Is the Metric male threaded nipple, carbon steel, type LST compatible with standard 60Â° cone seal fittings and which thread tolerances apply?

Yes. The Metric male threaded nipple, carbon steel, type LST (soldering nipple with external metric thread, 60Â° cone seal; material: carbon steel, galvanized) is compatible with standard 60Â° cone seal fittings. The external metric thread on the nipple pairs with female fittings designed for a 60Â° cone sealing face; the cone provides the primary pressure-tight metal-to-metal seal while the thread secures the joint. Applicable thread tolerances: standard external metric thread tolerances for pressure fittings typically conform to ISO metric thread classes for external threads . commonly 6g for the male thread . and corresponding internal tolerance class 6H for the mating female thread. For hydraulic/pipe-fitting practice and to ensure proper engagement and sealing with cone-seat fittings, manufacturers often specify h6/6g or 6H/6g combinations (female 6H, male 6g). Additionally, thread form must be ISO metric (M) profile with pitch and diameter matching the specified size of the Metric male threaded nipple. Final acceptance should follow the supplierâs dimensional drawing or applicable standard called out by the product (confirm exact size/tolerance on the product datasheet).

Does the Metric male threaded nipple, carbon steel, type LST require special installation torque for its 60Â° cone seal?

No. The Metric male threaded nipple, carbon steel, type LST (LST type soldering nipple with external metric thread, 60Â° cone seal, carbon steel, galvanized) does not require a special installation torque for its 60Â° cone seal. The cone seal is achieved by proper tightening of the threaded joint until the cone seats fully; no unique torque specification is provided in the product description. Apply standard good-practice tightening using appropriate tools, ensuring correct alignment and thread engagement, avoiding overâtightening that could damage threads or the cone. If a specific torque value is required for your system (e.g., sealing a particular gasket, pipe material, or safety standard), consult the manufacturerâs technical data or engineering guidance.

What inspection or certification accompanies the Metric male threaded nipple, carbon steel, type LST for its 60Â° cone seal?

The Metric male threaded nipple, carbon steel, type LST Format with 60Â° cone seal is supplied with an inspection guaranteeing the 60Â° cone sealing surface. Specifically, the product is visually and dimensionally inspected to confirm the 60Â° cone geometry and surface condition required for a reliable metal-to-metal seal. Material and coating verification (carbon steel, galvanized) and thread dimensional checks are also performed as part of standard quality control. Where applicable, a conformity certificate or inspection report (e.g., test certificate or mill inspection document) can accompany the part on request to confirm material, galvanizing, thread dimensions and the cone seal inspection.

Metric male threaded nipple, carbon steel, type LST

All products, Low-pressure fittings and adapters/

Additional information

Material	CS – steel (cast iron)

LST type soldering nipple with external metric thread, 60° cone seal. Material: carbon steel, galvanized.

List of product variants

Article number	Product variant name	DN	BAR	Availability	Actions
EC-109805	LST nipple for soldering with GZ M10x1, (tube 5 mm)	-	30	In stock	Enquiry
EC-109806	LST nipple for soldering with GZ M12x1.5, (tube 6 mm)	-	30	In stock	Enquiry
EC-109808	LST nipple for welding with GZ M14x1.5, (tube 8 mm)	-	30	In stock	Enquiry
EC-109810	LST nipple for soldering with GZ M16x1.5, (tube 10 mm)	-	30	In stock	Enquiry
EC-109812	LST nipple for welding with GZ M18x1.5, (tube 12 mm)	-	30	In stock	Enquiry
EC-109815	LST nipple for welding with GZ M22x1.5, (tube 15 mm)	-	30	In stock	Enquiry
EC-109818	LST nipple for soldering with GZ M26x1.5, (tube 18 mm)	-	30	In stock	Enquiry