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header-product Thread adapter BIG 3/8" to 1/4" model 428277
9.99 €

Thread adapter BIG 3/8" to 1/4" model 428277

Thread adapter BIG 3/8"-1/4" model 428277 Photo 1
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Short description

Thread adapter BIG model 428277 converts a 3/8" threaded connection to a 1/4" threaded connection. Manufactured by BIG, this adapter allows compatibility between tools, hoses or fittings with differing thread sizes. Suitable for workshop, pneumatic and hydraulic setups where a secure, standard-thread transition is required. Compact metal design for straightforward installation.
Available for order: 5 pcs.
Warranty: 2 Years
SKU: 1945067
free shipment

Cheapest delivery:

Venipak Pickup LV, Venipak Locker LV

Pick-up points

Venipak Pickup LV

Venipak Locker LV

Cost

1.89 €

Deliver

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Customer service center
2b. Kengaraga str., Riga, Latvia, LV-1063
07.07.2026 {{selectedOffer.officeDeliveryString}}
free
Courier Delivery Please note that in case of a large parcel additional delivery costs may apply!
10.07.2026 {{selectedOffer.courierDeliveryString}}
From 4.99 €
Parcel couriers
Venipak Pickup LV / Venipak Locker LV / Latvijas Pasts pakomāts / Unisend LV / DPD Paku skapis / Omniva LV / Latvijas Pasts nodaļa
10.07.2026 {{selectedOffer.parcelStationDeliveryString}}
From 1.89 €
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Payment Methods:
Bank transfer, Bank cards on-line, Apple Pay, Google Pay
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Product information

Description

BIG thread adapter model 428277 converts a 3/8" male/female threaded connection to a 1/4" thread, enabling compatibility between tools, hoses or fittings with differing standard thread sizes. Manufactured from brass with a compact metal design, the adapter is intended for workshop, pneumatic and hydraulic installations where a secure threaded transition is required.

Advantages

The brass construction provides corrosion resistance and reliable mechanical strength. The adapter allows a direct, standardised connection between 3/8" and 1/4" threads without requiring additional components. Its compact size ensures easy installation in confined spaces and straightforward replacement or reconfiguration of equipment.

Suitable for

  • Workshop tools and fittings
  • Pneumatic systems and air hoses
  • Hydraulic lines with matching pressure ratings
  • Adapters and converters in maintenance and repair tasks

Key specifications

  • Brand: BIG
  • Model: 428277
  • MPN: 428277
  • EAN: 4501914282774
  • Material: Brass
  • Input thread: 3/8"
  • Output thread: 1/4"

How to use

Ensure mating threads are clean and undamaged before installation. Screw the adapter into the 3/8" threaded port until hand-tight, then finish with an appropriate wrench if required—avoid over-tightening to prevent thread damage. Attach the 1/4" fitting or hose to the opposite end and confirm a secure, leak-free connection before pressurising the system.

Usage recommendations

Verify that thread types and pressure specifications of connected components are compatible; if in doubt, consult equipment documentation. Use thread sealant or tape only if appropriate for the application and compatible with brass. Regularly inspect the adapter for wear or corrosion in routine maintenance.

Description

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Customer reviews

Customer questions

FAQ

How much does the Thread adapter BIG 3/8"-1/4" model 428277 cost, and is it available for purchase?

The price is 9.99 € (valid at the time of publication and already includes all taxes). The item is available for order — 5 pcs. are in stock, and you can place your purchase right now with delivery across Latvia and Europe or choose pickup at the Riga collection point. We offer favorable purchase terms, including the option to split the payment into convenient monthly installments. Availability and price are updated in real time, so we recommend placing your order in advance.

If I order this product today, when will I receive my order?

If you place your order today, delivery will be as fast and convenient as possible. You will be able to pick up your order on 07.07.2026 at the Riga pickup point or choose delivery across Latvia and Europe. We carefully inspect every purchase and pack it securely for safe transportation.

What payment options are available?

AiO.lv offers several payment methods: Bank transfer, Bank cards on-line, Apple Pay, Google Pay. All transactions are 100% secure and encrypted.

Can this product be purchased for a company (with VAT)?

Yes. AiO.lv works with legal entities in Latvia and across Europe. The product price already includes VAT. For certain product categories, as well as for companies from other EU countries with a valid VAT number, a 0% VAT rate may apply. We issue the invoice immediately after the order is placed, support electronic BIS invoices, and automatically generate all necessary accounting documents. You can complete the purchase for a company online — simply select the company profile and choose bank transfer as the payment method during checkout.

What is the warranty period?

All BIG products come with an official 2 Years warranty. It covers all manufacturing defects and malfunctions that may occur during use. The warranty is valid at all authorized BIG service centers and through AiO.lv

Can the product be returned after purchase?

Yes, you can return the product within 14 days of purchase if you bought it as a consumer (not a legal entity). Returns are possible without giving any reason — the main condition is that the product retains its original appearance and full set of accessories. We will make the process as simple and convenient as possible: just contact our customer support team, and we will help you arrange the return.

Where should I contact for warranty service?

For warranty-related questions you can contact the AiO.lv (SIA VSPRO) customer support team. We will assist with consultation, warranty claim processing, and coordination with certified service centers.
warranty
14-Day Return Policy We are confident in our quality, but if the purchase doesn’t fit — you have 14 days to return the product with peace of mind.
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Fast Delivery Get your orders as quickly as possible — right to your door, parcel lockers, or pickup points across Latvia and the EU.
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Secure Payment Pay the way you prefer: cash, VISA, MasterCard, Apple Pay, Google Pay, bank transfer, or 0% installment plan.
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Quality Since 2008 AiO.lv has been on the market for over 18 years and has earned trust — with more than 6000 genuine positive reviews on Google.