Bremick BSW Hex Nut, 3/4"

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 2 Bremick BSW hex nut items (BSW thread, Grade 2, mild steel, plain finish): 3/4" and 7/8".

BSW is British Thread Standard Whitworth, 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 2 is low tensile, alongside metric Class 4.6. The pack or box quantity for each item is shown in the table. It changes with the size.

Where this product is used

• Securing bolted joints in fabrication, maintenance and repair
• 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
• General-purpose jobs where strength is not the deciding factor
• Choosing between the 2 items here: they cover diameters from 3/4" to 7/8"

Features

• 2 items: 3/4" and 7/8"
• BSW thread, hex nut
• Grade 2, mild steel, plain finish
• Pack quantity shown for each item
• Plain finish: suited to dry indoor, oiled, painted or enclosed use
• General-purpose Grade 2 steel

Key specifications

Choosing the finish

Plain steel carries no protective coating apart from a light oil film, which is why it rusts quickly if it gets wet.

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 2 is general-purpose, low-carbon imperial steel (SAE convention).

BSW is British Standard Whitworth, an imperial thread with a 55° form that is found on older British-origin machinery. It only mates with BSW parts 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.

See also: Bremick UNC Hex Nut, Grade 5, Plain, 3/8", Box of 50, Bremick UNC Hex Nut, Grade 8, High Tensile Steel, Plain, 7/16" to 1-1/2", Bremick UNF Hex Nut, Grade 8, High Tensile Steel, Plain, 7/16" to 7/8".