Product Overview
TECHNICAL GUIDE – MECHANICAL ANCHORS ©2021 DEWALT – REV. A
A
NCHORS & FASTENERS
PERFORMANCE DATA
Mechanical anchors
2
PERFORMANCE DATA
Ultimate and Allowable Load Capacities for Zamac Nailin in Normal-Weight Concrete
1,2,3,4,5
Nominal
Anchor
Diameter
d
in.
Min.
Embed.
Depth
in.
(mm)
Minimum Concrete Compressive Strength, f 'c
2,000 psi 4,000 psi 6,000 psi
Tension Shear Tension Shear Tension Shear
Ultimate
lbs.
(kN)
Allowable
lbs.
(kN)
Ultimate
lbs.
(kN)
Allowable
lbs.
(kN)
Ultimate
lbs.
(kN)
Allowable
lbs.
(kN)
Ultimate
lbs.
(kN)
Allowable
lbs.
(kN)
Ultimate
lbs.
(kN)
Allowable
lbs.
(kN)
Ultimate
lbs.
(kN)
Allowable
lbs.
(kN)
3/16
3/4
(19)
285
(1.3)
70
(0.3)
415
(1.8)
105
(0.5)
400
(1.8)
100
(0.4)
560
(2.5)
140
(0.6)
480
(2.1)
120
(0.5)
560
(2.5)
140
(0.6)
1/4
5/8
(16)
410
(1.8)
105
(0.5)
440
(2.0)
110
(0.5)
580
(2.6)
145
(0.6)
655
(2.9)
165
(0.7)
580
(2.6)
145
(0.6)
655
(2.9)
165
(0.7)
3/4
(19)
540
(2.4)
135
(0.6)
600
(2.7)
150
(0.7)
765
(3.4)
190
(0.8)
850
(3.8)
215
(1.0)
800
(3.6)
200
(0.9)
850
(3.8)
215
(1.0)
1
(25)
620
(2.8)
155
(0.7)
640
(2.8)
160
(0.7)
875
(3.9)
220
(1.0)
890
(4.0)
225
(1.0)
895
(4.0)
225
(1.0)
890
(4.0)
225
(1.0)
1-1/4
(32)
700
(3.1)
175
(0.8)
720
(3.2)
180
(0.8)
990
(4.4)
250
(1.1)
970
(4.3)
245
(1.1)
990
(4.4)
250
(1.1)
990
(4.4)
250
(1.1)
1. Tabulated load values are for anchors installed in concrete. Concrete compressive strength must be at the specified minimum at the time of installation.
2. Allowable load capacities listed are calculated using and applied safety factor of 4.0. Anchors are not recommended for use overhead or for life safety. Consideration of safety factors of 20 or
higher may be necessary depending upon the application such as in sustained tensile loading applications.
3. Linear interpolation may be used to determine allowable loads for anchors at intermediate embedment depths and compressive strengths.
4. The tabulated load values are applicable to single anchors installed at critical edge and spacing distances. Allowable load capacities are multiplied by reduction factors when anchor spacing or
edge distances are less than critical distances.
5. Anchors installed flush with face or end of concrete surface.
Ultimate and Allowable Load Capacities for Zamac Nailin in Hollow Concrete Masonry
1,2,3
Nominal
Anchor
Diameter
d
in.
Minimum
Embedment Depth
in.
(mm)
f´m ≥ 1,500 psi (10.4 MPa)
Ultimate Load Allowable Load
Tension
lbs.
(kN)
Shear
lbs.
(kN)
Tension
lbs.
(kN)
Shear
lbs.
(kN)
3/16
3/4
(19.1)
270
(1.2)
560
(2.5)
55
(0.2)
110
(0.5)
1/4
5/8
(15.9)
360
(1.6)
655
(2.9)
70
(0.3)
130
(0.6)
3/4
(19.1)
735
(3.3)
850
(3.8)
145
(0.7)
170
(0.8)
1
(25.4)
835
(3.8)
890
(4.0)
165
(0.7)
180
(0.8)
1-1/4
(31.7)
990
(4.4)
970
(4.3)
200
(0.9)
195
(0.9)
1. Tabulated load values are for anchors installed in minimum 6-inch wide, minimum Grade N, Type II, lightweight, medium-weight or normal-weight concrete masonry units conforming to ASTM
C 90. Mortar must be minimum Type N. Masonry compressive strength must be at the specified minimum at the time of installation (f’m ≥ 1,500 psi). Hollow masonry cells may also be
grouted or solid.
2. Allowable load capacities listed are calculated using and applied safety factor of 5.0. Anchors are not recommended for use overhead or for life safety. Consideration of safety factors of 20 or
higher may be necessary depending upon the application such as in sustained tensile loading applications.
3. Anchors installed flush with face or end of masonry surface.
Ultimate and Allowable Load Capacities for Zamac Nailin in Solid or Hollow Clay Brick Masonry
1,2,3
Nominal
Anchor
Diameter
d
in.
Minimum
Embedment Depth
in.
(mm)
f´m ≥ 1,500 psi (10.4 MPa)
Ultimate Load Allowable Load
Tension
lbs.
(kN)
Shear
lbs.
(kN)
Tension
lbs.
(kN)
Shear
lbs.
(kN)
3/16
3/4
(19.1)
460
(2.1)
550
(2.5)
90
(0.4)
110
(0.5)
1/4
5/8
(15.9)
570
(2.6)
750
(3.3)
115
(0.5)
150
(0.7)
3/4
(19.1)
790
(3.6)
840
(3.7)
160
(0.7)
170
(0.8)
1
(25.4)
820
(3.7)
840
(3.7)
165
(0.7)
170
(0.8)
1-1/4
(31.7)
865
(3.9)
840
(3.7)
175
(0.8)
170
(0.8)
1. Tabulated load values are for anchors installed in multiple wythe, minimum Grade SW, solid clay brick masonry walls conforming to ASTM C 62. Mortar must be minimum Type N. Masonry
compressive strength must be at the specified minimum at the time of installation (f’m ≥ 1,500 psi).
2. Allowable load capacities listed are calculated using and applied safety factor of 5.0. Anchors are not recommended for use overhead or for life safety. Consideration of safety factors of 20 or
higher may be necessary depending upon the application such as in sustained tensile loading applications.
3. Anchors installed flush with face or end of masonry surface.