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HomeFasteners & AnchorsNuts304-A2 Stainless Steel UNF Lock Nut 304-18.8 Stainless Steel UNF

304-A2 Stainless Steel UNF Lock Nut 304-18.8 Stainless Steel UNF

304-A2 Stainless Steel UNF Lock Nut 304-18.8 Stainless Steel UNF in stainless steel, inch thread. 9 sizes available; sold per unit.

Price from
$ 308
Material
acero inoxidable
Finish
Sizes
9
304-A2 Stainless Steel UNF Lock Nut 304-18.8 Stainless Steel UNF
In stock acero inoxidable pulgadas
Price from
$ 308 COP each
+ 19% VAT · per unit

01Sizes, prices and availability

SKUSizePriceStatusQty
VT-39399 3/16 $ 308 In stock
VT-39400 1/4 $ 458 In stock
VT-39401 5/16 $ 810 In stock
VT-39402 3/8 $ 1.395 In stock
VT-39403 7/16 $ 1.690 In stock
VT-39404 1/2 $ 3.696 In stock
VT-39405 5/8 $ 6.295 In stock
VT-39406 3/4 $ 14.422 In stock
VT-39407 7/8 $ 33.199 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 inoxidable
Thread systempulgadas
FamilyNuts

03Technical description

The 304-A2 stainless steel UNF lock nut is a fastener for assemblies with moderate vibration, stainless equipment, guards, supports and machinery using fine inch thread. At TECTUL it is specified by material, thread system and actual available size, because in industrial nuts compatibility depends on diameter as well as pitch and bearing type. For this product, the reference works with UNF thread and the concept of a prevailing-torque nut with non-metallic insert used in DIN 985 and equivalent ISO families. It differs from the UNC version by the fine pitch, and from a common hex nut because it adds resistance to loosening from vibration. It is a useful option for maintenance, manufacturing and replacement purchases when the correct part must be identified without mixing similar catalog families.

Available size / pitchSales unit
1/2unit
1/4unit
3/16unit
3/4unit
3/8unit
5/16unit
5/8unit
7/16unit
7/8unit

Installation recommendations

  • Confirm diameter, pitch and thread system before forcing the assembly.
  • Use a bolt or stud with material and strength compatible with the nut.
  • Clean the thread and discard parts with dents, burrs or visible deformation.
  • Apply the torque or procedure defined by equipment engineering, not by visual estimate.

We dispatch to Bogotá, Medellín, Cali, Barranquilla and all of Colombia. Request a quote via WhatsApp for this 304-A2 stainless steel UNF lock nut with size, quantity and application to confirm availability and a compatible alternative.

04Frequently asked questions

What is the price of the 304 stainless steel unf lock nut?

The price depends on size, quantity and availability. TECTUL quotes per unit and can validate equivalent alternatives if you share the application.

How is it different from the closest sister reference?

It differs from the UNC version by the fine pitch, and from a common hex nut because it adds resistance to loosening from vibration.

How is this 304-A2 stainless steel UNF lock nut installed correctly?

Verify diameter and pitch, thread it without cross-threading and tighten with the procedure defined for the equipment or joint.

What information should I send to quote?

Send diameter, pitch, required material, quantity and a photo or bolt reference when there is doubt between UNC, UNF or metric.

Is it sold per unit?

Yes. In this lot it appears as sold per unit, with the available sizes shown in the technical table.

Do you dispatch outside Bogotá?

Yes. TECTUL dispatches to Bogotá, Medellín, Cali, Barranquilla and other cities in Colombia according to logistics availability.

05Related products

Updated: July 22, 2026