Aug 24, 2020 —
3/4 in. Carbon Steel Concrete Insert | DEWALT | Ferguson
MECHANICAL ANCHORS
GENERAL INFORMATION
GENERAL INFORMATION
SECTION CONTENTS
WOOD-KNOCKER®II+
Concrete Inserts
PRODUCT DESCRIPTION
Wood-Knocker II concrete inserts are speciically designed to provide hangar attachments for mechanical, electrical, plumbing (MEP) and ire protection. Wood-Knocker II+ concrete inserts are installed onto forms used to support newly poured concrete loor slabs, roof slabs or walls.
General Information.........................1 Material Specifications ...................2 Installation Instructions..................2 Installation Specifications ..............2 Reference Data (ASD)......................3 Strength Design (SD).......................4 Ordering Information.......................7
When the forms are stripped, the color-coded lange is visibly embedded in the concrete surface. The inserts allow the attachment of steel threaded rod or threaded bolts in sizes ranging from 1/4" to 3/4" in diameter, including a 3/8-1/2" multi insert. The hex impact plate offers resistance to rotation within the concrete as a steel threaded rod or threaded bolt is being installed.
GENERAL APPLICATIONS AND USES
· Hanging Pipe and sprinkler systems · HVAC Ductwork and strut Channels · suspending Trapeze and Cable Trays
· Mechanical Unit overhead Utilities · Conduit and Lighting system · seismic Loading and Cracked Concrete
FEATURES AND BENEFITS
+ Fast and simple to install, low installed cost + Color coded by size for simple identiication + Wood-Knocker II+ can be installed in form pours only 3.5" thick + Hex head does not rotate when set + Insert design allows for full thread engagement + All sizes suitable for tension and shear loading
APPROVALS AND LISTINGS
· International Code Council, Evaluation service (ICC-Es), Esr-3657 for concrete - approved for seismic and wind loading
· Code compliant with the 2015 IBC, 2015 IrC, 2012 IBC, 2012 IrC, 2009 IBC, and 2009 IrC · Tested in accordance with AsTM E488 and ICC-Es AC446 for use in concrete
under the design provisions of ACI 318 (strength Design method) · Evaluated and qualiied by an accredited independent testing laboratory
for recognition in cracked and uncracked concrete · Underwriters Laboratories (UL Listed) - File No. EX1289, see listing for sizes.
Also UL listed and recognized for use in air handling spaces. · FM Approvals (Factory Mutual) File No. J.I. 3059197
WOOD-KNOCKER II+ FORM INSERT
ANCHOR MATERIALS · Carbon steel and Engineered Plastic ROD/ANCHOR SIZE RANGE (TYP.) · 1/4" to 3/4" threaded rod for
Wood-Knocker Concrete Inserts SUITABLE BASE MATERIALS · Normal-weight Concrete · Lightweight Concrete
SMIC REGI
ALI F I C ATIO
CODE LISTED
ICC-ES ESR-3657
CONCRETE
SEI N
ON QU
GUIDE SPECIFICATIONS
CsI Divisions: 03 15 19 - Cast-In Concrete Anchors and 03 16 00 - Concrete Anchors. Concrete inserts shall be Wood-Knocker II+ as supplied by DEWALT, Towson, MD. Anchors shall be installed in accordance with published instructions and the Authority Having Jurisdiction.
TECHNICAL GUIDE MECHANICAL ANCHors ©2018 DEWALT rEV. D
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MECHANICAL ANCHORS
MATERIAL SPECIFICATIONS
MATERIAL SPECIFICATIONS
Wood-Knocker II+
Anchor Component Insert Body Flange
Zinc Plating
Component Material
AIsI 1008 Carbon steel or equivalent Engineered Plastic
AsTM B 633 (Fe/Zn5) Min. plating requirements for mild service condition
Material Properties for Threaded Rod
Steel Description
Steel Specification (ASTM)
standard carbon rod High strength carbon rod
A 36 or A 307, Grade C A 193, Grade B7
Rod Diameter (inch)
1/4 to 3/4 1/4 to 3/4
Minimum Yield Strength, fy (ksi)
36.0 105.0
Minimum Ultimate Strength, fu (ksi)
58.0 125.0
INSTALLATION INSTRUCTIONS
Installation Instructions for Wood-Knocker II+
Position
Drive
Step 1 Position insert on formwork plastic down.
Step 2 Drive insert head down until head contacts plastic (or mount/screw down no nail versions).
Prepare
Step 3 After formwork removal, remove nails/screws as necessary (e.g. flush mounted fixtures).
INSTALLATION SPECIFICATIONS
Wood-Knocker II+ Cast-In-Place Inserts for Form Pour Concrete
A 2-3/4"
Head Plate
Nail
Internal Thread 1/4", 3/8", 3/8"&1/2" or 1/2"
Internal Thread 5/8" or 3/4"
Attach
Step 4 After concrete pour and cure, install threaded steel element (rod/ bolt) into the insert by firmly pushing threaded rod through plastic center to puncture thread seal. Attach fixture as applicable (e.g. seismic brace).
2"
Plastic
A
Sleeve
Before Setting
SECTION A-A
SECTION A-A
After Setting
1.50"
WOOD KNOCKER
Thread Size Marking
1.75"
WOOD KNOCKER
Thread Size Marking
Wood-Knocker II+
Nominal Rod/Anchor Size
tsh
Dimension
Notation
1/4"
3/8" 3/8" & 1/2" Multi 1/2"
5/8"
3/4"
Thread size, UNC
-
1/4-20 3/8-16 3/8-16 1/2-13 1/2-13 5/8-11 3/4-10
Approx. Internal Thread Length (in.)
-
3/8
5/8
9/16 9/16 11/16 15/16 1-1/8
Approx. Internal Thread standoff from Plastic sleeve Bottom, after setting (in.)
-
3/8
3/8 15/16 3/8
3/8
3/8
3/8
Plastic sleeve Flange Dia. (in.) Plastic sleeve Flange Thickness (in.)
dpf
2-3/8 2-3/8
-
3/16 3/16
2-3/8 3/16
2-3/8 3/16
2-3/8 3/16
2-3/8 3/16
overall Length, after setting (in.)
2
2
2
2
2
2
Break-off Nail Length (in.)
n
3/4
3/4
3/4
3/4
3/4
3/4
dpf
steel Head Plate Thickness (in.)
tsh
1/8
1/8
1/8
1/8
1/8
1/8
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MECHANICAL ANCHORS
REFERENCE DATA (ASD)
REFERENCE DATA (ASD)
Ultimate and Allowable Load Capacities for Wood-Knocker II+ Inserts Installed in Normal-Weight Concrete1,2,3
Rod/Insert Diameter
d in.
Nominal Embedment
Depth hv in.
Insert Spacing
in.
Edge Distance
in.
Minimum Concrete Compressive Strength (f´c)
3,000 psi
4,500 psi
Ultimate Load
Allowable Load
Ultimate Load
Allowable Load
Tension lbs.
Shear lbs.
Tension lbs.
Shear lbs.
Tension lbs.
Shear lbs.
Tension lbs.
Shear lbs.
1/4
2
6
6
3,720
1,490
1,240
495
4,250
1,610
1,415
535
3/8
2
6
6
4,820
5,330
1,605
1,775
7,190
5,620
2,395
1,875
1/2
2
6
6
4,820
7,400
1,605
2,465
7,190
8,590
2,395
2,865
5/8
2
6
6
4,650 11,360 1,550
3,785
7,350 13,010 2,450
4,335
3/4
2
6
6
4,650 11,360 1,550
3,785
7,350 14,590 2,450
4,865
1. Allowable load capacities listed are calculated using an applied safety factor of 3.0. 2. The allowable working load must be the lesser of the insert capacity or the steel strength of the threaded rod. 3. Linear interpolation may be used to determine ultimate loads for intermediate compressive strengths.
Ultimate and Allowable Load Capacities for Wood-Knocker II+ Inserts Installed in Sand-lightweight Concrete1,2
Rod/Insert Diameter
d in.
Nominal Embedment
Depth hv in.
Insert Spacing
in.
Edge Distance
in.
f´c 3,000 psi
Ultimate Load
Allowable Load
Tension lbs.
Shear lbs.
Tension lbs.
Shear lbs.
1/4
2
6
6
3,570
1,380
1,190
460
3/8
2
6
6
4,270
5,280
1,425
1,760
1/2
2
6
6
4,270
7,180
1,425
2,395
5/8
2
6
6
4,600
7,590
1,535
2,530
3/4
2
6
6
4,600
7,590
1,535
2,530
1. Allowable load capacities listed are calculated using an applied safety factor of 3.0.
2. The allowable working load must be the lesser of the insert capacity or the steel strength of the threaded rod.
3. For 1/4", 3/8" and 1/2" diameters: When the inserts are spaced 3" center-to-center the inserts allowable tension capacity must be reduced by 25 percent and the allowable shear capacity reduced by 15 percent. When the inserts have a 3" edge distance the inserts allowable tension capacity does not require a reduction and the allowable shear capacity must be reduced by 40 percent.
2"
Min. 3-1/2"
TECHNICAL GUIDE MECHANICAL ANCHors ©2018 DEWALT rEV. D
Wood-Knocker Insert (Typ)
Threaded Rod (Typ)
Allowable Steel Strength for Threaded Rod
Anchor Diameter
d in.
Nominal Area of
Rod in.2
ASTM A36 lbs.
Allowable Tension
ASTM A307 Grade C
lbs.
1/4
0.0491
940
3/8
0.1104
2,115
1/2
0.1963
3,755
5/8
0.3068
5,870
3/4
0.4418
8,455
940 2,115 3,755 5,870 8,455
Allowable tension = fu (Anom) (0.33); Allowable shear = fu (Anom) (0.17)
ASTM A193 Grade B7
lbs.
2,160 4,375 7,775 12,150 17,495
ASTM A36 lbs.
485 1,090 1,940 3,025 4,355
Allowable Shear
ASTM A307 Grade C
lbs.
485 1,090 1,940 3,025 4,355
ASTM A193 Grade B7
lbs.
1,030 2,255 4,055 6,260 9,010
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MECHANICAL ANCHORS
STRENGTH DESIGN (SD)
STRENGTH DESIGN (SD)
Wood-Knocker II+ Insert Design Information1,2,3,4,5,6,7,8
Design Information
Symbol
Units
1/4-inch
3/8-inch
1/2-inch
5/8-inch
3/4-inch
Insert o.D.
Insert head net bearing area
Effective embedment depth
Minimum member thickness
Effectiveness factor for cracked concrete Modification factor for tension strength in uncracked concrete Nominal tension strength of single insert as governed by steel strength Nominal tension strength of single insert as governed by steel strength, for seismic loading Nominal steel shear strength of single insert
Nominal steel shear strength of single insert, for seismic loading
da (do) Abrg hef hmin kc C,N Nsa,insert Nsa,insert,eq Vsa,insert Vsa,insert,eq
in. (mm) in2 (mm2) in. (mm)
-
(sI) lb (kN) lb (kN) lb (kN) lb (kN)
0.7 (18)
1.20 (762)
1.75 (45)
3.5 (89)
24 (10)
1.25
10,270 (45.7)
10,270 (45.7)
7,180 (31.9)
7,180 (31.9)
0.7 (18)
1.20 (762)
1.75 (45)
3.5 (89)
24 (10)
1.25
10,270 (45.7)
10,270 (45.7)
7,180 (31.9)
7,180 (31.9)
0.7 (18)
1.20 (762)
1.75 (45)
3.5 (89)
24 (10)
1.25
9,005 (40.1)
9,005 (40.1)
7,180 (31.9)
7,180 (31.9)
1.0 (25)
1.30 (839)
1.75 (45)
3.5 (89)
24 (10)
1.25
12,685 (56.4)
12,685 (56.4)
9,075 (40.4)
9,075 (40.4)
1.0 (25)
1.30 (839)
1.75 (45)
3.5 (89)
24 (10)
1.25
12,685 (56.4)
12,685 (56.4)
9,075 (40.4)
9,075 (40.4)
For sI: 1 inch = 25.4 mm, 1 inch2 = 635 mm2, 1 pound = 0.00445 kN, 1 psi = 0.006895 MPa. For pound-inch unit: 1 mm = 0.03937 inches.
1. Concrete must have a compressive strength f'c of 2,500 psi minimum.
2. Design of headed cast-in specialty inserts shall be in accordance with the provisions of ACI 318-14 Chapter 17 or ACI 318-11 Appendix D for cast-in headed anchors.
3. strength reduction factors (ø) for the inserts are based on ACI 318-14 17.3.3 or ACI 318-11 D.4.3 for cast-in headed anchors. Condition B is assumed. strength reduction factors for load combinations in accordance with ACI 318-14 section 5.3 or ACI 318-11 section 9.2 governed by steel strength of the insert are taken as 0.65 for tension and 0.60 for shear; values correspond to brittle steel elements. The value of ø applies when the load combinations of IBC section 1605.2, ACI 318-14 section 5.3 or ACI 318-11 section 9.2 are used in accordance with ACI 318-14 17.3.3 or ACI 318-11 D.4.3. If the load combinations of ACI 318-11 Appendix C are used, then the appropriate value of ø must be determined in accordance with ACI 318-11 D4.4.
4. The concrete tension strength of headed cast-in specialty inserts shall be calculated in accordance with ACI 318-14 Chapter 17 or ACI 318-11 Appendix D.
5. Insert o.D. is the outside diameter of the headed insert body.
6. only the largest size of threaded rod or bolt for the 3/8 & 1/2 inch multi insert must be used for applications resisting shear loads.
7. Minimum spacing distance between anchors and minimum edge distance for cast-in Wood-Knocker II+ anchors shall be in accordance with ACI 318-14 17.7 or ACI 318-11 D.8.
8. The strengths shown in the table are for inserts only. Design professional is responsible for checking threaded rod or bolt strength in tension, shear, and combined tension and shear, as applicable. see steel Design Information table for common threaded rod elements.
Wood-Knocker II+ Insert Installed in Soffit of Form Pour Concrete Floor and Roof Assemblies
Normal Weight Concrete Or Lightweight Concrete (Minimum 2,500 PSI)
Min.
Thick
hef
Wood-Knocker Insert (Typ)
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MECHANICAL ANCHORS
STRENGTH DESIGN (SD)
Specifications And Physical Properties Of Common Carbon Steel Threaded Rod Elements1
Threaded Rod Specification
Units
Min. Specified Ultimate Strength, Futa
Min. Specified Yield Strength
-Futa
0.2 Percent Offset, Fya
Fya
Elongation Minimum Percent5
Reduction Of Area
Min. Percent
Related Nut Specification6
AsTM A36/A36M2 and F15543 Grade 36
psi (MPa)
58,000 (400)
36,000 (248)
1.61
23
40
AsTM A194 /
(50 for A36) A563 Grade A
Carbon steel
AsTM F15543 Grade 105
AsTM A193/A193M4 Grade B7
psi (MPa)
psi (MPa)
125,000 (862)
125,000 (860)
105,000 (724)
105,000 (720)
1.19
15
1.19
16
45 AsTM A194 / A563 Grade DH
50
For sI: 1 inch = 25.4 mm, 1 psi = 0.006897 MPa. For pound-inch units: 1 mm = 0.03937 inch, 1 MPa = 145.0 psi. 1. Inserts may be used in conjunction with all grades of continuously threaded carbon steels (all-thread) that comply with code reference standards and that have thread characteristics
comparable with ANsI B1.1 UNC Coarse Thread series. 2. standard specification for Carbon structural steel. 3. standard specification for Anchor Bolts, steel, 36, 55, and 105-ksi Yield strength. 4. standard specification for Alloy-steel and stainless steel Bolting Materials for High Temperature or High Pressure service and other special Purpose Applications. 5. Based on 2-inch (50 mm) gauge length except AsTM A193, which are based on a gauge length of 4d (drod). 6. Where nuts are applicable, nuts of other grades and style having specified proof load stress greater than the specified grade and style are also suitable.
Steel Design Information For Common Threaded Rod Elements Used With Concrete Inserts1,2,3,4
Design Information
Symbol
Units
1/4-inch
3/8-inch
1/2-inch
5/8-inch
3/4-inch
Threaded rod nominal outside diameter
drod
in.
0.250
0.375
0.500
0.625
0.750
(mm)
(6.4)
(9.5)
(12.7)
(15.9)
(19.1)
Threaded rod effective cross-sectional area
Ase
in2 (mm2)
0.032 (21)
0.078 (50)
0.142 (92)
0.226 (146)
0.335 (216)
Nominal tension strength of AsTM A36 threaded rod as governed by steel strength
Nsa,rod,A36
lb (kN)
1,855 (8.2)
4,525 (20.0)
8,235 (36.6)
13,110 (58.3)
19,430 (86.3)
Nominal seismic tension strength of AsTM A36 threaded rod as governed by steel strength
Nsa,rod,A36,eq
lb (kN)
1,855 (8.2)
4,525 (20.0)
8,235 (36.6)
13,110 (58.3)
19,430 (86.4)
Nominal tension strength of AsTM A193, Gr. B7 threaded rod as governed by steel strength
Nsa,rod,B7
lb (kN)
4,000 (17.7)
9,750 (43.1)
17,750 (78.9)
28,250 (125.7)
41,875 (186.0)
Nominal seismic tension strength of AsTM A193, Gr. B7 threaded rod as governed by steel strength
Nsa,rod,B7,eq
lb (kN)
4,000 (17.7)
9,750 (43.1)
17,750 (78.9)
28,250 (125.7)
41,875 (186.0)
Nominal shear strength of AsTM A36 threaded rod as governed by steel strength
Vsa,rod,A36
lb (kN)
1,115 (4.9)
2,715 (12.1)
4,940 (22.0)
7,865 (35.0)
11,660 (51.9)
Nominal seismic shear strength of AsTM A36 threaded rod as governed by steel strength
Vsa,rod,A36,eq
lb (kN)
780
1,900
3,460
5,505
8,160
(3.5)
(8.4)
(15.4)
(24.5)
(36.3)
Nominal shear strength of AsTM A193, Gr. B7 threaded rod as governed by steel strength
Vsa,rod,B7
lb (kN)
2,385 (10.6)
5,815 (25.9)
10,640 (7.3)
16,950 (75.4)
25,085 (111.6)
Nominal seismic shear strength of AsTM A193, Gr. B7 threaded rod as governed by steel strength
Vsa,rod,B7,eq
lb (kN)
1,680 (7.5)
4,095 (18.2)
7,455 (34.2)
11,865 (52.8)
17,590 (78.2)
For sI: 1 inch = 25.4 mm, 1 pound = 0.00445 kN, 1 in2 = 645.2 mm2. For pound-inch unit: 1 mm = 0.03937 inches.
1. Values provided for steel element material types based on minimum specified strengths and calculated in accordance with ACI 318-11 Eq. (D-2) and Eq. (D-29).
2. Nsa shall be the lower of the Nsa,rod or Nsa,insert for static steel strength in tension; for seismic loading Nsa,eq shall be the lower of the Nsa,rod,eq or N . sa,insert,eq 3. Vsa shall be the lower of the Vsa,rod or Vsa,insert for static steel strength in tension; for seismic loading Vsa,eq shall be the lower of the Vsa,rod,eq or V . sa,insert,eq
4. strength reduction factors shall be taken from ACI 318-14 17.3.3 or ACI 318-11 D.4.3 for steel elements. Condition B is assumed. strength reduction factors for load combinations in accordance with ACI 318-14 section 5.3 or ACI 318-11 section 9.2 governed by steel strength of the threaded rod are taken as 0.75 for tension and 0.65 for shear; values correspond to ductile steel elements. The value of ø applies when the load combinations of IBC section 1605.2, ACI 318-14 section 5.3 or ACI 318-11 section 9.2 are used in accordance with ACI 318-14 17.3.3 or ACI 318-11 D.4.3. If the load combinations of ACI 318-11 Appendix C are used, then the appropriate value of ø must be determined in accordance with ACI 318-11 D4.4.
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MECHANICAL ANCHORS
STRENGTH DESIGN (SD)
Tension and Shear Design Strengths for Wood-Knocker II+ Insert Installed in the Soffit of Form Poured Concrete and Roof Assemblies - Uncracked Concrete1,2,3,4,5,6
Nominal Anchor Diameter
1/4 3/8 1/2 5/8 3/4
Embed. Depth
hef (in.)
1-3/4 1-3/4 1-3/4 1-3/4 1-3/4
f'c = 3,000 psi
Nn
Tension (lbs.)
Vn
Shear (lbs.)
2,665
2,420
2,665
2,420
2,665
2,420
2,665
2,665
2,665
2,665
Minimum Concrete Compressive Strength
f'c = 4,000 psi
Nn
Tension (lbs.)
Vn
Shear (lbs.)
3,075
2,795
3,075 3,075 3,075
2,795 2,795 3,075
3,075
3,075
- Anchor Pullout/Pryout strength Controls - Concrete Breakout strength Controls - steel strength Controls
f'c = 6,000 psi
Nn
Tension (lbs.)
Vn
Shear (lbs.)
3,765
3,425
3,765
3,425
3,765
3,425
3,765
3,765
3,765
3,765
Tension and Shear Design Strengths for Wood-Knocker II+ Insert Installed in the Soffit of Form Poured Concrete and Roof Assemblies - Cracked Concrete1,2,3,4,5,6
Nominal Anchor Diameter
Embed. Depth
hef (in.)
f'c = 3,000 psi
Nn
Tension (lbs.)
Vn
Shear (lbs.)
Minimum Concrete Compressive Strength
f'c = 4,000 psi
Nn
Tension (lbs.)
Vn
Shear (lbs.)
1/4
1-3/4
2,130
1,730
2,460
2,000
3/8
1-3/4
2,130
1,730
2,460
2,000
1/2
1-3/4
2,130
1,730
2,460
2,000
5/8
1-3/4
2,130
2,130
2,460
2,460
3/4
1-3/4
2,130
2,130
2,460
2,460
- Anchor Pullout/Pryout strength Controls - Concrete Breakout strength Controls - steel strength Controls
f'c = 6,000 psi
Nn
Tension (lbs.)
Vn
Shear (lbs.)
3,015
2,445
3,015
2,445
3,015
2,445
3,015
3,015
3,015
3,015
1- Tabular values are provided for illustration and are applicable for single anchors installed in normal-weight concrete with minimum slab thickness, ha = hmin, and with the following conditions: - ca1 is greater than or equal to the critical edge distance, cac. - ca2 is greater than or equal to 1.5 times ca1.
2- Calculations were performed following methodology in ACI 318-14 Chapter 17 or ACI 318-11 Appendix D. The load level corresponding to the failure mode listed [steel strength of insert (Nsa,insert, Vsa,insert), concrete breakout strength, or pryout strength] must be checked against the tabulated steel strength of the corresponding threaded rod type, (Nsa,rod, Vsa,rod), the lowest load level controls.
3- strength reduction factors shall be taken from ACI 318-14 17.3.3 or ACI 318-11 D.4.3 for cast-in headed anchors. Condition B is assumed. strength reduction factors for load combinations in accordance with ACI 318-14 section 5.3 or ACI 318-11 section 9.2 governed by steel strength of the insert are taken as 0.70 for tension and 0.60 for shear; values correspond to brittle steel elements.
4- Tabular values are permitted for short-term static loads only, seismic loading is not considered with these tables.
5- For designs that include combined tension and shear, the interaction of tension and shear loads must be calculated in accordance with ACI 318-14 Chapter 17 or ACI 318-11 Appendix D.
6- Interpolation is not permitted to be used with the tabular values. For intermediate base material compressive strengths please see ACI 318-14 Chapter 17 or ACI 318-11 Appendix D and information contained in this product supplement. For other design conditions including seismic considerations please see ACI 318-14 Chapter 17 or ACI 318-11 Appendix D.
Tension and Shear Design Strength of Steel Elements (Steel Strength)1,2,3,4
Steel Elements - Threaded Rod
Nominal Rod Diameter (in. or No.)
ASTM A36 and ASTM F1554 Grade 36
Nsa,rod
Tension (lbs.)
Vsa,rod
Shear (lbs.)
ASTM A193 Grade B7 and ASTM F1554 Grade 105
Nsa,rod
Tension (lbs.)
Vsa,rod
Shear (lbs.)
1/4
1,390
720
3,000
1,550
3/8
3,395
1,750
7,315
3,780
1/2
6,175
3,210
13,315
6,915
5/8
9,835
5,115
21,190
11,020
3/4
14,550
7,565
31,405
16,305
- steel strength Controls
1. steel tensile design strength according to ACI 318 Appendix D and ACI 318 Chapter 17, Nsa = · Ase,N · futa
2. The tabulated steel design strength in tension for the threaded rod must be checked against the design strength of the steel insert, concrete breakout and pullout design strength to determine the controlling failure mode, the lowest load level controls.
3. steel shear design strength according to ACI 318 Appendix D and ACI 318 Chapter 17, Nsa = · 0.60 · Ase,N · futa
4. The tabulated steel design strength in shear for the threaded rod must be checked against the design strength of the steel insert, concrete breakout and pryout design strength to determine the controlling failure mode, the lowest load level controls
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MECHANICAL ANCHORS
ORDERING INFORMATION
ORDERING INFORMATION
Wood-Knocker®II+ Form Insert (UNC)
Cat No.
Description
Color Code
Std. Box
PFM2521100 PFM2521150 PFM2521200 PFM2521250 PFM2521300 PFM2521350
1/4" Wood-Knocker II+ Insert 3/8" Wood-Knocker II+ Insert 1/2" Wood-Knocker II+ Insert 5/8" Wood-Knocker II+ Insert 3/4" Wood-Knocker II+ Insert 3/8"-1/2" Wood-Knocker II+ Multi Insert
Brown
100
Green
100
Yellow
100
red
100
Purple
100
Gray
100
Threaded Inserts are color coded to easily identify location and diameter of the internally threaded coupling, allowing multiple trades on the same job to suspend their systems with various size steel threaded rods.
Wood-Knocker®II+ Form Insert (UNC) with no nails
Cat No.
Description
Color Code
PFM2521100NN PFM2521150NN PFM2521200NN PFM2521250NN PFM2521300NN PFM2521350NN
1/4" Wood-Knocker II+ Insert with no nails 3/8" Wood-Knocker II+ Insert with no nails 1/2" Wood-Knocker II+ Insert with no nails 5/8" Wood-Knocker II+ Insert with no nails 3/4" Wood-Knocker II+ Insert with no nails 3/8-1/2" Wood-Knocker II+ Multi Insert with no nails
Brown Green Yellow red Purple Gray
Wood-Knocker II+ Form Inserts with no nails must be mount/screwed to the concrete form work (screws not included).
Std. Box 100 100 100 100 100 100
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