Hobson NP2HPF100 1" UNF Heavy Hex Nut, Grade 2H, Plain

A heavy hex nut is a larger, heavier pattern than a standard hex nut. It is turned with a spanner or socket onto a bolt, stud or threaded rod of the same thread form, diameter and pitch. This page lists 8 Hobson UNF heavy hex nuts (UNF thread, Grade 2H, plain finish): 1/2" to 1-1/2".

Hobson defines Gr as the imperial grade-strength level of a screw or nut, for example Grade 2, Grade 5 or Grade 8 (manufacturer-stated).

Hobson describes the 2H nut as a nut strength level designation (ASTM A194 Grade 2H Heavy Hex Nut) (manufacturer-stated).

The Hobson strength tables cover bolts, not nuts, so no strength figures are published for these nuts.

Hobson defines UNF as Unified National Fine Thread and TPI as threads per inch (manufacturer-stated).

Threads per inch come from the Hobson thread table, for the sizes it lists (manufacturer-stated).

Items shown as Each are single nuts; the others are supplied in the pack, box or bag quantity shown.

Where this product is used

• Fastening onto a bolt, stud or threaded rod where a heavy hex nut is called for
• Holding parts together in a bolted joint, with a washer under the nut where one is needed

Features

• 8 sizes: 1/2" to 1-1/2"
• UNF thread, heavy hex nut
• Grade 2H, plain finish
• Pack quantity shown for each item

Common specifications

Key specifications

Selecting 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. Choose the class or grade to suit the bolt you are fastening, and confirm the pairing with your specification if the joint is load-critical.

Related products

Related nuts: Hobson UNC Heavy Hex Nut, Grade 2H, Plain, 5/16" to 3-1/2", Hobson UNC Heavy Hex Nut, Grade 2H, Xylan Blue, 1/2" to 1-1/8" and Hobson UNC Heavy Hex Nut, Grade 2H, Zinc Plated, 1/2" to 1".