Purchase Concrete Machine Screw Anchors
Technical Information:
The machine screw anchor has two parts: the sleeve and the internal threaded cone. Both parts of the completed unit are made from a rust-proof material called Zamak. The machine screw anchor requires the use of a setting tool. Each diameter machine screw anchor has its own unique setting tool.
Machine Screw Anchor concrete anchor/fastener - Approvals:
Meets G.S.A. Specifications FF-S-325, Group
I, Type 1, Class 1.
Machine Screw Anchor concrete anchor/fastener - Applications:
Light to medium-duty into concrete, brick or block.
Machine Screw Anchor concrete anchor/fastener - Installation:
- Using a hammer drill and properly sized carbide-tipped masonry bit, drill a hole into the base material.
- Clear hole of all debris.
- Insert the threaded cone end of the machine screw anchor into the hole.
- Insert the setting tool into the anchor. Using a hammer, hit the setting tool until the anchor is set.
- Set the fixture to be fastened over the anchor and insert a machine threaded bolt through the fixture and into the anchor.
Machine Screw Anchor concrete anchor/fastener -
Bolt
Length:
The length of the machine bolt required is equal to the thickness of the material to be fastened plus the machine screw anchor
length.
Machine Screw Anchor concrete anchor/fastener -
Anchor Spacing:
The forces on a Machine Screw Anchor are transferred
to the base material in which it is installed. If the anchors
are installed too close together, it can cause an interaction
of the forces, thus reducing the holding power of the anchors.
As a rule of thumb, the expansion industry has established
a minimum standard of ten (10) anchor diameters for spacing
between anchors and five (5) anchor diameters from an unsupported edge.
When vibration or sudden impact are part of the load conditions,
spacing between anchors should be increased.
Machine Screw Anchor concrete anchor/fastener -
Technical Data
| Anchor Size |
Anchor Length |
Hole Size |
Pull-Out 3000 psi concrete |
| #10 |
5/8" |
3/8" |
1320 lb. |
| 1/4" |
7/8" |
1/2" |
2332
lb. |
| 5/16" |
1" |
5/8" |
3014
lb. |
| 3/8" |
1-1/4" |
3/4" |
4796
lb. |
| 1/2" |
1-1/2" |
7/8" |
5918
lb. |
| 5/8" |
1-3/4" |
1-1/8" |
7200
lb. |
| 3/4" |
2-1/4" |
1-1/4" |
11,22
lb. |
Values shown are average ultimate values and are offered only
as a guide and are not guaranteed. A safety factor of 4:1 or
25% is generally accepted as a safe working load. Reference
should be made to applicable codes for the specific working
ratio.