Size: M10*55

Raw material: Stainless steel

Original: Tianjin, China

Delivery time: Around 15~20 days after deposit

Threaded Stud with Reduced Shaft

Threaded stud with reduced shaft (It is also called RD type) is typically used in composite steel construction to tie the concrete to steel members and resist shear forces between the concrete slab and steel members. Plenty of steel construction(such as steel building, steel beam, steel bridges, etc.) uses threaded stud with reduced shaft widely.

There are two welding ways to connect threaded stud with reduced shaft(RD) and steel plate, one is welding directly, which need the normal ceramic ferrule with multi-teeth(about 18 teeth or 21 teeth), the other is welding through metal deck, for this option, it is recommended to use special ceramic ferrule thru-deck type(8 teeth).

Producing flow of shear connector

Why Sino stone’s RD Studs popular by the customer?

  • We choose the quality mild carbon steel(SWRCH18A) from Xingtai Steel Factory.
  • We do phosphorization pretreatment for the raw material using drawing machine.
  • We purchase the multi-station cold forging machine from the biggest factory in Zhejiang Province to ensure the better mechanical property of shear connector to match the standard(BS EN ISO13918:2008, AWS D1.1, etc.), or as per customer’s special requirement.
  • We use the automatic riveting machine to install aluminum ball on the end.
  • After rust prevention, Sino stone’s shear connector can suitable for long time ship on the sea.
  • Short delivery time because of our reasonable production flow management


Threaded stud with reduced shaft
Dimensions of threaded stud with reduced shaft(RD) for 15mm≤l2≤100mm
Dimensions in millimeters
a The dimensions after the oblique stroke shall apply if ceramic ferrules, according to the values following the oblique stroken in RF dimension are used