Bessey Tools XM-3 GP Steel Spring Clamp, 1" x 1-1/4" - Amazon.com
Roughneck Metal Spring Clamp 25mm : Amazon.co.uk: DIY & Tools
ESUMIC® 6 x 4inch A Metal Spring Clamps, Heavy Duty Spring Metal Spring Clamps, Rubber Coated Tipped Grip Holder For Camping Tarpaulin (Red) (6-Piece) - Amazon.com
Spring Clamp 25mm (1in) | Rapid Online
Great Value, ROU Heavy-Duty Spring Clamp 25mm (1in) by Roughneck | ROU38331