Stainless Steel Sockets

Stainless steel sockets join two male-threaded pipes or fittings in a straight line, or provide a threaded outlet on a pipe, tank or manifold body. This page brings together AISI 304 and AISI 316 female threaded sockets and weld-on half sockets. The parts are sold under Novus’s own NVS label; each product page carries a size and stock code table.

How to choose a stainless socket

Use a full threaded socket to join two male parts, or a half socket to weld onto a body and create a threaded outlet. Match the size to the thread of the mating part and choose the grade for the environment.

AISI 304 or 316? AISI 304 (1.4301) is the general-purpose chromium-nickel stainless steel used for drinking and domestic water, hot water, heating and cooling circuits, compressed air and food plants. AISI 316 (1.4401) contains molybdenum and resists chlorides, sea water and chemicals better; it is recommended for pools, coastal, chemical and outdoor use. Threaded parts have BSP (Whitworth) threads and should not be combined with NPT parts.

See the full range in stainless steel fittings and sockets in other materials in couplings. Popular items: the AISI 304 female threaded socket and the AISI 304 weld-on half socket. All NVS products on the NVS brand page.

All products are original and supplied with an invoice; the warranty is provided by the manufacturer or importer. The current price is shown on each product card: the VAT-inclusive price first, the VAT-exclusive price below it.

Frequently asked questions

Socket or nipple?

A socket has female threads on both ends and joins two male parts; a nipple has male threads and joins two female parts.

What is a half socket for?

It is welded onto a pipe, tank, water heater or manifold to create a threaded outlet for a sensor, gauge, drain valve or branch.

How do I seal threaded stainless joints?

Use PTFE tape or a stainless-compatible liquid sealant. Over-tightening stainless threads can cause galling; when joining stainless parts to galvanised or carbon steel pipe, a dielectric union is recommended against galvanic corrosion.

Prepared by the Novus Mühendislik ve Enerji Sistemleri technical team · Updated: November 2026