DEWALT 316 Stainless Steel Wedge-Bolt™ Screw Anchor
Technical Guide
General Information
Product Description: The 316 Stainless Steel Wedge-Bolt anchor is a one-piece, heavy-duty screw anchor with a finished hex head. It is simple to install, easy to identify, fully removable, and vibration resistant. The anchor's steel threads self-tap into the hole during installation, providing positive keyed engagement, leading to higher load capacities for designers and ease of installation for users. It can be installed with a powered impact wrench or a conventional hand socket.
The 316 Stainless Steel Wedge-Bolt screw anchors are designed for use with a matched tolerance Wedge-Bit for optimum performance. They are suitable for fixture clearance holes that are 1/16" over nominal, typical for steel fabrication. These anchors are not recommended for immersion or long-term exposure to chloride/chlorine environments.
General Applications and Uses:
- Interior and Exterior Applications
- Support Ledgers and Windows
- Railing and Fencing
- Storage Facilities
- Repairs & Retrofits
- Maintenance
Features and Benefits:
- High corrosion resistance of Type 316 stainless steel.
- Consistent performance in high and low strength concrete.
- Can be installed through standard size fixture holes in steel.
- Diameter, length, and identifying marking stamped on the head of each anchor.
- Can be installed with an impact wrench or conventional hand socket.
- Fast installation and immediate loading minimizes downtime.
- Finished hex head provides attractive appearance and minimizes tripping hazard.
- Can be installed closer to the edge than traditional expansion anchors.
- Ratchet teeth on the underside of the hex washer head contact against the fixture.
- Removable.
Approvals and Listings:
- Tested in accordance with ASTM E488.
Guide Specifications:
CSI Divisions: 03 16 00 - Concrete Anchors, 04 05 19.16 - Masonry Anchors and 05 05 19 - Post-Installed Concrete Anchors. Screw anchors shall be 316 Stainless Steel Wedge-Bolt as supplied by DEWALT, Towson, MD. Anchors shall be installed in accordance with published instructions and the Authority Having Jurisdiction.
Material Specifications
| Anchor Component | Specification |
|---|---|
| Anchor Body and Hex Washer Head | Type 316 Stainless Steel1 |
| 1 With sacrificial carbon steel drive tip and tapping threads. | |
Installation Instructions
Step 1: Using the proper Wedge-bit size, drill a hole into the base material to the required depth. The tolerances of the Wedge-bit used must meet the requirements of the published Wedge-bit range.
Step 2: Remove dust and debris from the hole during drilling (e.g., dust extractor) or following drilling (e.g., suction, forced air) to extract loose particles created by drilling.
Step 3: Select a powered impact wrench that does not exceed the maximum torque (Tinst,max or Timpact,max) for the selected anchor diameter. Attach an appropriate sized hex socket/driver to the impact wrench. Mount the screw anchor head into the socket.
Step 4: Drive the anchor through the fixture and into the hole until the head of the anchor comes into contact with the fixture. The anchor should be snug after installation. Do not spin the hex socket off the anchor to disengage.
316 Stainless Steel Wedge-Bolt Anchor Detail
Nomenclature:
- da = Diameter of Anchor
- dbit = Diameter of Drill Bit
- dh = Diameter of Clearance Hole
- h = Base Material Thickness. The value of h should be 1.5hnom or 3", whichever is greater.
- hnom = Minimum Nominal Embedment
- ho = Minimum Hole Depth
Hex Head Marking
The hex head marking indicates diameter, material, and length identification.
Matched Tolerance System
The system comprises a Hex Head Serrated Washer, Dual Thread Profile, and a Blue Marking Drive Tip. The Wedge-Bit is designed and tested as a system for consistency and reliability.
Installation Specifications
Installation Specifications for 316 Stainless Steel Wedge-Bolt in Concrete
| Anchor Property / Setting Information | Notation | Units | Nominal Anchor Diameter | ||
|---|---|---|---|---|---|
| 1/4 | 3/8 | 1/2 | |||
| Anchor diameter | da | in. (mm) | 0.250 (6.4) | 0.375 (9.5) | 0.500 (12.7) |
| Minimum diameter of hole clearance in fixture | dh | in. (mm) | 5/16 (7.9) | 7/16 (11.1) | 9/16 (14.3) |
| Nominal drill bit diameter | dbit | in. | 1/4 Wedge-Bit | 3/8 Wedge-Bit | 1/2 Wedge-Bit |
| Minimum nominal embedment depth | hnom | in. (mm) | 1-3/4 (44) | 2 (51) | 2-3/4 (70) |
| Minimum hole depth | ho | in. (mm) | 2 (51) | 2-1/4 (57) | 3 (77) |
| Minimum overall anchor length | lanch | in. (mm) | 2 (51) | 2-1/2 (64) | 3 (76) |
| Max installation torque | Tinst,max | ft.-lbf. (N-m) | 15 (20) | 35 (47) | 60 (81) |
| Max impact wrench power (torque) | Timpact,max | ft.-lbf. (N-m) | 115 (156) | 245 (332) | 300 (407) |
| Torque wrench/socket size | - | in. | 7/16 | 9/16 | 3/4 |
| Head height | - | in. | 7/32 | 21/64 | 7/16 |
| Nominal washer diameter | - | in. | 37/64 | 3/4 | 1-1/16 |
| Ultimate tensile strength | (UTS) | ksi | 80 | 100 | 100 |
| Approximate yield strength | (YS) | ksi | 64 | 80 | 80 |
For SI: 1 inch = 25.4 mm, 1 ft-lbf = 1.356 N-m.
Performance Data (ASD)
Ultimate Load Capacities for 316 Stainless Steel Wedge-Bolt in Normal-Weight Concrete
| Nominal Anchor Diameter | Minimum Embedment Depth, hnom | f'c = 2,500 psi (17.3 MPa) | f'c = 3,000 psi (20.7 MPa) | f'c = 4,000 psi (27.6 MPa) | f'c = 6,000 psi (41.4 MPa) | f'c = 8,000 psi (55.2 MPa) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | ||
| 1/4 | 1-3/4 (44) | 890 (4.0) | 1,385 (6.2) | 975 (4.3) | 1,520 (6.8) | 1,130 (5.0) | 1,755 (7.8) | 1,440 (6.4) | 2,560 (11.4) | 1,440 (6.4) | 2,850 (12.7) |
| 2-1/2 (64) | 2,485 (11.1) | 1,385 (6.2) | 2,720 (12.1) | 1,520 (6.8) | 3,145 (14.0) | 1,755 (7.8) | 3,150 (14.0) | 2,560 (11.4) | 3,150 (14.0) | 2,850 (12.7) | |
| 2 (51) | 735 (3.3) | 1,675 (7.5) | 805 (3.6) | 1,833 (8.2) | 930 (4.1) | 2,115 (9.4) | 1,180 (5.2) | 2,710 (12.1) | 1,210 (5.4) | 3,295 (14.7) | |
| 3/8 | 2-1/2 (64) | 1,515 (6.7) | 1,675 (7.5) | 1,655 (7.4) | 1,833 (8.2) | 1,915 (8.5) | 2,115 (9.4) | 2,130 (9.5) | 2,710 (12.1) | 2,180 (9.7) | 3,295 (14.7) |
| 3-1/2 (89) | 3,525 (15.7) | 1,675 (7.5) | 3,860 (17.2) | 1,833 (8.2) | 4,455 (19.8) | 2,115 (9.4) | 4,570 (20.3) | 2,710 (12.1) | 4,680 (20.8) | 3,295 (14.7) | |
| 2-3/4 (70) | 3,000 (13.3) | 4,675 (20.8) | 3,285 (14.6) | 5,120 (22.8) | 3,790 (16.9) | 5,915 (26.3) | 5,975 (26.6) | 7,560 (33.6) | 6,900 (30.7) | 9,205 (40.9) | |
| 1/2 | 3-1/2 (89) | 3,830 (17.0) | 5,205 (23.2) | 4,195 (18.7) | 5,700 (25.4) | 4,845 (21.6) | 6,590 (29.3) | 6,800 (30.2) | 7,390 (32.9) | 7,855 (34.9) | 8,995 (40.0) |
| 4-1/2 (114) | 5,680 (25.3) | 5,205 (23.2) | 6,220 (27.7) | 5,700 (25.4) | 7,180 (31.9) | 6,590 (29.3) | 9,760 (43.4) | 7,390 (32.9) | 11,265 (50.1) | 8,995 (40.0) | |
| 2-3/4 (70) | 3,000 (13.3) | 4,675 (20.8) | 3,285 (14.6) | 5,120 (22.8) | 3,790 (16.9) | 5,915 (26.3) | 5,975 (26.6) | 7,560 (33.6) | 6,900 (30.7) | 9,205 (40.9) | |
1. Tabulated load values are for anchors installed in uncracked normal weight concrete. Concrete compressive strength must be at a minimum at the time of installation.
2. Ultimate load capacities must be reduced by a minimum safety factor of 4.0 or greater to determine allowable working load.
Allowable Load Capacities for 316 Stainless Steel Wedge-Bolt in Normal-Weight Concrete
| Nominal Anchor Diameter | Minimum Embedment Depth, hnom | f'c = 2,500 psi (17.3 MPa) | f'c = 3,000 psi (20.7 MPa) | f'c = 4,000 psi (27.6 MPa) | f'c = 6,000 psi (41.4 MPa) | f'c = 8,000 psi (55.2 MPa) | |||||
|---|---|---|---|---|---|---|---|---|---|---|---|
| Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | ||
| 1/4 | 1-3/4 (44) | 225 (1.0) | 345 (1.5) | 245 (1.1) | 380 (1.7) | 285 (1.3) | 440 (2.0) | 360 (1.6) | 640 (2.8) | 360 (1.6) | 715 (3.2) |
| 2-1/2 (64) | 620 (2.8) | 345 (1.5) | 680 (3.0) | 380 (1.7) | 785 (3.5) | 440 (2.0) | 790 (3.5) | 640 (2.8) | 790 (3.5) | 715 (3.2) | |
| 2 (51) | 185 (0.8) | 420 (1.9) | 200 (0.9) | 460 (2.0) | 235 (1.0) | 530 (2.4) | 295 (1.3) | 680 (3.0) | 305 (1.4) | 825 (3.7) | |
| 3/8 | 2-1/2 (64) | 380 (1.7) | 420 (1.9) | 415 (1.8) | 460 (2.0) | 480 (2.1) | 530 (2.4) | 535 (2.4) | 680 (3.0) | 545 (2.4) | 825 (3.7) |
| 3-1/2 (89) | 880 (3.9) | 420 (1.9) | 965 (4.3) | 460 (2.0) | 1,115 (5.0) | 530 (2.4) | 1,145 (5.1) | 680 (3.0) | 1,170 (5.2) | 825 (3.7) | |
| 2-3/4 (70) | 750 (3.3) | 1,170 (5.2) | 820 (3.6) | 1,280 (5.7) | 950 (4.2) | 1,480 (6.6) | 1,495 (6.7) | 1,890 (8.4) | 1,725 (7.7) | 2,300 (10.2) | |
| 1/2 | 3-1/2 (89) | 960 (4.3) | 1,300 (5.8) | 1,050 (4.7) | 1,425 (6.3) | 1,210 (5.4) | 1,650 (7.3) | 1,700 (7.6) | 1,850 (8.2) | 1,965 (8.7) | 2,250 (10.0) |
| 4-1/2 (114) | 1,420 (6.3) | 1,300 (5.8) | 1,555 (6.9) | 1,425 (6.3) | 1,795 (8.0) | 1,650 (7.3) | 2,440 (10.9) | 1,850 (8.2) | 2,815 (12.5) | 2,250 (10.0) | |
| 2-3/4 (70) | 750 (3.3) | 1,170 (5.2) | 820 (3.6) | 1,280 (5.7) | 950 (4.2) | 1,480 (6.6) | 1,495 (6.7) | 1,890 (8.4) | 1,725 (7.7) | 2,300 (10.2) | |
1. Tabulated load values are for anchors installed in uncracked normal weight concrete. Concrete compressive strength must be at a minimum at the time of installation.
2. Allowable load capacities are calculated using an applied safety factor of 4.0.
3. Allowable load capacities must be multiplied by reduction factors when anchor spacing or edge distances are less than critical distances.
4. Linear interpolation may be used to determine allowable loads for intermediate embedments and compressive strengths.
5. Allowable loads for lightweight concrete may be determined by multiplying the tabulated allowable load capacities for normal weight concrete by 0.60.
Load Adjustment Factors for Spacing and Edge Distances
Allowable load values are multiplied by reduction factors when anchor spacing or edge distances are less than critical distances. Linear interpolation is allowed. Spacing and edge reduction factors must be combined (multiplied) if both are affected.
Anchor Installed in Normal-Weight Concrete
| Anchor Dimension | Load Type | Critical Distance (Full Anchor Capacity) | Minimum Distance (Reduced Capacity) | ||
|---|---|---|---|---|---|
| Critical Load Factor | Minimum Load Factor | ||||
| Spacing (s) | Tension | scr = 12d FNS = 1.0 | smin = 4d FNS = 0.50 | ||
| Shear | scr = 12d FVS = 1.0 | smin = 4d FVS = 0.75 | |||
| Edge Distance (c) | Tension | ccr = 8d FNC = 1.0 | cmin = 3d FNC = 0.70 | ||
| Shear | ccr = 12d FVC = 1.0 | cmin = 3d FVC = 0.15 | |||
Spacing Adjustment Factors for Normal-Weight Concrete
| Dia. (in.) | Spacing, s (inches) | Spacing, Tension (FNS) | Spacing, s (inches) | Spacing, Shear (FVS) | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 1-1/2 | 2 | 2-1/2 | 3 | 4-1/2 | 6 | ||||||||
| 1/4 | 0.50 | 0.63 | 0.75 | 0.88 | 1.00 | 1.00 | 1.00 | 0.75 | 0.81 | 0.88 | 0.91 | 1.00 | 1.00 | 1.00 |
| 3/8 | 0.50 | 0.58 | 0.67 | 0.81 | 1.00 | 1.00 | 1.00 | 0.75 | 0.79 | 0.83 | 0.88 | 1.00 | 1.00 | 1.00 |
| 1/2 | 0.50 | 0.56 | 0.63 | 0.75 | 1.00 | 1.00 | 1.00 | 0.75 | 0.75 | 0.78 | 0.78 | 0.91 | 1.00 | 1.00 |
Notes: For anchors loaded in tension, the critical spacing (scr) is equal to 12 anchor diameters (12d) at which the anchor achieves 100% of load. Minimum spacing (smin) is equal to 4 anchor diameters (4d) at which the anchor achieves 50% of load.
Notes: For anchors loaded in shear, the critical spacing (scr) is equal to 12 anchor diameters (12d) at which the anchor achieves 100% of load. Minimum spacing (smin) is equal to 4 anchor diameters (4d) at which the anchor achieves 75% of load.
Edge Distance Adjustment Factors for Normal-Weight Concrete
| Dia. (in.) | Edge Distance, c (in.) | Edge Distance, Tension (FNC) | Edge Distance, c (in.) | Edge Distance, Shear (FVC) | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 3/4 | 1-1/8 | 1-1/2 | 1-7/8 | 2 | 2-1/4 | 3 | 4 | |||||||||
| 1/4 | 0.70 | 0.79 | 0.88 | 0.97 | 1.00 | 1.00 | 1.00 | 1.00 | 0.15 | 0.29 | 0.43 | 0.58 | 0.72 | 1.00 | 1.00 | 1.00 |
| 3/8 | 0.70 | 0.70 | 0.76 | 0.82 | 0.84 | 0.88 | 1.00 | 1.00 | 0.15 | 0.15 | 0.24 | 0.34 | 0.43 | 0.62 | 1.00 | 1.00 |
| 1/2 | 0.70 | 0.70 | 0.70 | 0.75 | 0.76 | 0.79 | 0.88 | 1.00 | 0.15 | 0.15 | 0.15 | 0.22 | 0.29 | 0.43 | 0.72 | 1.00 |
Notes: For anchors loaded in tension, the critical edge distance (ccr) is equal to 8 anchor diameters (8d) at which the anchor achieves 100% of load. Minimum edge distance (cmin) is equal to 3 anchor diameters (3d) at which the anchor achieves 70% of load.
Notes: For anchors loaded in shear, the critical edge distance (ccr) is equal to 12 anchor diameters (12d) at which the anchor achieves 100% of load. Minimum edge distance (cmin) is equal to 3 anchor diameters (3d) at which the anchor achieves 15% of load.
Masonry Performance Data
Ultimate Load Capacities for 316 Stainless Steel Wedge-Bolt installed into the Face or End of Grout Filled Concrete Masonry
| Nominal Anchor Diameter d | Minimum Embed. hnom | Minimum Edge Distance | Minimum End Distance | Tension lbs. (kN) | Shear lbs. (kN) | Loading Direction | ||
|---|---|---|---|---|---|---|---|---|
| f'm = 1,500 psi | f'm = 2,000 psi | f'm = 1,500 psi | f'm = 2,000 psi | |||||
| 1/4 | 1-3/4 (44) | 1-1/2 (38) | 3-3/4 (95) | 570 (2.5) | 660 (2.9) | 645 (2.9) | 745 (3.3) | Perpendicular or parallel to wall edge or end |
| 2-1/4 (57) | 1-1/2 (38) | 3-3/4 (95) | 1,145 (5.1) | 1,325 (5.9) | 910 (4.0) | 1,050 (4.7) | Perpendicular or parallel to wall edge or end | |
| 2 | 3-3/4 (95) | 1-1/2 (38) | 1,535 (6.8) | 1,775 (7.9) | 775 (3.4) | 895 (4.0) | Perpendicular or parallel to wall edge or end | |
| 3/8 | 3 (76) | 3-3/4 (95) | 3-3/4 (95) | 3,110 (13.8) | 3,585 (15.9) | 2,300 (10.2) | 2,655 (11.8) | Perpendicular or parallel to wall edge or end |
| 3 (76) | 3-3/4 (95) | 11-1/4 (286) | 3,325 (14.8) | 3,835 (17.1) | - | - | Parallel to wall edge | |
| 1/2 | 2-3/4 (70) | 1-3/4 (44) | 3-3/4 (95) | 2,050 (9.1) | 2,365 (10.5) | 1,330 (5.9) | 1,535 (6.8) | Perpendicular or parallel to wall edge or end |
| 4-1/2 (114) | 3-3/4 (95) | 11-1/4 (286) | 4,680 (20.8) | 5,400 (24.0) | 2,630 (11.7) | 3,040 (13.5) | Perpendicular or parallel to wall edge or end | |
| - | 4-1/2 (114) | 11-1/4 (286) | 11-1/4 (286) | 7,290 (32.4) | 8,415 (37.4) | 2,630 (11.7) | 3,040 (13.5) | - |
1. Tabulated load values are for anchors installed in minimum 8-inch wide, Grade N, Type II, normal-weight concrete masonry units conforming to ASTM C 90 that have reached the minimum designated ultimate strength at the time of installation (f'm ≥ 1,500 psi).
2. Ultimate load capacities must be reduced by a minimum safety factor of 5.0 or greater to determine allowable working load.
3. The tabulated load values are applicable for screw anchors installed at a critical spacing between screw anchors of 16 times the screws anchor diameter. Reduce the tabulated load capacities by 50 percent when anchors are installed at a minimum spacing between screw anchors of 8 times the screw anchor diameter. Linear interpolation may be used for intermediate spacing distances.
Allowable Load Capacities for 316 Stainless Steel Wedge-Bolt installed into the Face or End of Grout Filled Concrete Masonry
| Nominal Anchor Diameter d | Minimum Embed. hnom | Minimum Edge Distance | Minimum End Distance | Tension lbs. (kN) | Shear lbs. (kN) | Loading Direction | ||
|---|---|---|---|---|---|---|---|---|
| f'm = 1,500 psi | f'm = 2,000 psi | f'm = 1,500 psi | f'm = 2,000 psi | |||||
| 1/4 | 1-3/4 (44) | 1-1/2 (38) | 3-3/4 (95) | 115 (0.5) | 130 (0.6) | 130 (0.6) | 150 (0.7) | Perpendicular or parallel to wall edge or end |
| 2-1/4 (57) | 1-1/2 (38) | 3-3/4 (95) | 230 (1.0) | 265 (1.2) | 180 (0.8) | 210 (0.9) | Perpendicular or parallel to wall edge or end | |
| 2 | 3-3/4 (95) | 1-1/2 (38) | 305 (1.4) | 355 (1.6) | 155 (0.7) | 180 (0.8) | Perpendicular or parallel to wall edge or end | |
| 3/8 | 3 (76) | 3-3/4 (95) | 3-3/4 (95) | 620 (2.8) | 715 (3.2) | 460 (2.0) | 530 (2.4) | Perpendicular or parallel to wall edge or end |
| 3 (76) | 3-3/4 (95) | 11-1/4 (286) | 665 (3.0) | 765 (3.4) | - | - | Parallel to wall edge | |
| 1/2 | 2-3/4 (70) | 1-3/4 (44) | 3-3/4 (95) | 410 (1.8) | 475 (2.1) | 265 (1.2) | 305 (1.4) | Perpendicular or parallel to wall edge or end |
| 4-1/2 (114) | 3-3/4 (95) | 11-1/4 (286) | 935 (4.2) | 1,080 (4.8) | 525 (2.3) | 610 (2.7) | Perpendicular or parallel to wall edge or end | |
| - | 4-1/2 (114) | 11-1/4 (286) | 11-1/4 (286) | 1,460 (6.5) | 1,685 (7.5) | 525 (2.3) | 610 (2.7) | - |
1. Tabulated load values are for anchors installed in minimum 8-inch wide, Grade N, Type II, normal-weight concrete masonry units conforming to ASTM C 90 that have reached the minimum designated ultimate strength at the time of installation (f'm ≥ 1,500 psi).
2. Allowable load capacities are calculated using an applied safety factor of 5.0. Consideration of safety factors of 10 or higher may be necessary depending on the application, such as life safety.
3. Linear interpolation for allowable loads for anchors at intermediate embedment depths may be used.
4. For installation in 3,000 psi grout filled concrete masonry (f'm = 3,000 psi) the load capacity in 1,500 psi grout filled concrete masonry (f'm = 1,500) may be increased by 40% and the load capacity in 2,000 psi grout concrete masonry (f'm = 2,000 psi) may be increased by 22%.
5. The tabulated load values are applicable for screw anchors installed at a critical spacing between screw anchors of 16 times the screws anchor diameter. Reduce the tabulated load capacities by 50 percent when anchors are installed at a minimum spacing between screw anchors of 8 times the screw anchor diameter. Linear interpolation may be used for intermediate spacing distances.
Ultimate and Allowable Load Capacities for 316 Stainless Steel Wedge-Bolt Installed in Grout Filled Concrete Masonry Wall Tops
| Nominal Anchor Diameter d | Minimum Nominal Embed. Depth hnom | Minimum Edge Distance | Minimum End Distance | Minimum Spacing Distance | Ultimate Load | Allowable Load | ||
|---|---|---|---|---|---|---|---|---|
| Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | |||||
| 1/4 | 2-1/2 (64) | 1-1/2 (38) | 3 (76) | 4 (102) | 1,025 (4.6) | 625 (2.8) | 205 (0.9) | 125 (0.6) |
| 3/8 | 3 (76) | 1-1/2 (38) | 4 (102) | 6 (152) | 1,675 (7.5) | 1,075 (4.8) | 335 (1.5) | 215 (1.0) |
| 1/2 | 4-1/2 (114) | 1-3/4 (44) | 6 (152) | 8 (203) | 2,475 (11.0) | 1,075 (4.8) | 495 (2.2) | 215 (1.0) |
1. All values are for anchors installed in fully grouted concrete masonry wall construction with materials meeting minimum compressive strength, f'm, of 1,500 psi (10.3 MPa). Concrete masonry units must be light-, medium, or normal-weight conforming to ASTM C90. Allowable loads are based on a safety factor of 5.0.
2. Anchors may be installed in any location in the top of the masonry wall except within 1-1/4-inch from the mortar joint (head joint), provided the minimum edge and end distances are maintained.
3. A maximum of two anchors may be installed in a single masonry cell in accordance with the spacing and edge or end distance requirements. Embedment is measured from the outside surface of the concrete masonry unit to the embedded end of the anchor.
4. Spacing distance is measured from the centerline to centerline between two anchors.
5. The edge and end distance is measured from the anchor centerline to the closest unrestrained edge and end of the CMU block, respectively.
6. Allowable shear loads may be applied in any direction.
Ultimate and Allowable Load Capacities for 316 Stainless Steel Wedge-Bolt Installed into Multiple Wythe Solid Clay Brick Masonry
| Nominal Anchor Diameter d | Minimum Nominal Embed. Depth hnom | Minimum Edge Distance | Minimum End Distance | Minimum Spacing Distance | Ultimate Load | Allowable Load | ||
|---|---|---|---|---|---|---|---|---|
| Tension lbs. (kN) | Shear lbs. (kN) | Tension lbs. (kN) | Shear lbs. (kN) | |||||
| 1/4 | 2-1/2 (64) | 3-1/2 (89) | 2-1/2 (64) | 4 (102) | 1,170 (5.2) | 1,380 (6.1) | 235 (1.0) | 275 (1.2) |
| 3/8 | 2-3/4 (70) | 6 (152) | 6 (152) | 6 (152) | 1,435 (6.4) | 2,875 (12.8) | 285 (1.3) | 575 (2.6) |
| 1/2 | 3-1/4 (83) | 9-1/2 (241) | 9-1/2 (241) | 8 (203) | 1,840 (8.2) | 7,655 (34.1) | 370 (1.6) | 1,530 (6.8) |
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 as the specified minimum at the time of installation (f'm ≥ 1,500 psi).
2. Ultimate load capacities must be reduced by a minimum safety factor of 5.0 or greater to determine allowable working load.
3. Allowable load capacities listed are calculated using an applied safety factor of 5.0. Consideration of safety factors of 10 or higher may be used depending on the application, such as life safety.
Ordering Information
316 Stainless Steel Wedge-Bolt
| Cat. No. | Anchor Size (in.) | Thread Length (in.) | Pack Qty. | Carton Qty. |
|---|---|---|---|---|
| 07870-PWR | 1/4 x 2 | 1-3/4 | 100 | 600 |
| 07872-PWR | 1/4 x 3 | 2-3/4 | 100 | 500 |
| 07876-PWR | 1/4 x 4 | 2-3/4 | 100 | 500 |
| 07878-PWR | 1/4 x 5 | 2-3/4 | 100 | 500 |
| 07880-PWR | 3/8 x 2-1/2 | 2-1/4 | 50 | 300 |
| 07882-PWR | 3/8 x 3 | 2-1/4 | 50 | 250 |
| 07884-PWR | 3/8 x 4 | 3-1/2 | 50 | 250 |
| 07886-PWR | 3/8 x 5 | 3-1/2 | 50 | 250 |
| 07888-PWR | 1/2 x 3 | 2-3/4 | 50 | 150 |
| 07890-PWR | 1/2 x 4 | 2-3/4 | 50 | 150 |
| 07892-PWR | 1/2 x 5 | 3-3/4 | 25 | 100 |
| 07894-PWR | 1/2 x 6 | 3-3/4 | 25 | 75 |
The published size includes the diameter and length of the anchor measured from under the head to the tip. *316 Stainless Steel Wedge-Bolt has a blue marking and must be installed with a matched tolerance Wedge-Bit.
Wedge-Bit
| Cat. No. | Wedge-Bit Description | Usable Length | Pack Qty. | Carton Qty. |
|---|---|---|---|---|
| 01314-PWR | SDS 1/4" x 6" | 4" | 1 | 100 |
| 01315-PWR | SDS 1/4" x 8" | 6" | 1 | 200 |
| 01316-PWR | SDS 3/8" x 6" | 4" | 1 | 100 |
| 01318-PWR | SDS 3/8" x 10" | 8" | 1 | 150 |
| 01320-PWR | SDS 1/2" x 6" | 4" | 1 | 50 |
| 01322-PWR | SDS 1/2" x 10" | 8" | 1 | 50 |
Suggested Impact Wrench and Socket
| Nominal Anchor Size | Socket Size | Impact Rated Socket | 20V Max* Impact Wrenches |
|---|---|---|---|
| 1/4" | 7/16" | DW2285 | DCF923GP2 3/8" ATOMIC Compact Impact Wrench with Hog Ring Anvil |
| 3/8" | 9/16" | DW22872 | DCF921GP2 1/2" ATOMIC Compact Impact Wrench with Hog Ring Anvil |
| 1/2" | 3/4" | DW22902 | DCF891P2 1/2" Mid-Range Impact Wrench with Hog Ring Anvil |
