End-tab vs. top-tab — what’s the difference?

End-tab folders show the tab on the long side and are used on open-shelf systems; top-tab folders show the tab along the top edge and are designed for drawer filing.

When should I choose classification folders?

Choose classification folders when you need built-in dividers and 2-prong fasteners to separate sections within one file—ideal for medical charts, legal matters, and case files.

Letter or legal size — how do I pick?

Letter (8.5\" × 11\") fits standard documents; legal (8.5\" × 14\") fits longer forms. Match the folder to both your documents and storage equipment.

What tab and material options are available?

Tabs include full-cut, 1/2-cut, or 1/3-cut (assorted positions). Materials range from 11-pt to 18-pt manila, with optional reinforced (2-ply) tabs for added durability.

Can I add fasteners, pockets, or expansion?

Yes—add 2\" bonded fasteners (various positions), pockets/jackets, and expansion gussets (e.g., 3/4\" to 2\"+). Check each product’s options for capacity and placement.

Do you offer volume pricing or custom printing?

We offer bulk price breaks and custom printing (logos, lines, colors). Call (800) 810-3453 for a quote.

What safety labels should I look for on school and early-childhood items?

For children’s products, look for CPSIA compliance and a Children’s Product Certificate (CPC). Art materials should be labeled to ASTM D-4236; many also carry ACMI’s “AP” (non-toxic) or “CL” seals. These help confirm proper cautionary labeling and third-party testing where required.

How do I pick classroom furniture across grade levels?

Favor adjustable-height desks/tables and seating tested to ANSI/BIFMA X6.1 for educational use. Check manufacturer grade/height charts; adjustable ranges let you cover multiple grades with one model and simplify purchasing and spares.

What’s the best way to organize supplies and centers?

Use latching, stackable bins (clear for quick ID; colors for zones/subjects). Add label holders on bins and shelves, and keep a posted color key so students can reset the room independently.

How do I choose learning games and manipulatives by age?

Match to the stated age/grade band and learning goals (fine motor, numeracy, literacy). For early childhood, prioritize oversized pieces, wipe-clean surfaces, and non-toxic finishes.

What should I consider in a charging/tech cart?

Count devices and case sizes; verify slot width/height, cable management, ventilation, and locking doors. If devices support fast-charge (e.g., USB-C PD), confirm the cart’s power specs and total charging wattage.

Do you support school POs, bulk pricing, or custom printing?

Yes—volume pricing and custom imprinting (school name, mascot, subject headers) are available. Call (800) 810-3453.

Sheet vs. roll labels — what’s the difference?

Sheet labels (letter-size) run through laser/inkjet printers; roll labels feed through thermal or dedicated label printers.

Permanent or removable adhesive?

Permanent adhesives are best for long-term filing; removable adhesives peel away cleanly from most surfaces for temporary notes or re-use.

Will these labels work in my printer?

Check each item’s spec for “laser,” “inkjet,” or “thermal.” Avoid running inkjet-only sheets through a laser printer.

How do I match the label size to folder tabs or binder spines?

Measure the printable area of your tab or spine and match to the label’s width/height. If unsure, choose a slightly smaller label for clean alignment.

Can I get preprinted sequences or color bars?

Yes—choose preprinted sets (A-Z, 0-9, months) or request custom colors/text to match your filing system.

Do you have templates?

We provide size specifications and many customers use common label templates. If you need help aligning, call (800) 810-3453.

What do 5-, 8-, 10-, or 12-tab sets mean?

That’s the number of tabs per set. More tabs provide finer organization; fewer tabs give larger, easier-to-read tabs.

Paper vs. poly — which should I choose?

Paper (often with Mylar-reinforced tabs) is economical and easy to write on; poly resists tears and moisture for heavy use and frequent handling.

Are the tabs printable?

Some tabs are hand-write only; others are laser/inkjet printable. Check each product for “printable” support and printer compatibility.

Will they fit my binder?

Choose letter (8.5\" × 11\") for most 3-ring binders or legal (8.5\" × 14\") for longer documents. Many options are pre-punched for standard rings.

Can I mix preprinted and blank tabs?

Yes—use a preprinted core set and add blank or custom tabs for sections unique to your workflow.

Do you make custom tab sets?

Yes—tab titles, colors, and sheet stock can be customized. Call (800) 810-3453.

Which paper weight and brightness should I choose?

Use 20 lb / 75 gsm, 92-brightness for everyday printing; step up to 24–28 lb and 96+ brightness for presentations and double-sided color. If you print heavy coverage or duplex often, the thicker stock helps reduce show-through. Always confirm your printer’s supported paper weights.

Round-ring vs. D-ring binders — what’s the difference?

D-ring binders hold more paper at the same spine width and keep pages lying flatter, which reduces edge wear. Round-rings are economical for smaller sets. Pick capacity based on sheet count and how often you turn pages.

What does “sheet capacity” mean on staplers and hole punches?

It’s measured using standard 20 lb copy paper. If you use heavier paper, expect a lower effective capacity. For shared spaces, choose high-capacity staplers/punches to avoid jams and downtime.

Will labels, envelopes, and mailers work with my printer?

Check each item’s spec for “laser,” “inkjet,” or “thermal.” Laser-safe adhesives resist heat; some inkjet-only sheets shouldn’t go through laser fusers. Use your printer’s label or heavy-stock setting for best feed and adhesion.

How do I choose mailers and shipping boxes?

Bubble or poly mailers are great for lightweight, non-fragile contents; corrugated boxes protect heavier or delicate items. Match interior dimensions to your contents, add cushioning if needed, and choose stronger board as weight increases.

Do you offer eco-conscious options or bulk pricing?

Many items are available with recycled content or reduced-waste packaging, and we offer volume price breaks. Call (800) 810-3453 for large-order help or product guidance.

What ball sizes should I choose for different ages?

Use age-appropriate sizes for safer, more successful play. Common guidelines include: 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. Always check the product page for the manufacturer’s recommended age range.

Indoor vs. outdoor — which materials hold up best?

Composite or rubber-covered balls and poly cones hold up well outdoors; leather and finer composites are best indoors. For markers, look for UV-stable plastics; for goals, choose powder-coated frames and weather-resistant nets for outdoor use.

How many pinnies, cones, or markers do I need?

For classes and drills, packs of 12 are a good start; 24–36 pieces cover full-class activities and multiple stations. Choose mixed colors for quick team splits and field zones.

Tips for storage and care?

Use ventilated ball bags or carts, wipe down gear after outdoor use, and avoid prolonged heat/sun in storage. Inflate balls to the manufacturer’s recommendations and check pressure periodically to extend lifespan.

Are items latex-free and school-safe?

Many products are offered in latex-free or phthalate-free materials. Look for those callouts on the product page. Children’s items may include compliance statements on labeling; review those details if you’re purchasing for younger ages.

Do you support bulk orders or custom printing (team names)?

Yes—volume pricing and custom imprinting are available on many items. Call (800) 810-3453 for a quote or assistance with large sets.

What is the difference between FireKing vertical and lateral file cabinets?

Vertical file cabinets are deeper and narrower, making them a good fit for offices with limited wall space. Lateral file cabinets are wider and allow side-to-side filing, which can make document access easier and provide more filing width per drawer.

What can I store in a FireKing fireproof file cabinet?

FireKing cabinets are commonly used to store paper files, legal documents, medical records, financial records, contracts, personnel files, and other important business paperwork that needs organized fire-resistant storage.

Are FireKing cabinets only for paper records?

Many FireKing products are primarily designed for paper document protection, but some models may also be used for storing valuables or other office materials. Always review the specific product details and manufacturer recommendations to confirm the intended storage use for each model.

How do I choose between a FireKing safe, file cabinet, or storage cabinet?

Choose a fireproof file cabinet if you need organized drawer-based filing for records. Choose a safe if you need compact secure storage for documents, cash, or valuables. Choose a fireproof storage cabinet if you need shelf storage for binders, boxed records, supplies, or larger office materials.

What sizes are available in FireKing cabinets?

FireKing products are available in several sizes and configurations, including vertical file cabinets, lateral file cabinets, safes, card file cabinets, and storage cabinets. Available sizes, number of drawers, and overall dimensions vary by model.

Are FireKing cabinets used in offices, medical facilities, and government records storage?

Yes. FireKing cabinets are commonly used in offices, healthcare facilities, legal environments, schools, and government agencies where important records need secure, organized, fire-resistant storage.

Can I buy FireKing cabinets in bulk or get help choosing the right model?

Yes. We can help with product selection, bulk orders, and larger project needs. If you need assistance comparing FireKing file cabinets, safes, or storage cabinets, call (800) 810-3453.

Do you offer free shipping?

Yes—free ground shipping on orders of $99+.

What are your shipping rates?

Labels-only orders under $40 ship for $6.95. All other orders ship for a flat $14.95.

Do you offer bulk discounts?

Yes—volume pricing is available on many items. Contact us for a quote or large-order assistance.

Do you accept purchase orders (POs)?

Yes—we accept POs from schools and government agencies. If you need terms or documentation, please reach out.

Where can I read your full Shipping and Return policies?

See our Shipping Policy and Return Policy pages for complete details.

How can I contact you?

Call (800) 810-3453 or use our Contact Us form.

Ultrasonic Inserts for Thermoplastic Parts

Ultrasonic Inserts

Ultrasonic inserts are threaded fastener components installed in compatible thermoplastic parts to create a threaded connection point. They are used in commercial assembly, fabrication, repair, and production work when components need to be attached to thermoplastic material with a specified thread size and insert profile.

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E-Z Lok

1/4-20 Flanged Straight Ultrasonic Insert

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$0.30

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This 1/4-20 flanged straight ultrasonic insert is for buyers and assembly teams working with thermoplastic parts. It provides a threaded fastening point for applications that require an insert...

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E-Z Lok

10-32 Flush Straight Ultrasonic Insert

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Our Price:
$0.16

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This 10-32 straight ultrasonic insert is for assembly teams working with thermoplastic components. It provides a flush threaded insert point for 10-32 fasteners in thermoplastic applications.The...

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E-Z Lok

3/8-16 Flush Straight Ultrasonic Insert

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Our Price:
$0.47

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This 3/8-16 straight ultrasonic insert is for buyers working with thermoplastics who need a flush insert for threaded fastening applications.The insert has a straight, flush configuration with 3/8-16...

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E-Z Lok

3/8-24 Flush Straight Ultrasonic Insert

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Our Price:
$0.42

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This straight ultrasonic insert is for users working with thermoplastic parts who need a flush threaded insert. It provides a 3/8-24 threaded connection in thermoplastic applications.The insert has a...

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E-Z Lok

3/8-24 Tapered Single-Vane Ultrasonic Insert

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$0.31

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This tapered ultrasonic insert is for users working with thermoplastic components that require a 3/8-24 threaded fastening point. Its single-vane design supports ultrasonic insertion into compatible...

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E-Z Lok

M6-1.0 Tapered Double-Vane Ultrasonic Insert, 25-Pack

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$8.49

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Package pricing: The displayed price is for one package of 25. Order quantity 1 means one package. Minimum order: 1 package.This tapered ultrasonic insert is for buyers adding M6-1.0 threaded...

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Helpful Buying Guide

Ultrasonic Insert Buying Guide

Choose ultrasonic inserts by first matching the required fastener thread, then selecting the insert profile specified for the thermoplastic part and application. This category includes tapered vane styles as well as flush straight and flanged straight configurations, with package quantities suited to smaller projects, stocking, and larger assembly needs.

Visual Guide

Popular examples in this category

M3-0.5 Tapered Double-Vane Ultrasonic InsertWBB435472

4-40 Flush Straight Ultrasonic InsertWBB435477

8-32 Tapered Double-Vane Ultrasonic InsertWBB435451

1/4-20 Flanged Straight Ultrasonic InsertWBB435510

Use Cases

Add threaded fastening points to thermoplastics

Ultrasonic inserts are used where a thermoplastic part needs a defined threaded connection for a compatible fastener. They support assembly, fabrication, repair, and repeat production work.

How to Choose

Start with thread and profile

Match the insert to the required metric or inch thread size, then choose the stated tapered, flush straight, or flanged straight profile. For tapered options, also confirm whether a single-vane or double-vane design is required.

Applications

For compatible thermoplastic components

These inserts are intended for installation in thermoplastic parts and components. Select the configuration that matches the threaded fastening point required by the assembly.

Additional Info

Plan around package quantity

Available quantities range from 25-piece packs to 1,000-pack options. Smaller counts can fit repair or project needs, while larger packs can support stocking and production requirements.

3Profile families

Tapered, flush straight, and flanged straight insert profiles are represented.

2Vane styles

Tapered options include single-vane and double-vane designs.

9Thread sizes

The listed selection spans nine metric and inch thread sizes.

25–1,000Pieces per package

Package quantities represented range from 25 to 1,000 inserts.

Comparison Guide

Compare ultrasonic insert profile options

Use the specified profile, vane configuration, and thread requirement to narrow the available ultrasonic insert styles for compatible thermoplastic applications.

Insert type	Configurations represented	Selection consideration
Tapered	Single-vane and double-vane designs; metric and inch thread sizes	Choose when the application calls for a tapered ultrasonic insert and the required vane style.
Flush straight	Flush profile with straight design; inch thread sizes represented	Choose when a flush insert installation profile is required in a thermoplastic component.
Flanged straight	Flanged profile with straight design; inch thread sizes represented	Choose when the application specifies a flanged straight insert for thermoplastic assembly.

Planning Guide

Plan the right fit before choosing

Thread Selection

Match the insert to the fastener requirement

The listed assortment includes both metric and inch thread sizes. Selecting the correct thread is the first step toward creating a compatible threaded fastening point in a thermoplastic part.

Metric sizes represented include M3-0.5, M4-0.7, and M6-1.0.
Inch sizes represented include 4-40, 8-32, 10-32, 1/4-20, 3/8-16, and 3/8-24.
Use the stated thread size to match compatible fastener requirements.

Profile Selection

Compare tapered, flush straight, and flanged straight formats

Insert profile is a central selection factor. Tapered inserts are available with single-vane or double-vane designs, while straight inserts are offered in flush and flanged configurations.

Tapered inserts are represented in single-vane and double-vane styles.
Flush straight inserts are available for applications requiring a flush profile.
Flanged straight inserts provide the stated flanged profile for thermoplastic assembly work.

Quantity Planning

Choose a pack size that fits the work ahead

Package quantities vary across the assortment, allowing buyers to choose an amount aligned with a repair task, planned assembly work, stocking needs, or production requirements.

25-count packages are represented for project, repair, or stocking needs.
50-, 100-, 250-, and 500-count options support repeat assembly needs.
A 1,000-pack option is represented for larger assembly or production requirements.

FAQ

Common questions before buying

What are ultrasonic inserts used for?

They create threaded fastening points in compatible thermoplastic parts for use with compatible fasteners.

What thread sizes are available?

The represented selection includes M3-0.5, M4-0.7, M6-1.0, 4-40, 8-32, 10-32, 1/4-20, 3/8-16, and 3/8-24.

What insert profiles are represented?

The category includes tapered, flush straight, and flanged straight ultrasonic insert profiles.

What package quantities are available?

Listed package quantities range from 25 to 1,000 pieces, with 50-, 100-, 250-, and 500-count options also represented.

Ultrasonic Inserts

1/4-20 Flanged Straight Ultrasonic Insert

10-32 Flush Straight Ultrasonic Insert

3/8-16 Flush Straight Ultrasonic Insert

3/8-24 Flush Straight Ultrasonic Insert

3/8-24 Tapered Single-Vane Ultrasonic Insert

M6-1.0 Tapered Double-Vane Ultrasonic Insert, 25-Pack

Ultrasonic Insert Buying Guide

Popular examples in this category

Add threaded fastening points to thermoplastics

Start with thread and profile

For compatible thermoplastic components

Plan around package quantity

Compare ultrasonic insert profile options

Plan the right fit before choosing

Match the insert to the fastener requirement

Compare tapered, flush straight, and flanged straight formats

Choose a pack size that fits the work ahead

Common questions before buying

Choosing the right file folders

Folder FAQs

Outfitting classrooms that work all day

Education FAQs

Choosing the right labels

Labels FAQs

Choosing the right tab dividers

Tab Dividers FAQs

Choosing the right office supplies

Office Supplies FAQs

Choosing the right sports & PE equipment

Sports & Athletics FAQs

Choosing the right FireKing fireproof cabinet

FireKing FAQs

Shipping & Policies