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1/4 in.-20 Zamac Double Expansion Anchors, 100-Pack
Our Price:$219.94These double expansion anchors are light- to medium-duty fasteners for installers securing items to concrete, brick, or block. They provide an internally threaded anchoring point for a...
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3/8 in. x 2 in. Dual Expansion Machine Bolt Anchor, UNC, 50-Pack
Our Price:$1.64This dual expansion machine bolt anchor helps contractors and maintenance teams create removable threaded fastening points in solid concrete, block, brick, and stone. Its internally threaded design...
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Double Expansion Anchor, 1/4 in. x 1-3/8 in., UNC
Our Price:$71.99This double expansion anchor is an internally threaded fastening solution for buyers securing work in solid concrete, block, brick, or stone. Its dual-expansion design supports anchoring in base...
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Double Expansion Machine Screw Anchor, 1/2-13, Zamac Alloy, 25-Pack
Our Price:$159.94These double expansion machine screw anchors are for installers fastening into concrete, brick, or block base material. They provide an internally threaded anchor point for a machine-threaded bolt in...
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Double Expansion Machine Screw Anchors, 3/8 in.-16, 50-Pack
Our Price:$209.94These double expansion machine screw anchors are light- to medium-duty fasteners for buyers securing threaded bolts in concrete, brick, or block. They provide an internally threaded anchoring point...
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Zamac Alloy Double Expansion Anchor, 5/16-18, 100 Pack
Our Price:$259.94These double expansion anchors are for buyers securing machine-threaded bolts in concrete, brick, or block. They provide a flush-set fastening point for light- to medium-duty applications.Each...
Choose Expansion Anchors for Removable Threaded Fastening
The products represented here are double expansion, internally threaded anchors designed for machine-threaded bolts. Compare the required thread size, the base material, whether flush installation is important, and the pack quantity needed for the job.
Popular examples in this category
Create removable bolt locations
These anchors provide internally threaded points for machine-threaded bolts. The bolt can be removed when service work is needed.
Match the thread and job quantity
Select the thread size required for the machine-threaded bolt, then compare 25-, 50-, and 100-piece pack quantities for the number of fastening locations.
Use in masonry base materials
The represented anchors are intended for concrete, brick, and block. Some listed options also identify solid stone as a compatible base material.
Understand the dual-expansion design
When the bolt is installed, the anchor expands against the base material at two points. Certain options are described for base materials of questionable strength.
Dual-point designs expand against the base material at two points.
The summaries include 1/4-20, 5/16-18, 3/8-16, and 1/2-13 sizes.
Represented package quantities include 25, 50, and 100 anchors.
The listed products are described for light- to medium-duty applications.
Compare the represented expansion anchor options
Use thread size, stated base-material coverage, and pack quantity to narrow the selection.
| Product type | Thread size and quantity | Stated features and base materials |
|---|---|---|
| Double expansion anchor | 1/4-20; 100-pack | Zamac alloy, flush-set, internally threaded; concrete, brick, or block. |
| Double expansion anchor | 5/16-18; 100-pack | Zamac alloy, flush-set, internally threaded; concrete, brick, or block. |
| Double expansion machine screw or bolt anchor | 3/8-16 or 3/8 in. x 2 in.; 50-pack | Internally threaded dual expansion; concrete, brick, block, with solid stone stated for the machine bolt option. |
| Double expansion machine screw anchor | 1/2-13; 25-pack | Zamac alloy, flush-set, internally threaded; concrete, brick, or block. |
Plan the right fit before choosing
Match the anchor to the machine-threaded bolt
Internal threads are a central feature across the represented products. Choose an anchor with the needed thread size before considering pack quantity or other product differences.
- Thread sizes represented include 1/4-20, 5/16-18, 3/8-16, and 1/2-13.
- UNC options are also represented.
- Internal threading supports bolt installation and removal.
Confirm suitability for the installation surface
These expansion anchors are presented for fastening in concrete, brick, and block. Selected dual-expansion options are also described for solid stone and for base materials of questionable strength.
- Dual-point expansion occurs as the threaded bolt is installed.
- Flush-set options sit even with the base material surface after setting.
- Use the product description to confirm the stated base-material suitability for the option selected.
Choose a pack size that fits the scope of work
Pack quantities represented range from 25 to 100 anchors, with 50-piece options also available. Comparing package count can help align the purchase with multiple fastening locations.
- 25-piece packs are represented.
- 50-piece packs are represented.
- 100-piece packs are represented.
Common questions before buying
What materials are these expansion anchors used in?
The represented products are intended for concrete, brick, and block. Some options also state use in solid stone.
Can the bolt be removed after installation?
Yes. The internally threaded designs are described as allowing machine-threaded bolts to be removed for service work.
How do double expansion anchors work?
They expand against the base material at two points when a machine-threaded bolt is installed.
What pack quantities are available?
The supplied summaries represent 25-, 50-, and 100-piece quantities.
Choosing the right file folders
FilingSupplies.com carries end-tab folders for open-shelf systems, top-tab folders for drawer filing, and heavy-duty classification folders with dividers and fasteners for multi-section records. Pick letter or legal size, then choose material (11-pt, 14-pt, or 18-pt manila), optional reinforced tabs, color-coding, and expansion capacity to match your volume.
Folder FAQs
End-tab vs. top-tab — what’s the difference?
When should I choose classification folders?
Letter or legal size — how do I pick?
What tab and material options are available?
Can I add fasteners, pockets, or expansion?
Do you offer volume pricing or custom printing?
Outfitting classrooms that work all day
Build a durable, age-appropriate classroom with furniture, early-learning materials, storage bins, learning centers, and presentation tools. Choose adjustable pieces that grow with grades, label friendly bins for quick clean-up, and tech carts that secure, charge, and move easily.
Education FAQs
What safety labels should I look for on school and early-childhood items?
How do I pick classroom furniture across grade levels?
What’s the best way to organize supplies and centers?
How do I choose learning games and manipulatives by age?
What should I consider in a charging/tech cart?
Do you support school POs, bulk pricing, or custom printing?
Choosing the right labels
From color file labels to printable sheets, select the right size, adhesive, and print method to match your filing system and equipment. Decide on sheet vs. roll format, then pick permanent or removable adhesive and your color set.
Labels FAQs
Sheet vs. roll labels — what’s the difference?
Permanent or removable adhesive?
Will these labels work in my printer?
How do I match the label size to folder tabs or binder spines?
Can I get preprinted sequences or color bars?
Do you have templates?
Choosing the right tab dividers
Organize binders with preprinted or blank tabs. Select the number of tabs per set (5, 8, 10, or 12), choose paper with reinforced tabs or durable poly, and match letter or legal size for a clean fit.
Tab Dividers FAQs
What do 5-, 8-, 10-, or 12-tab sets mean?
Paper vs. poly — which should I choose?
Are the tabs printable?
Will they fit my binder?
Can I mix preprinted and blank tabs?
Do you make custom tab sets?
Choosing the right office supplies
From everyday paper and pens to binders, mailers, and desk organizers, pick durable, compatible options that match your equipment and team size. Start with the right paper and labeling, then add organizers that keep work moving.
Office Supplies FAQs
Which paper weight and brightness should I choose?
Round-ring vs. D-ring binders — what’s the difference?
What does “sheet capacity” mean on staplers and hole punches?
Will labels, envelopes, and mailers work with my printer?
How do I choose mailers and shipping boxes?
Do you offer eco-conscious options or bulk pricing?
Choosing the right sports & PE equipment
Equip classes, teams, and rec programs with durable balls, goals, cones, pinnies, storage, and safety gear. Match sizes and materials to age group and whether you play indoors or outdoors.
Sports & Athletics FAQs
What ball sizes should I choose for different ages?
- Basketball: Size 5 (27.5") youth, Size 6 (28.5") intermediate, Size 7 (29.5") official.
- Soccer: Size 3 up to ~8 years, Size 4 ~8–12, Size 5 ~12+.
- Volleyball: Regulation balls for teens/adults; lighter training balls for younger players.
Indoor vs. outdoor — which materials hold up best?
How many pinnies, cones, or markers do I need?
Tips for storage and care?
Are items latex‑free and school‑safe?
Do you support bulk orders or custom printing (team names)?
Choosing the right FireKing fireproof cabinet
FireKing fireproof file cabinets, safes, and storage cabinets are designed to protect important documents, records, and valuables from fire damage while keeping files organized and accessible. When choosing a FireKing cabinet, compare drawer configuration, storage type, fire rating, and overall capacity based on the records or materials you need to protect.
FireKing FAQs
What is the difference between FireKing vertical and lateral file cabinets?
What can I store in a FireKing fireproof file cabinet?
Are FireKing cabinets only for paper records?
How do I choose between a FireKing safe, file cabinet, or storage cabinet?
What sizes are available in FireKing cabinets?
Are FireKing cabinets used in offices, medical facilities, and government records storage?
Can I buy FireKing cabinets in bulk or get help choosing the right model?
Shipping & Policies
Do you offer free shipping?
What are your shipping rates?
- $6.95 for labels-only orders under $40
- $14.95 flat rate for everything else
Zamac Alloy Double Expansion Anchor, 5/16-18, 100 PackWBB3148601
Double Expansion Machine Screw Anchor, 1/2-13, Zamac Alloy, 25-PackWBB3148599
Double Expansion Machine Screw Anchors, 3/8 in.-16, 50-PackWBB3148614
3/8 in. x 2 in. Dual Expansion Machine Bolt Anchor, UNC, 50-PackWBB2198996