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KYA B8 STCR2115 Galvanized Staples are crowned office staples designed for compatible B8-type staplers used in offices, schools, mailrooms, administrative departments and other high-volume paper-fastening applications.
The KYA STCR2115 Series uses a nominal 11.60mm B8 crown, 0.51mm wire width, 0.41mm wire thickness, chisel-point legs and a galvanized zinc-plated finish. Current KYA length options include 6mm, 8mm, 10mm and 12mm.
For replacement use in Bostitch B8 staplers, always match the exact staple length and stapler model. Current genuine Bostitch B8 systems commonly specify 1/4-inch and 3/8-inch PowerCrown staples, so KYA's additional 8mm, 10mm and 12mm sizes should not automatically be treated as compatible with every B8 tool.
| Specification | Details |
|---|---|
| Product Type | B8 / STCR2115 Office Staple |
| Series | STCR2115 |
| KYA Reference | KYA-STCR2115 |
| Crown | 11.60mm nominal B8 crown / commonly marketed as 7/16-inch class |
| Wire Width | 0.51mm according to current KYA detailed specification |
| Wire Thickness | 0.41mm according to current KYA detailed specification |
| Length Range | 6mm, 8mm, 10mm, 12mm |
| Material | High-Carbon Steel |
| Finish | Galvanized / Zinc Plated |
| Point Type | Chisel Point |
| Crown Profile | B8 / STCR2115-Type Crowned Profile |
| KYA Staples per Strip | 209 pcs according to current KYA product data |
| Staples per Box | 5,000 pcs |
| Primary Application | Office, School, Mailroom and Paper Fastening |
| Tool Requirement | Compatible B8 / STCR2115 stapler matched to the selected staple length |
Dimensional note: KYA's current detailed specification lists a 0.51 × 0.41mm wire section. Buyers requiring exact cross-brand interchange should confirm the current production drawing or compare a physical sample before bulk ordering.
B8 STCR2115 staples are an office-staple format associated with Bostitch B8 stapling systems. Their distinctive crowned top is designed to flatten during the staple drive, helping support the staple legs as they penetrate the paper stack.
Compared with generic standard office staples, the B8 format is primarily selected when the stapler specifically requires an STCR2115 / B8-style staple. Crown dimensions, wire section, leg length and strip geometry should therefore be treated as compatibility dimensions rather than assuming every office staple is interchangeable.
KYA manufactures these staples as B8 / STCR2115-type replacement fasteners. Tool-brand references help identify the required staple format, but buyers should still verify the exact stapler model, accepted leg length and physical staple dimensions before cross-brand substitution.
The raised crown profile is flattened as a compatible stapler drives the fastener. In a correctly matched B8 system, this geometry helps support the staple legs during penetration and can reduce buckling compared with using an incorrect staple format.
The current KYA specification lists high-carbon steel wire. Higher wire stiffness can help the staple maintain its geometry during driving, although actual stapling performance also depends on stapler condition, paper stack thickness and exact staple dimensions.
Chisel-point legs concentrate the driving force at the tips to support penetration through paper and other compatible light materials.
The zinc-plated surface provides general corrosion protection for normal indoor office, school and storage environments. It should not be interpreted as a specification for permanently wet or aggressive corrosive conditions.
KYA currently lists four leg lengths in the STCR2115 family. The inch descriptions commonly used in the market are nominal designations rather than exact metric conversions.
| KYA Model | Leg Length | Market Reference | Wire | Pcs / Strip | Pcs / Box | Compatibility Guidance |
|---|---|---|---|---|---|---|
| STCR2115-6 | 6mm | Nominal 1/4" | 0.51 × 0.41mm | 209 | 5,000 | 1/4-inch B8 is a current standard Bostitch refill size; verify actual interchange dimensions. |
| STCR2115-8 | 8mm | Nominal 5/16" | 0.51 × 0.41mm | 209 | 5,000 | KYA family size; confirm that the exact stapler accepts an 8mm leg before use. |
| STCR2115-10 | 10mm | Often marketed as 3/8" class | 0.51 × 0.41mm | 209 | 5,000 | Current genuine Bostitch 3/8-inch B8 staples are specified as 9mm, so do not assume 10mm is an exact OEM dimensional match. |
| STCR2115-12 | 12mm | Approximately 1/2" class | 0.51 × 0.41mm | 209 | 5,000 | KYA family size; verify the exact tool because current standard Bostitch B8 refill listings do not establish universal 12mm compatibility. |
Do not determine compatibility only from the B8 name. Different B8 staplers have different magazine capacities and accepted leg lengths. Use the exact stapler model and fastener length when qualifying KYA replacement staples.
| Bostitch Tool | Current Published B8 Staple Reference | KYA Selection Guidance |
|---|---|---|
| B8E / B8E-VALUE | 1/4" and 3/8" B8 PowerCrown staples | Verify KYA 6mm and longer reference sizes against the exact tool specification before substitution. |
| B8HDP | 1/4" or 3/8" B8 PowerCrown staples | Do not assume the complete 6–12mm KYA family is accepted. |
| B8P / 02245 | 1/4" or 3/8" B8 PowerCrown staples | Match the selected staple length to the tool and required paper or light-packaging thickness. |
| B8RC | Bostitch specifies 1/4" B8 PowerCrown staples | KYA 6mm is the closest family reference; verify dimensional interchange. |
| B8RC-FC | Bostitch specifies 1/4" B8 PowerCrown staples | The 8mm, 10mm and 12mm KYA variants require model-specific verification before use. |
| B8RC-2G | Bostitch specifies 1/4" B8 PowerCrown staples | Use model-specific verification before selecting a longer KYA STCR2115 leg. |
| Other B8-Type Staplers | Varies by manufacturer and model | Confirm crown, wire cross-section, leg length, strip length and magazine geometry. |
| Parameter | KYA STCR2115 | Current Bostitch B8 Reference |
|---|---|---|
| Staple System | STCR2115 / B8-Type | B8 PowerCrown |
| Crown | 11.60mm nominal | B8 proprietary staple format; compare actual dimensions for interchange |
| KYA Wire | 0.51 × 0.41mm detailed specification | Use genuine product drawing or sample when exact cross-reference is required |
| Short Staple | 6mm | 1/4" / approximately 6mm |
| Longer Common B8 Staple | KYA lists 10mm | Bostitch current 3/8" version is specified as 9mm |
| Staples per Strip | 209 according to KYA data | 210 on current genuine Bostitch full strips |
| Staples per Box | 5,000 | 5,000 on common Bostitch refill boxes |
For distributors replacing an existing Bostitch staple, providing an original staple sample, box reference or exact stapler model is the safest way to qualify interchangeability.
B8 staples are suitable for compatible desktop, electric and plier staplers used to fasten reports, forms, manuals, invoices and everyday office documents.
Schools, universities and educational suppliers can use B8-type staples in compatible staplers for worksheets, classroom packets, presentations and administrative documents.
High-volume offices and mailrooms can use compatible B8 plier or electric staplers for document assembly and repetitive administrative fastening.
Selected B8 heavy-duty plier systems are also rated for light corrugated board, fiber board and plastic packaging. Use the stapler manufacturer's material and staple-length guidance rather than assuming every B8 desktop tool is intended for packaging.
| Selection Factor | What to Check |
|---|---|
| Stapler Model | Use only a leg length accepted by the exact B8 or STCR2115 stapler. |
| Paper Stack Thickness | Thicker document stacks generally require a longer staple, provided the tool supports it. |
| Clinching Requirement | Staple legs must penetrate the stack and still form correctly against the clincher. |
| Material Type | Paper, light corrugate, fiber board or plastic can require different tool and staple configurations. |
| OEM Reference | When replacing an existing staple, compare the original model number and physical dimensions. |
No. B8 / STCR2115 staples use a different crown profile and dimensional format from conventional 24/6, 26/6 and other common office staple systems. Similar leg length does not establish interchangeability.
| Feature | B8 / STCR2115 | Generic Standard Office Staple |
|---|---|---|
| Crown Profile | B8 crowned profile | Conventional flat crown format |
| Tool | B8 / STCR2115-compatible stapler | Standard office stapler |
| Interchangeable? | No. Match the fastener system specified by the stapler manufacturer. | |
| Ordering Information | What to Provide |
|---|---|
| Staple Series | B8 / STCR2115 |
| Length | 6mm, 8mm, 10mm or 12mm |
| Crown | 11.60mm nominal B8 crown |
| Wire | Current KYA detailed reference: 0.51 × 0.41mm |
| Finish | Galvanized / Zinc Plated |
| Stapler Model | Provide exact manufacturer and model |
| Existing Staple Reference | Provide original box number, sample or dimensions when replacing another brand |
| Application | Office paper, school documents, mailroom work or light packaging |
| Quantity | Boxes, cartons, pallets or annual purchasing volume |
Send Your STCR2115 Requirements
They are used in compatible B8-type staplers for office documents, reports, school materials, administrative work, mailroom stapling and selected light-packaging applications.
The current KYA detailed specification lists a nominal 11.60mm B8 crown, commonly marketed in the 7/16-inch staple class.
KYA's current detailed specification lists 0.51mm width × 0.41mm thickness. For exact cross-brand interchange, confirm the current production drawing or compare the physical staple dimensions with the original fastener.
Gauge naming for small office staple wire is not consistent across suppliers. KYA identifies this product as 25 gauge, while some other STCR2115 suppliers use a 26-gauge designation. For purchasing and compatibility, use the actual crown and wire dimensions rather than gauge alone.
KYA currently lists 6mm, 8mm, 10mm and 12mm versions.
Do not assume exact dimensional equivalence. KYA lists a 10mm version, while current genuine Bostitch 3/8-inch PowerCrown staples are specified as approximately 9mm. Verify the exact tool and staple dimensions before substitution.
No. Current Bostitch B8 tool specifications commonly identify 1/4-inch and, on selected heavy-duty models, 3/8-inch staples. A 12mm KYA staple should only be used in a tool whose specification explicitly accepts that leg length and staple geometry.
Bostitch currently specifies its B8E-VALUE system for 1/4-inch and 3/8-inch B8 PowerCrown staples. When using KYA aftermarket staples, compare the selected length and physical dimensions with the tool specification.
Bostitch currently specifies the B8HDP for 1/4-inch or 3/8-inch B8 PowerCrown staples. Do not assume every KYA 6–12mm version fits the tool.
The Bostitch 02245 heavy-duty plier stapler is currently specified for 1/4-inch or 3/8-inch B8 PowerCrown staples. Confirm the KYA replacement dimensions before volume use.
Not necessarily. Bostitch currently specifies the B8RC, B8RC-FC and B8RC-2G primarily for 1/4-inch PowerCrown staples, while the B8HDP is specified for 1/4-inch and 3/8-inch staples.
The current KYA product table lists 209 staples per strip. Genuine Bostitch full strips are commonly listed as 210 staples, so the two packing specifications should not be presented as identical.
The current KYA product specification lists 5,000 staples per box.
In a compatible B8-style stapler, the crowned top is flattened during driving, helping support the staple legs and reducing the tendency to buckle during penetration.
Do not treat 50% as a universal staple performance specification. Bostitch uses this comparison for specific B8 stapler systems relative to conventional staplers. Actual sheet capacity depends on the stapler model, staple length and paper thickness.
Selected heavy-duty B8 plier systems can staple light corrugate, fiber board and plastic. Confirm that the exact stapler and selected staple length are rated for the material.
These staples are manufactured and supplied by KYA as STCR2115 / B8-type compatible staples. Buyers replacing genuine Bostitch fasteners should compare the exact dimensions and stapler requirements before use.
Contact KYA Fasteners to confirm current sample availability. For cross-brand replacement, test the selected staple in the actual stapler and normal paper or packaging material before placing a bulk order.
KYA supplies B8 / STCR2115 office staples for stationery distributors, office-supply wholesalers, school-supply distributors, stapler distributors, mailroom suppliers and other professional buyers.
For quotations, provide the required STCR2115 length, exact stapler model, existing staple reference, required quantity, packaging requirement and destination market.
