Specifications hex nut ,hex flange nut 1/2,can be used with our form tie ,washer B cone in building construction

we manufacture some kinds of formwork accessories such as thread rod ,washer swivel,fixed double and single scaffold coupler with different angles .pin,wedge ,wedge bolt ,wall tie,thread rod,B-form tie/bolt,B-nut,D-cone ,expansion anchor bolt ,implosion nut,wing nut,U-clip, and other non-standard fastener most of them are used in building ,bridge,railway construction to fix formwork