Shelf Angle (Wedge) Inserts & Shims
When cast into concrete, Wedge Inserts and Askew Head Bolts provide a secure and adjustable method for fastening shelf angles and other materials to concrete structures. The anchor's wedging action reduces slippage to a minimum. Shelf Angle Inserts allow vertical adjustment so veneers can be properly aligned despite construction tolerances in the building frame.
SHELF ANGLE INSERTS

No. 425 Wedge Insert:

These heavy-duty malleable iron inserts have three holes for nailing to forms. Anchor loops are designed to take 3/4" (19 mm) reinforcing bars or anchor rods for increased anchorage in concrete. Available plain or hot dip galvanized. Wedge inserts should be installed a minimum of 1-1/2" from the concrete edge.

No. 427 Askew Head Bolts:

The wedge-shaped heads of these steel bolts compliment the wedge-shaped inside face of the Wedge Insert. Available plain, electro-galvanized, or hot dip galvanized. Furnished with washers and nuts.

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No. 425 Wedge Inserts
A

2-1/4"

57mm

2-5/16"

58.7mm

2-1/4"

57mm
Bolt

5/8"

15.9mm

3/4"

19mm

3/4

19mm
Cat. No.

425-5

-

425-6

-

425-L**

-
B

1-1/32"

26.2mm

1-3/16"

30.2mm

1-1/4"

31.7mm
C

1-15/16"

49.2mm

2-1/2"

63.5mm

2-3/8"

60.3mm
D

3-5/8"

92.1mm

3-7/8"

98.4mm

5-1/2"

140mm
E*

1-5/8"

41.3mm

1-3/4"

44.45mm

3"

76.2mm
F***

1"

25mm

1"

25mm

1"

25mm
* E is length of vertical adjustment for Askew head Bolts.
** Long Inserts provide greater adjustability and can be placed near bottom of concrete beams. Anchor loops are 3-1/2" (89)mm above bottom of insert and can be secured to bottom layer of beam reinforcing.


*** F is the distance from the bottom of the insert to the centerline of the Askew Head Bolt.

No. 427 Askew Head Bolts
Bolt

5/8"

15.9mm

3/4"

15.9mm
Cat. No.

427-5

-

427-6

-
Lengths*

1-1/2"

38.1mm

1-1/2"

38.1mm
 

2"

50.8mm

2"

50.8mm
 

2-1/2"

63.5mm

2-1/2"

63.5mm
 

3"

76.2mm

3"

76.2mm
 

 

 

3-1/2"

89mm
* Bolt extends beyond face of Insert approx. 1/4" (6.3mm) less than specified length.
SHIMS

No. 442 Plastic Horseshoe Shims:

High impact plastic shims with up to 4500 p.s.i. compressive strength. Available in 1/16" (1.59mm), 1/8" (3.17 mm), and 1/4" (6.35 mm) thickness. Specify bolt size.


No. 443 Steel Horseshoe Shims:

Heckmann stocks steel shims in standard sizes, and custom fabricates them for special applications. Shims should be as long as the vertical legs of angles to prevent the angles from deflecting under load. 1/16" (1.59 mm), 1/8" (3.17 mm), and 1/4" (6.35 mm) thick shims are available in mill galvanized (1/8" max.), plain, hot dip galvanized, and stainless steel.

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Product Submittal Sheet html
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