Helical piles (also called helical piers, helical anchor, screw piles, earth screws, etc.) are a versatile, fast, durable and cost- effective deep foundation technology.
Helical pile foundations are segmented deep foundation systems with helical bearing plates welded to a central round or square steel shaft. The load of a structure is transferred from the shaft to the soil through these bearing plates. The concept is founded on the principle of turning a screw into stable subsoil strata until the torque applied indicates that the necessary load capacity has been achieved. Helical piles work for both compression and tension loads.
The first piece of the helical pile is called the lead; this is the piece that is first rotated into the ground. The lead has multiple helical blades, also referred to as helical bearing plates, that can vary in size, shape, and number. After the lead follows any number of extensions, depending on the required torque or depth. These are simply shafts that are bolted and pinned to the lead and to each other at their ends. The top of the pile is the incorporated into the foundation system via a bracket or other connection method.
The no wrench screw anchor is a type of earth anchor; it functions by basically guying cables or wires within utility poles, which is comprised of an angle-cut tip, welded helix and an anchor rod of forged-eye.
The No-Wrench Anchor can be placed with power equipment or by hand. MPS No-Wrench Anchors are made of a forged eye anchor rod with a welded helix and angle cut tip.
These anchors are ideal for use in medium dense to loose soils. Final installed height of the exposed anchor should be 8 to 12 inches above grade level. No-Wrench anchors are Hot Dip Galvanized per ASTM A123.
Screw Anchor Dimensions as follows:
| CODE NUMBER |
TYPE |
SIZE |
THREAD LENGTH |
| (inch) |
(inch) |
| 01 |
5/8 inch |
5/8*8 |
4 |
| 02 |
5/8*10 |
4 |
| 03 |
5/8*12 |
6 |
| 04 |
5/8*14 |
6 |
| 05 |
5/8*16 |
6 |
| 06 |
5/8*18 |
6 |
| 07 |
5/8*20 |
6 |
| 08 |
3/4 inch |
3/4*10 |
4 |
| 09 |
3/4*12 |
6 |
| 010 |
3/4*14 |
6 |
| 011 |
3/4*16 |
6 |
| 012 |
3/4*18 |
6 |
| 013 |
3/4*20 |
6 |
| 014 |
1 inch |
1*12 |
6 |
| 015 |
1*14 |
6 |
| 016 |
1*16 |
6 |
| 017 |
1*18 |
6 |
| 018 |
1*20 |
6 |
- Used for securing up to 3 guy wires at a utility pole.
- Anchors are installed by simply turning anchor into ground. No Wrench Anchors may be driven by hand or with power equipment.
- Eye dimensions are the same as Anchor Rods.
- Screw anchors consist of an unthreaded triple eye rod with an angled point, and a firmly welded helix.
- Hot dip galvanized to meet ASTM Specification A123.
- Holding strength per soil class for 3/4" rod:
- Soil Class 5: 6500 lbs
- Soil Class 6: 5000 lbs
- Soil Class 7: 2500 lbs
- Typical working torque is 400 ft lbs.
Material: Carbon steel C1045
Process: Forging
Surface: hot Dip Galvanized,
Packing: pallet
Standard: ASTM E488
Main Maket: Europe, Middle East, US, Australia, Canada, etc
Customized requirements are welcome!
Origin: China FOB Port: : Qingdao
Lead time: 15~45 Days
Standard: CE, ISO
The No-Wrench Anchor can be placed with power equipment or by hand. MPS No-Wrench Anchors are made of a forged eye anchor rod with a welded helix and angle cut tip.
These anchors are ideal for use in medium dense to loose soils. Final installed height of the exposed anchor should be 8 to 12 inches above grade level. No-Wrench anchors are Hot Dip Galvanized per ASTM A123.
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