Shop › Matthews Quaker / Duck Bill Clamp - Bead Board Holder Image 1 of 1 Matthews Quaker / Duck Bill Clamp - Bead Board Holder Sale Price: $111.99 Original Price: $132.00 Part No: 429042 Matthews Quaker / Duck Bill Clamp 429042 Bead Board Holder. This clamp is ideal for positioning foam core or bead board. Wt: 2 lbs