Threaded fittings

Welcome to BLECHA, your leading expert for high quality aluminum threaded parts. Our extensive range of premium products spans a wide range of item groups. Here you will find an impressive variety of aluminum threaded nipples, also known as weld-on nipples or threaded nipples, threaded sockets, double nipples - pipe section with external thread on both sides - and threaded pipe elbows, all made of aluminum, a material that has a wealth of advantages.

The outstanding lightness of aluminum is one of the main advantages that characterize our aluminum threaded parts. Compared to other materials, aluminum is particularly light without sacrificing robustness. This combination makes our products perfect for applications where weight reduction is important without sacrificing stability. This lightness not only facilitates handling, but also the transport of the parts.
Aluminum's remarkable resistance to corrosion is another plus that makes our threaded parts a durable choice. Our products are extremely resistant to moisture, humidity and many chemical substances. This ensures long-lasting part durability and reliability, even under challenging environmental conditions. The natural oxide layer that forms on aluminum acts as a protective barrier against corrosion, thereby extending the life of threaded parts.
Our aluminum threaded parts are manufactured with a cylindrical Whitworth thread according to ISO 228 as standard. This widely used thread type guarantees a reliable connection. Our range includes threaded parts with external threads, such as threaded nipples and double nipples, as well as those with internal threads, such as threaded sockets and welding sockets. However, we go even further by enabling customization with specific internal and external threads according to the specific requirements of our customers.

The extraordinary accuracy of fit of our threaded parts is remarkable. They can easily be opened and closed several times without losing strength or tightness. The precise manufacture and high quality of our products ensure that a safe and reliable connection is guaranteed. No matter what stresses they are subjected to, you can rely on our aluminum threaded parts to effortlessly meet the requirements of your applications.
At BLECHA we understand that standard dimensions do not always meet all requirements. That is why we offer our customers tailor-made special products. Our experienced team is happy to assist you in developing individual threaded parts according to your specific needs. We work closely with you to find the optimal solution and to meet all requirements.
Dive into our extensive list of dimensions to discover the right aluminum threaded parts for your application. If you still can't find what you're looking for, don't hesitate to contact us. We look forward to helping you meet your threaded pipe fittings needs.

Sockets - Female thread Overall length Outside diameter EN AW-6060 T66 (AlMgSi) 1/8 inch 20 mm 15 mm 1/4 inch 25 mm 20 mm 1/4 inch extra 25 mm 25 mm 3/8 inch 30 mm 25 mm 3/8 inch extra 25 mm 30 mm 1/2 inch 35 mm 28 mm 1/2 inch extra 35 mm 35 mm 1/2 inch 50 mm 28 mm 3/4 inch 40 mm 35 mm 3/4 inch extra 30 mm 45 mm 1 inch 45 mm 40 mm 1 inch extra 35 mm 50 mm 1 1/4 inch 30 mm 50 mm 1 1/4 inch 50 mm 48 mm 1 1/4 inch extra 50 mm 60 mm 1 1/2 inch 55 mm 55 mm 2 inch 60 mm 70 mm 2 1/2 inch 70 mm 90 mm 3 inch 75 mm 100 mm 4 inch 90 mm 130 mm EN AW-5754 (AlMg3) 1 1/2 inch 60 mm 55 mm

Sockets

Female thread Overall length Outside diameter
EN AW-6060 T66 (AlMgSi)
1/8 inch 20 mm 15 mm
1/4 inch 25 mm 20 mm
1/4 inch extra 25 mm 25 mm
3/8 inch 30 mm 25 mm
3/8 inch extra 25 mm 30 mm
1/2 inch 35 mm 28 mm
1/2 inch extra 35 mm 35 mm
1/2 inch 50 mm 28 mm
3/4 inch 40 mm 35 mm
3/4 inch extra 30 mm 45 mm
1 inch 45 mm 40 mm
1 inch extra 35 mm 50 mm
1 1/4 inch 30 mm 50 mm
1 1/4 inch 50 mm 48 mm
1 1/4 inch extra 50 mm 60 mm
1 1/2 inch 55 mm 55 mm
2 inch 60 mm 70 mm
2 1/2 inch 70 mm 90 mm
3 inch 75 mm 100 mm
4 inch 90 mm 130 mm
EN AW-5754 (AlMg3)
1 1/2 inch 60 mm 55 mm
Nipples - Nipples (welding nipples, weld-on couplings, threaded couplings) Pipe section with external thread (designed according to DIN 259/ISO 228) Male thread Overall length Length of thread EN AW-6060 T66 (AlMgSi) 1/4 inch 50 mm 20 mm 3/8 inch 50 mm 20 mm 1/2 inch 50 mm 20 mm 3/4 inch 50 mm 20 mm 1 inch 60 mm 25 mm 1 1/4 inch 65 mm 25 mm 1 1/2 inch 45 mm 25 mm 1 1/2 inch 75 mm 30 mm 1 1/2 inch 100 mm 30 mm 2 inch 45 mm 25 mm 2 inch 60 mm 25 mm 2 inch 75 mm 30 mm 2 inch 150 mm 30 mm 2 inch 190 mm 30 mm 2 1/2 inch 45 mm 25 mm 2 1/2 inch 60 mm 25 mm 2 1/2 inch 90 mm 30 mm 2 1/2 inch 90 mm 35 mm 2 1/2 inch 150 mm 35 mm 3 inch 45 mm 25 mm 3 inch extra 50 mm 25 mm 3 inch 60 mm 25 mm 3 inch 100 mm 35 mm 3 inch 180 mm 35 mm 4 inch 45 mm 25 mm 4 inch extra 50 mm 25 mm 4 inch 60 mm 25 mm 4 inch 100 mm 30 mm 4 inch 100 mm 45 mm EN AW-5754 (AlMg3) 2 inch 60 mm 25 mm EN AW-6005A T6 (AlSiMg(A)) 6 inch 150 mm 35 mm

Nipples

Nipples (welding nipples, weld-on couplings, threaded couplings)
Pipe section with external thread (designed according to DIN 259/ISO 228)

Male thread Overall length Length of thread
EN AW-6060 T66 (AlMgSi)
1/4 inch 50 mm 20 mm
3/8 inch 50 mm 20 mm
1/2 inch 50 mm 20 mm
3/4 inch 50 mm 20 mm
1 inch 60 mm 25 mm
1 1/4 inch 65 mm 25 mm
1 1/2 inch 45 mm 25 mm
1 1/2 inch 75 mm 30 mm
1 1/2 inch 100 mm 30 mm
2 inch 45 mm 25 mm
2 inch 60 mm 25 mm
2 inch 75 mm 30 mm
2 inch 150 mm 30 mm
2 inch 190 mm 30 mm
2 1/2 inch 45 mm 25 mm
2 1/2 inch 60 mm 25 mm
2 1/2 inch 90 mm 30 mm
2 1/2 inch 90 mm 35 mm
2 1/2 inch 150 mm 35 mm
3 inch 45 mm 25 mm
3 inch extra 50 mm 25 mm
3 inch 60 mm 25 mm
3 inch 100 mm 35 mm
3 inch 180 mm 35 mm
4 inch 45 mm 25 mm
4 inch extra 50 mm 25 mm
4 inch 60 mm 25 mm
4 inch 100 mm 30 mm
4 inch 100 mm 45 mm
EN AW-5754 (AlMg3)
2 inch 60 mm 25 mm
EN AW-6005A T6 (AlSiMg(A))
6 inch 150 mm 35 mm
Double nipple - Double nipple – pipe section with external thread at both ends (designed according to DIN 259/ISO 228) Male thread Overall length Length of thread EN AW-6060 T66 (AlMgSi) 1 1/2 inch 100 mm 2 x 25 mm 2 inch 80 mm 2 x 25 mm 2 inch 160 mm 2 x 30 mm 3 inch 80 mm 2 x 25 mm 4 inch 100 mm 2 x 25 mm 4 inch 520 mm 2 x 30 mm

Double nipple

Double nipple – pipe section with external thread at both ends (designed according to DIN 259/ISO 228)

Male thread Overall length Length of thread
EN AW-6060 T66 (AlMgSi)
1 1/2 inch 100 mm 2 x 25 mm
2 inch 80 mm 2 x 25 mm
2 inch 160 mm 2 x 30 mm
3 inch 80 mm 2 x 25 mm
4 inch 100 mm 2 x 25 mm
4 inch 520 mm 2 x 30 mm

Pipe nipple

Pipe nipple – pipe section with continuous external thread (designed according to DIN 259/ISO 228)

On request

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