Type BK1

The BK1 is a self adjusting clamp that consists of two parts. The main body provides a recess to allow a hemispherical washer to be seated. This allows the body to adjust between a specified clamping range and as the washer rotates it provides a flat surface for a nut. This mechanism makes the product suitable for clamping to tapered steel of up to 15 degrees. It is also extremely useful for projects where the thickness of steel may vary. The 5/16", 3/8" and 1/2" versions feature a tab at the back edge that can be located in the open ends of strut products, both aiding installation and preventing rotation once installed. Should the maximum clamping range be exceeded, our BF2 and BG2 packers can be used to increase it. Please see page 17 for details.

 

Product Code
A - Bolt Diameter B1 B2 C D Width Torque Tensile SWL (lbs) Friction SWL (lbs)
(ft lb) (per bolt) (per 4 bolts)
BK1G08   5/16 1/8 to 1/2 1/8 to 3/8 1 5/8  11/16 1  5/8 4 281 X
BK1G10   3/8 1/8 to 5/8 1/8 to 1/2 1  7/8   3/4 1  5/8 14 562 X
BK1G12   1/2 1/8 to 11/16 1/8 to 5/8 1  7/8   7/8 1  5/8 51 1,652 317
BK1G16   5/8 1/8 to 15/16 N/A 2  1/2 1  5/16 2      109 2,880 762
BK1G20   3/4 1/8 to 1-3/16 N/A 2  7/8 1  1/4 2  1/4 210 5,278 1,266
 

The Safe Working Loads are based on assemblies tested in typical conditions.

Do not exceed the Safe Working Load (SWL) specified

  • Hot Dip Galvanized BS EN ISO 1461
  • Manufactured from Ductile Iron to BS EN 1563
  • 5 to 1 Factor of Safety
  • Lloyds Register approved
  • Self adjusting body style