Is the GAI-B nut connection, stainless steel, compatible with both metric external threads and BSP internal threads per DIN 2353?

Yes. The GAI-B nut connection, stainless steel Format, per DIN 2353 is designed with a 24Â° socket that accommodates an external metric thread and an internal BSP thread. That means a single GAI-B fitting combines a metric external thread mating surface (on the socket) with an internal BSP (British Standard Pipe) thread, making it compatible with components that use metric external threads or BSP internal threads as specified. It is offered in L (light) and S (heavy) series and is made from AISI 316 stainless steel.

Can the GAI-B nut connection, stainless steel, be ordered in both L (light) and S (heavy) series per DIN 2353?

Yes. The GAI-B nut connection, stainless steel can be ordered in both L (light) and S (heavy) series per DIN 2353. The GAI-B screw connection features a 24Â° DIN 2353 socket with external metric thread and internal BSP thread, and is available in L (light series) and S (heavy series) configurations. Material: AISI 316 steel.

Does the GAI-B nut connection, stainless steel, meet corrosion resistance requirements for AISI 316 in marine environments?

Yes. the GAI-B nut connection, stainless steel (material: AISI 316) generally meets corrosion resistance requirements for many marine environments. AISI 316 stainless steel contains molybdenum, which significantly improves resistance to pitting and crevice corrosion caused by chlorides (sea water and salty atmospheres), so the GAI-B connection is suitable for typical coastal and moderately aggressive marine conditions. However, a few practical caveats: - In highly aggressive settings (continuous immersion in seawater, splash zones with heavy chloride exposure, polluted or warm tropical waters) even AISI 316 can suffer localized corrosion over time; in such cases consider duplex stainless steels, super-austenitics, or additional corrosion protection (coatings, cathodic protection, sacrificial anodes). - Manufacturing details matter: surface finish, machining marks, threads, and crevices (GAI-B has internal BSP thread and external metric thread interfaces) can promote crevice corrosion if not properly finished, cleaned, and installed with correct sealing practices. - Galvanic corrosion risk exists when the GAI-B nut is paired with dissimilar metals; ensure compatible materials or electrical isolation to avoid accelerated corrosion. - For critical or long-term marine service, validate with application-specific testing, standards, and maintenance plans. Conclusion: For standard marine use the GAI-B nut connection, stainless steel (AISI 316) is appropriate, but assess exposure severity, assembly details, and galvanic compatibility to ensure long-term performance.

GAI-B nut connection, stainless steel

Additional information

Material	SS – stainless steel

DIN 2353 screw connection, type GAI-B: 24° DIN 2353 socket with external metric thread and internal BSP thread. Available as: L (light series), S (heavy series). Material: AISI 316 steel.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
HD-GAI-06L-B-02-SS	DIN 2353 fitting GAI 6L 1/8" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-06L-B-04-SS	DIN 2353 fitting GAI 6L 1/4" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-06S-B-04-SS	DIN 2353 connector GAI 6S 1/4" BSP, AISI 316	-	630	In stock	Enquiry
HD-GAI-08L-B-02-SS	DIN 2353 fitting GAI 8L 1/8" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-08L-B-04-SS	DIN 2353 fitting GAI 8L 1/4" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-08L-B-08-SS	DIN 2353 fitting GAI 8L 1/2" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-08S-B-04-SS	DIN 2353 connector GAI 8S 1/4" BSP, AISI 316	-	630	In stock	Enquiry
HD-GAI-10L-B-04-SS	DIN 2353 fitting GAI 10L 1/4" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-10L-B-06-SS	DIN 2353 fitting GAI 10L 3/8" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-10L-B-08-SS	DIN 2353 fitting GAI 10L 1/2" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-10S-B-06-SS	DIN 2353 fitting GAI 10S 3/8" BSP, AISI 316	-	630	In stock	Enquiry
HD-GAI-12L-B-06-SS	DIN 2353 fitting GAI 12L 3/8" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-12S-B-06-SS	DIN 2353 connector GAI 12S 3/8" BSP, AISI 316	-	630	In stock	Enquiry
HD-GAI-14S-B-08-SS	DIN 2353 fitting GAI 14S 1/2" BSP, AISI 316	-	630	In stock	Enquiry
HD-GAI-15L-B-08-SS	DIN 2353 fitting GAI 15L 1/2" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-16S-B-08-SS	DIN 2353 fitting GAI 16S 1/2" BSP, AISI 316	-	400	In stock	Enquiry
HD-GAI-18L-B-08-SS	DIN 2353 fitting GAI 18L 1/2" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-20S-B-12-SS	DIN 2353 fitting GAI 20S 3/4" BSP, AISI 316	-	400	In stock	Enquiry
HD-GAI-22L-B-12-SS	DIN 2353 fitting GAI 22L 3/4" BSP, AISI 316	-	160	In stock	Enquiry
HD-GAI-25S-B-16-SS	DIN 2353 fitting GAI 25S 1" BSP, AISI 316	-	400	In stock	Enquiry
HD-GAI-28L-B-16-SS	DIN 2353 fitting GAI 28L 1" BSP, AISI 316	-	160	In stock	Enquiry
HD-GAI-30S-B-20-SS	DIN 2353 fitting GAI 30S 1.1/4" BSP, AISI 316	-	400	In stock	Enquiry
HD-GAI-35L-B-20-SS	DIN 2353 fitting GAI 35L 1.1/4" BSP, AISI 316	-	160	In stock	Enquiry
HD-GAI-38S-B-24-SS	DIN 2353 fitting GAI 38S 1.1/2" BSP, AISI 316	-	315	In stock	Enquiry
HD-GAI-42L-B-24-SS	DIN 2353 fitting GAI 42L 1.1/2" BSP, AISI 316	-	160	In stock	Enquiry

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DIN 2353 screw connection, type GAI-B: 24° DIN 2353 socket with external metric thread and internal BSP thread. Available as: L (light series), S (heavy series). Material: AISI 316 steel.