Yuyao Beishuo Hardware Co., Ltd.  

Product Name: M12 Expansion Bolt Boxbolt for Structural Steel Model NO.: BS-012 Head Type: Hexagon Surface Treatment: Hot Galvanized, White Zinc Connection: Male Material: Medium Carbon Steel Standard: DIN, ANSI Product Name: M12 Expansion Bolt Boxbolt for Structural Steel Material Can Choose: Carbon Steel or 316 Stainless Steel Application: Chemical Industry, Environment, Building Use: Blind Connection to Structural Steel and Structura Market: UK, USA, South Ameriac, Asia, Australia.etc Hole Size: 20+1.0, -0.25 Torque: 80nm Tensile: 29.43kn Shear: 48.29kn Diffrent Size: M12*55/M12*80/M12*100 Trademark: No Mark Transport Package: 30PCS/Carton Specification: M12 Origin: Zhejiang, China (Mainland) HS Code: 7318159090 Product Description M12 Expansion Bolt BoxBolt for Structural SteelWe are supplier of famous building company which in UK and USA.galvanized sleeve anchors boxboltcarbon steel or stainless steelmaterialcan be choose.an expansion anchor for steel that can be used to make connections to structural tube sections.suitable for use with rectangular, square and circular sections, or other types of steelwork where access is restricted to one side only.BoxBolt is a fully tested and approved blind connection solution for connecting to hollow section steel or where access is restricted to one side only. The BoxBolt is suitable for use with rectangular, square and even circular hollow sections. The BoxBolt features a hexagon head design to aid installation with a standard wrench.The BoxBolt is available in three finishes; Zinc Plated for the less aggressive environments, Hot Dip Galvanized for the more aggressive environments, and Stainless Steel for the most demanding of applications. These finishes combined with three lengths of BoxBolt make it extremely flexible to suit its environment and application.Description:There have M6.M8,M10,M12,M16,M20Anchor Expansion boxBoltin the form as below:PartNo.&descriptiondimensionalinformationloadinformationboltsizecodesizelength(mm)fixingrange(dimx)acrossofshoulder(mm)shoulderthickness(mm)DimADimBHolesizeboltdiasafe working loads(kn)torque(Nm)minmaxshearM6BS1_06145329185301111+1.0,-0.25M6519M8BS1_08150326226351314+1.0,-0.25M8725BS2_082701246BS3_083902466M10BS1_10150323247401518+1.0,-0.25M101345BS2_102701543BS3_103903063M12BS1_12155325268501820+1.0,-0.25M121580BS2_122801850BS3_1231003670M16BS1_16175335369552026+2.0,-0.25M1635190BS2_1621002460BS3_1631204880M20BS1_2011003424611702533+2.0,-0.25M2040300BS2_2021303072BS2_20315060102Expansion boxbolt for structural steel are mechanical fasteners typically consisting of a bolt, an expansion sleeve, and a cone-shaped nut that, when the bolt is tightened, is driven up inside the sleeve to create a wedging effect and expand the fastener (Figure 2). This 'blind connection' technique can just as easily be used to connect to the web of another structural section type, such as a wide flange beam. Unlike conventional bolted or welded connections, expansion bolts can be quickly installed by simply inserting the fastener into a pre-drilled hole and tightening with a torque wrench. Due to the faster installation process, work in the field is reduced and, therefore, the cost and timeframe of the construction project are decreased.These expansion boxbolt are suitable for structural connections due to their capability to resist loading in both tension and shear. For example, the allowable load values for a 3/4 inch diameter bolt are approximately 12,500 pounds for tension and 11,500 pounds for shear. Product sizes range from 5/16- to 3/4 inch and the total material thickness clamping range is from 1/8-inch for the smallest diameter to 3-3/8-inch for the largest diameter.one is carbon steel,another is 316 stainless steel(the price is more higher than carbon steel).Also,the carbon steel expansion anchor bolts has two surface treatment,one is hot galvanizing,the other is zinc.This M8 expansion anchor boxbolt have three dimensions:M12*20*55mmM12*20*80mmM12*20*100mmWe also have stainless steel matereial:The most common head options are shown here. If you require a different style, please contact us via the quote formPackage details:Carbon Steel Hex Nut Sleeve Anchor Expansion boxbolt/plastic box,then put in wooden carton.How to install:Photos that show the use and installation of expansion bolt