4x8 3.1 Mil Reclosable ESD Static Shielding Bags 500/Case
$158.01
/ case of 500$0.32 per bag
Request bulk pricing
| Quantity (case) | Item-subtotal discount |
|---|---|
| 1–2 | Base item price |
| 3–5 | 3% off qualifying item subtotal |
| 6+ | 5% off qualifying item subtotal |
In stock · ships within 1 business day from the nearest of 5 US warehouses (IL, PA, TX, GA, CA) · 1–5 business days in transit · freight calculated at checkout · free ground shipping on orders over $99 (parcel rates up to $29.95) and over $500 (up to $120)
30-day returns on stock items · Return policy
Inside dimensions
4" × 8"
Board / material
3.1 Mil
Color
Transparent
Freight class
Class 60
Specifications
| Inside dimensions | 4" × 8" (L × W) |
|---|---|
| Board / material | 3.1 Mil |
| Color | Transparent |
| Sold as | Case of 500 |
| Physical units per order increment | 500 (one case) |
| Case weight | 6.24 lb |
| Outer carton (shipping) | 20.75 × 15.5 × 2.5 in |
| LTL freight class | Class 60 |
| GTIN | 00051111778180 |
| SKU | STC313 |
About this item
SKU STC313 — 4" × 8", 3.1 Mil, Transparent. Sold as a case of 500, shipped from US warehouses.
Protect sensitive electronics with these 4x8 " reclosable anti-static bags featuring 3.1 mil multi-layer construction and printed ESD warning symbols. Buy by the case of 500 and reduce per-unit costs.
Anti-static poly bags: Good fit for electronics, circuit boards, components, parts kitting, and static-sensitive warehouse inventory. These poly bags help fulfillment, warehouse, ecommerce, and parts teams choose right-sized bags for storage, kitting, packing, and shipping workflows.
Compare nearby options
Larger, smaller and stronger options from the same family. Prices shown are current case prices; freight is calculated at checkout.
Larger size
5x8 3.1 Mil Reclosable ESD Static Shielding Bags 100/Case
$25.78
Smaller size
4x4 3.1 Mil Reclosable ESD Static Shielding Bags 500/Case
$108.42
Stronger option
4x8 4 Mil Clear Reclosable Poly Bags 1000/Case
$45.90
Same size, different spec
4x8 2 Mil Reclosable White Block Poly Bags 1000/Case
$34.19
Common questions
What actually fits inside a 4x8" bag?
The listed size is 4x8". Plan for contents slightly smaller than the nominal size — the usable interior runs a bit under the listed measurement once the bag takes shape around what you load into it.
Is 3.1 mil the right thickness for my use?
A mil is one-thousandth of an inch, so 3.1 mil film is 3.1/1000" thick — 4 mil film, for example, is twice the film thickness of 2 mil. Heavier film of the same material stands up to punctures and rough handling better; lighter film costs less per bag and packs tighter. This listing's material is specified as 3.1 Mil Multi-Layer Static Shielding Poly.
Can a nearby size or thickness replace STC313?
Not as an exact replacement. The closest sizes in this line are 4x6" and 5x8"; any size change alters the usable interior. Before switching, match the listed dimensions, 3.1 mil thickness, closure type, and case count — then reorder by exact SKU STC313.
How do these bags close, and how are they shipped?
The closure is listed as Zip-Top Reclosable Seal, so the bag closes without separate tape or heat. This listing is sold as one case of 500 bags — roughly $0.32 per bag at the current case price (confirm the live price before ordering). Orders ship from Packrift's five US warehouse regions (Central IL, NE PA, S TX, SE GA, and W CA); delivery options and timing are shown at checkout.
Order support
Questions on specs or freight?
Send the SKU, quantity, and delivery ZIP and we will confirm specs, availability, and freight before you order.