, 3/8", Box of 50, Bremick UNC Hex Nut, Grade 8, High Tensile Steel, Zinc, 1/2" to 3/4", Bremick UNC Hex Nut, Grade 5, High Tensile Steel, Zinc, 1/4" to 3/8".