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HomeFasteners & AnchorsNutsGrade 8 UNF Hex Nut G8 UNF

Grade 8 UNF Hex Nut G8 UNF

Grade 8 UNF Hex Nut G8 UNF in carbon steel, Grade 8, inch thread. 16 sizes available; sold per unit.

Price from
$ 52
Material
acero al carbono
Grade
Grado 8
Sizes
16
Grade 8 UNF Hex Nut G8 UNF
In stock acero al carbono Grado 8 pulgadas
Price from
$ 52 COP each
+ 19% VAT · per unit

01Sizes, prices and availability

SKUSizePriceStatusQty
VT-37034 1/4 $ 52 In stock
VT-37035 5/16 $ 98 In stock
VT-37036 3/8 $ 139 In stock
VT-37037 7/16 $ 251 In stock
VT-37038 1/2 $ 338 In stock
VT-37039 9/16 $ 514 In stock
VT-37040 5/8 $ 668 In stock
VT-37041 3/4 $ 1.069 In stock
VT-37042 7/8 $ 1.898 In stock
VT-37043 1" $ 2.616 In stock
VT-37044 1.1/8 $ 5.676 In stock
VT-37045 1.1/4 $ 6.439 In stock
VT-37046 1.3/8 $ 7.630 In stock
VT-37047 1.1/2 $ 9.722 In stock
VT-37048 1.3/4 $ 15.252 In stock
VT-37049 2 $ 26.314 In stock

Prices per unit, before VAT. Availability is confirmed in the formal quote.

Can't find your reference? Need another size, grade or finish of this fastener? We carry over 12,000 references — we quote it via WhatsApp. Quote via WhatsApp

02Specifications

Materialacero al carbono
Grade / StandardGrado 8
Thread systempulgadas
FamilyNuts

03Technical description

The Grade 8 UNF Hex Nut is an industrial nut for machinery, heavy automotive, industrial equipment and replacement of fine-pitch fasteners. It is made from grade 8 carbon steel and works with UNF thread; where applicable, the reference is related to SAE J995 grade 8. Its main difference is grade 8 in fine UNF thread for high-demand SAE assemblies. To buy without errors, the critical data is not only the diameter: the pitch, thread series and grade or material of the bolt, stud or threaded rod must also match. TECTUL offers it per unit and organizes selection by actual catalog sizes for maintenance, replacement and production purchases.

Available sizes according to catalog data
1"1.1/21.1/41.1/81.3/41.3/81/21/4
23/43/85/165/87/167/89/16

Installation recommendations

  • Verify diameter, pitch and thread series before installation.
  • Use the correct wrench size to avoid rounding the flats.
  • Where vibration is present, add a washer, threadlocker or lock nut according to the design.
  • Do not mix classes or grades without validating bolt compatibility.

To quote the grade 8 unf hex nut, send the exact size, quantity and whether you need equivalence with a bolt, stud or threaded rod. We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp with TECTUL to confirm availability, finish and delivery times.

04Frequently asked questions

What is the price of the grade 8 unf hex nut?

The price depends on size, finish and quantity. TECTUL quotes this reference per unit and can validate availability before dispatch.

How is it different from the Grade 8 UNC hex nut?

Both are grade 8; UNF is fine pitch and UNC is coarse pitch. Compatibility is defined by the male thread.

How is the grade 8 unf hex nut installed?

Clean the thread, confirm diameter and pitch, start threading by hand and tighten with the proper tool according to the torque defined for the assembly.

How do I choose the correct size?

Take the nominal diameter and pitch of the male thread. In inch threads, distinguish UNC from UNF; in metric, confirm the pitch indicated in millimeters.

Is it suitable for outdoor use?

It depends on the material and coating. Stainless steel and hot-dip galvanized finishes better resist exposure; zinc plated, black or black oxide finishes are recommended for protected environments.

Is it sold per unit or by package?

The lot is configured per unit. For maintenance or production consumption, TECTUL can quote quantities by size.

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Updated: July 22, 2026