Item # GR8HIN11/2–12PL
1 1/2" - 12 NF GR8 HIGH NUTS, PLAIN
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Item # GR8HIN11/2–12PL
1 1/2" - 12 NF GR8 HIGH NUTS, PLAIN
- UM: EA
The 1 1/2-12 Grade 8 high nut is a unf-thread high nut in a plain finish stocked at Eugene Fastener & Supply. Part of our full hi nuts selection.
At a glance
| Wrench size (across flats) | 2-1/4" |
| Thread | 1 1/2-12 UNF (Fine) |
| Grade | Grade 8 |
| Material | Steel |
| Finish | Plain |
Good to know
- Use with Grade 8 bolts/studs — match or exceed the bolt grade so the nut is never the weak link.
- Fine (UNF) thread — higher tensile strength and better resistance to loosening than coarse.
- Roughly 30–45% thicker than a heavy hex nut of the same size, so more threads engage to develop a high-grade stud's full strength and protect thread ends. Made to SAE J482 dimensions with SAE J995 mechanical properties — common on truck and automotive suspension, tie-rods, all-thread, and leveling screws.
- Plain finish has no corrosion coating — oil, wax, or paint for outdoor or wet service, or ask us about a plated option.
Other sizes in this series — Grade 8 High Nuts
| Size | Part # | Wrench |
|---|---|---|
| 3/8-24 | 00235-2600-400 | 9/16" |
| 7/16-20 | 00235-2700-020 | 11/16" |
| 1/2-20 | 00235-2800-020 | 3/4" |
| 9/16-18 | 00235-2900-020 | 7/8" |
| 5/8-18 | 00235-3000-020 | 15/16" |
| 3/4-16 | 00235-3200-020 | 1-1/8" |
| 7/8-14 | 00235-3400-020 | 1-1/4" |
| 1-14 | 00235-4000-020 | 1-7/16" |
| 1 1/8-12 | 00235-4100-020 | 1-11/16" |
| 1 1/4-12 | 00235-4200-020 | 1-13/16" |
| 1 1/2-12 (this page) | GR8HIN11/2–12PL | 2-1/4" |
Learn more in our Hex High Nut Guide — grades, dimensions, and where high nuts are used.
Need a different material, finish, or thread, or bulk pricing? Contact our sales team, or view all hi nuts. Eugene Fastener & Supply, since 1969.
Specifications
| Diameter | 1 1/2 |
| Thread pitch | 12 |
| Material | Steel |
| Finish | Plain |
| Grade | UNF (Fine) |
| Part Number | Hi Nuts |
| Thread | UNF |
| Grade 8 |
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