Female Collar - 23mm Round Base (Open) The open base does not limit the screw length and also allows the screw to be inserted from either end of the collar. The most popular size are shown below. However, subject to minimum order quantities, we can supply most combinations of Collar and Base Plate as shown on the Bonding Fasteners Introduction page. More details ....

Female Collar - 38mm Round Base (Open) The open base does not limit the screw length and also allows the screw to be inserted from either end of the collar. The most popular sizes are shown below. However, subject to minimum order quantities, we can supply most combinations of Collar and Base Plate as shown on the Bonding Fasteners Introduction page. More details ....

Female Collar - 38 x 15mm Rectangular Base (Open) The open base does not limit the screw length and also allows the screw to be inserted from either end of the collar. The most popular sizes are shown below. However, subject to minimum order quantities, we can supply most combinations of Collar and Base Plate as shown on the Bonding Fasteners Introduction page. More details ....