Red Head®
Redi-Bolt®
Removable Anchors

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Recommended Spacing and Edge Distance For Tension loads
Anchor
Dia.
Installation
Torque
Edge Distance
Required To Obtain
Max. Working Load
Min. Allowable
Edge Distance At
Which The load Factor
Applied=0.75
Spacing Required
to Obtain Max.
Working Load
Min. Allowable
Spacing Between Anchors
Load Factor
Applied=0.50
Inches (mm) Ft.Lbs (Nm) Inches (mm) Inches (mm) Inches (mm) Inches (mm)
3/8 (9.5) 35 (47.5) 3-3/4 (95.3) 1-7/8 (47.6) 4-1/2 (114.3) 1-7/8 (47.6)
1/2 (12.7) 60 (81.4) 5 (127) 2-1/2 (63.5) 6 (152.4) 2-1/2 (63.5)
5/8 (15.9) 100 (135.7) 6-1/4 (158.8) 3-1/8 (79.4) 7-1/2 (190.5) 3-1/8 (79.4)
3/4 (19.1) 120 (162.8) 7-1/2 (190.5) 3-3/4 (95.3) 9 (228.6) 3-3/4 (95.3)

Recommended Spacing and Edge Distance For Shear loads
Anchor
Dia.
Installation
Torque
Edge Distance
Required To Obtain
Max. Working Load
Min. Allowable
Edge Distance At
Which The load Factor
Applied=0.50
Spacing Required
to Obtain Max.
Working Load
Min. Allowable
Spacing Between Anchors
Load Factor
Applied=0.50
Inches (mm) Ft.Lbs (Nm) Inches (mm) Inches (mm) Inches (mm) Inches (mm)
3/8 (9.5) 35 (47.5) 4-1/2 (114.3) 1-7/8 (47.6) 4-1/2 (114.3) 1-7/8 (47.6)
1/2 (12.7) 60 (81.4) 6 (152.4) 2-1/2 (63.5) 6 (152.4) 2-1/2 (63.5)
5/8 (15.9) 100 (135.7) 7-1/2 (190.5) 3-1/8 (79.4) 7-1/2 (190.5) 3-1/8 (79.4)
3/4 (19.1) 120 (162.8) 9 (228.6) 3-3/4 (95.3) 9 (228.6) 3-3/4 (95.3)

Ultimate Shear and Tension Values (Lbs/kN) in 4000 PSI (27.6 MPa) Concrete
Anchor
Dia.
Embedment Installation Torque Ultimate Tension Ultimate Shear
Inches (mm) Inches (mm) Ft.Lbs. (Nm) Lbs. (kN) Lbs (kN)
3/8 (9.5) 2 (50.8) 35 (47.5) 5,195 (23.1) 7,730 (34.4)
3/8 (9.5) 2-1/2 (63.5) 35 (47.5) 5,870 (26.1) 8,018 (35.7)
1/2 (12.7) 2/1/2 (63.5) 60 (81.4) 6.931 (30.8) 10,132 (45.1)
1/2 (12.7) 4 (101.6) 60 (81.4) 10,518 (46.8) 13,005 (57.9)
5/8 (15.9) 2-3/4 (69.9) 100 (135.7) 8,585 (38.2) 13,484 (60)
5/8 (15.9) 5 (127) 100 (135.7) 19,219 (85.5) 21,040 (93.6)
3/4 (19.1) 3 (76.2) 120 (162.8) 10,574 (47) 18,733 (83.3)
3/4 (19.1) 6 (152.4) 120 (162.8) 20,267 (90.2) 29,668 (132)

Ultimate Shear and Tension Values (Lbs/kN) in C90 Grout-filled CMU
Anchor
Dia.
Embedment Installation Torque Ultimate Tension Ultimate Shear
Inches (mm) Inches (mm) Ft.Lbs. (Nm) Lbs. (kN) Lbs (kN)
3/8 (9.5) 2 (50.8) 20 (27.1) 3,798 (16.9) 4,855 (21.6)
3/8 (9.5) 2-1/2 (63.5) 22 (27.1) 3,896 (17.3) 4,855 (21.6)
1/2 (12.7) 2/1/2 (63.5) 35 (47.5) 3,993 (17.8) 6,867 (30.5)
1/2 (12.7) 4 (101.6) 35 (47.5) 4,182 (18.6) 6,867 (30.5)
5/8 (15.9) 2-3/4 (69.9) 60 (81.4) 3,990 (17.7) 11,777 (52.4)
5/8 (15.9) 5 (127) 60 (81.4) 4,634 (20.5) 12,525 (55.7)
3/4 (19.1) 3 (76.2) 85 (115.3) 4,693 (20.9) 12,493 (55.6)
3/4 (19.1) 6 (152.4) 85 (115.3) 5,908 (26.3) 13,964 (62.1)

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