unit weight shear connector

Unit Weight Shear Connector ( SD )

There are too many customers puzzled by the unit weight shear connector, today we’ll introduce the mass of ISO13918:2008, there are only approximate, final weight will have a little different as per raw materials.

Mass of Shear Connectors(SD)
Mass in kilograms
Nominal length of stud
(l2 a)
Mass b
mmd1=10mmd1=13mmd1=16mmd1=19mmd1=22mmd1=25mm
5058121620-
7561016212837
10081320273547
12591624334357
150111828385066
175122132445876
200-2336496585
225--40557395
250--446080105
275---6688114
300---7295124
325---77102134
350---83110143
a l2 is the design value. For special conditions, e.g. through-deck stud welding, l2 will be shorter.
b Due to the tolerances, the values of mass are only approximate (specific weight = 7,85kg/dm3), in kilograms per 1000 pieces.

The theoretical unit weight shear connector M19*100 is 0.27kgs in the table, but it is only 0.254~0.258kgs in fact for the mild steel (such as SWRCH18A, SWRCH15A, etc.), why this about 5% difference? Please see the following:

Dimensions of shear connector

The main reason for the difference is tolerance of the shear connector, normally the manufacturer produces as per the middle tolerance if they produce as per the max tolerance, the theoretical and actual unit weight will be very close.

Normally the Chinese factories produce shear connector as per min tolerance in practice, so please tell the factory to produce as per max tolerance when you sourcing shear connector from China.

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