Female Collar - 23mm Round Base (Closed) The round closed base prevents ingress of material into the thread and also serves as a limit stop to prevent the screw entering the substrate. The most popular sizes are shown below. However, subject to minimum order quantities, we can supply most combinations of Collar and any one of the other sizes of Base Plate as   [....] More details ....

Female Collar - 38mm Round Base (Closed) The closed base prevents ingress of material into the thread and also serves as a limit stop to prevent the screw entering the substrate. The most popular sizes are shown below. However, subject to minimum order quantities, we can supply most combinations of Collar and any one of the other sizes of Base Plate as sho  [....] More details ....

Female Collar - 38 x 15mm Rectangular (Closed) The closed base prevents ingress of material into the thread and also serves as a limit stop to prevent the screw entering the substrate. The most popular sizes are shown below. However, subject to minimum order quantities, we can supply most combinations of Collar and any one of the other sizes of Base Plate as shown   [....] More details ....