Different Stud Types

KÖCO. Since 1952 we are producing threaded studs, shear connectors, unthreaded studs, studs with internal thread, boiler tube studs and heat-resistant and scale-resistant welding studs of diameter 3-25 mm from many different materials.

KÖCO Threaded Studs K 800 - similar to strength category 8.8K. As the only manufacturer woldwide, KÖCO can supply threaded studs with a minimum yield strength of 640 N/mm²! These welding studs are pure cold formed parts. The newly developed material K 800 makes it possible.

All KÖCO welding studs are made from materials suitable for stud welding. Dimensions and design of our standard products conform to DIN EN ISO 13918, any non-standard products supplied will be produced to correspond to the norm.

Upon request the properties of each can be documented by test report 2.2 or inspection certificate 3.1 or 3.2 (EN 10204). On demand, further product properties, i.e. impact value can be certified.

KÖCO Threaded Studs K 800 - similar to strength category 8.8K

As the only manufacturer worldwide, KÖCO can supply threaded studs with a minimum yield strength of 640 N/mm²! These welding studs are pure cold formed parts. The newly developed material K 800 makes it possible. Another feature to pursue KÖCOs long term competence in development and production of welding studs.

Upon request the properties of each can be documented by test report 2.2 or inspection certificate 3.1 or 3.2 (EN 10204). On demand, further product properties, i.e. impact value can be certified.

Stud Type

SD - Shear Connectors

Figure	Description	Norm
	ø 6, L = 35–100 mm ø 10, L = 30–175 mm ø 12, L = 30 mm ø 13, L = 25–400mm ø 16, L = 35–525mm ø 19, L = 50–525mm ø 22, L = 50–525mm ø 25, L = 75–525mm	DIN EN ISO 13918 For steel mounting parts according to European Technical ETA–03/0039 (other than ø 6 and ø 12 mm)

Threaded stud with partial thread

Figure	Description	Norm
	M6, L = 2060 mm M8, L = 20–100 mm M10, L = 20–160 mm M12, L = 25–160 mm M16, L = 30–160 mm M20, L = 40–125 mm M24, L = 50–150 mm	DIN EN ISO 13918

RD - Threaded stud with reduced shaft

Figure	Description	Norm
	M6, L = 20–60 mm M8, L = 20–100 mm M10, L = 20–100 mm M12, L = 25–100 mm M16, L = 30–100 mm M20, L = 40–100 mm M24, L = 50–100 mm	DIN EN ISO 13918

DD - Threaded stud with complete thread

Figure	Description
	M6, L = 20–60 mm M8, L = 20–100 mm M10, L = 20–100 mm M12, L = 25–100 mm M16, L = 30–100 mm M20, L = 40–100 mm

UD - Unthreaded stud

Figure	Description	Norm
	ø 6, L = 15–60 mm ø 8, L = 15–100 mm ø 10, L = 20–100 mm ø 12, L = 25–100 mm ø 14,6, L = 20-100 mm ø 16, L = 20–100 mm	DIN EN ISO 13918