KYA B7 Series staples are 16 gauge medium-crown fasteners with an approximately 11.11mm / 7/16 inch crown, 1.58mm wire width and 1.38mm wire thickness. Available leg lengths range from 16mm / 5/8 inch to 50mm / 2 inches for professional sheathing, subflooring, crating, furniture framing, decking and other industrial fastening applications.
The standard galvanized configuration uses steel wire, glue collation and a chisel point for use in compatible 16 gauge 7/16 inch crown staplers. The B7 format corresponds to the same general fastener class as Duo-Fast 7600, Spotnails 56, Haubold 700, Paslode GSI16 and Prebena Z systems.
Tool compatibility should be confirmed by crown width, wire cross-section, leg length and the exact stapler model. Similar crown dimensions alone do not guarantee interchangeability.
| Specification | Details |
| Product | 16 Gauge 7/16 Inch Crown B7 Series Staples |
| Gauge | 16 Gauge |
| Crown | Approx. 11.11mm / 7/16 Inch |
| Wire Width | 1.58mm / 0.063" |
| Wire Thickness | 1.38mm / 0.055" |
| Leg Length Range | 16–50mm / 5/8"–2" |
| Point | Chisel Point |
| Collation | Glue Collated |
| Standard Finish | Galvanized Steel |
| Other Listed Material Options | Stainless Steel, Aluminum and Carbon Steel subject to specification |
| Staples per Stick | 70 pcs |
| Standard Packing | 10,000 pcs/carton |
| Fastener Class | 16GA Medium Crown Staple |
| Comparable Series | Duo-Fast 7600, Spotnails 56, Haubold 700, Paslode GSI16, Prebena Z |
The B7 Series uses an approximately 11.11mm / 7/16 inch crown. This medium-crown format provides a wider bearing area than narrow-crown staples and is commonly used in structural and production fastening where the staple must distribute load over plywood, OSB, timber or other compatible materials.
The crown dimension should always be matched to the stapler magazine and driver. B7 staples are not interchangeable with lighter fine-wire staples simply because their nominal crown dimensions appear similar.
The staple wire profile measures approximately 1.58mm wide × 1.38mm thick. This heavy rectangular profile is intended for professional 16 gauge medium-crown staplers.
Wire dimensions are important when replacing another fastener brand. A stapler may accept a 7/16 inch crown but still require a specific wire profile and leg-length range.
The B7 Series is available in eleven listed leg lengths from 16mm to 50mm. All listed sizes use the same general 16 gauge medium-crown profile.
| Model | Length (mm) | Length (inch) | Pcs/Stick | Pcs/Carton |
|---|---|---|---|---|
| B7/16 | 16 | 5/8" | 70 | 10,000 |
| B7/19 | 19 | 3/4" | 70 | 10,000 |
| B7/22 | 22 | 7/8" | 70 | 10,000 |
| B7/25 | 25 | 1" | 70 | 10,000 |
| B7/28 | 28 | 1-1/8" | 70 | 10,000 |
| B7/32 | 32 | 1-1/4" | 70 | 10,000 |
| B7/35 | 35 | 1-3/8" | 70 | 10,000 |
| B7/38 | 38 | 1-1/2" | 70 | 10,000 |
| B7/40 | 40 | 1-9/16" | 70 | 10,000 |
| B7/45 | 45 | 1-3/4" | 70 | 10,000 |
| B7/50 | 50 | 2" | 70 | 10,000 |
B7 staples are glue collated into straight strips for feeding through compatible pneumatic staplers. KYA lists 70 staples per stick.
Store staple strips in a clean, dry location and protect them from bending or impact. Damaged strips or contaminated magazines can affect feeding even when the staple dimensions are correct.
The standard B7 configuration uses a chisel point for penetration into compatible wood, sheet material and production substrates.
Actual driving performance depends on material density, staple length, tool pressure, edge distance and stapler condition. Test the selected fastener in the actual substrate before repetitive production.
The standard galvanized version provides zinc-coated steel for general indoor construction and manufacturing applications. KYA also lists stainless steel, aluminum and carbon-steel configurations within the B7 product range, subject to the required specification.
For exterior construction, pressure-treated lumber, coastal exposure or other corrosive environments, confirm the required fastener material and project specification before ordering. Standard electro-galvanized staples should not automatically be treated as suitable for every long-term outdoor application.
The B7 Series belongs to a widely used 16 gauge 7/16 inch medium-crown fastener class. Comparable systems include Duo-Fast 7600, Spotnails 56, Haubold 700, Paslode GSI16 and Prebena Z.
| Tool / System | Compatibility Guidance |
|---|---|
| Duo-Fast 7600 Series | Common reference system for 16GA 7/16" crown medium-crown staples. |
| Duo-Fast KS-7648 / MS7664 / DS7656P / DS7664P | Confirm the leg-length range supported by the specific stapler. |
| Spotnails 56 Series | Same general 16GA 7/16" crown fastener class; confirm exact tool and length. |
| Spotnails MS6650i / XS6650 | Listed for Duo-Fast 7600 / Spotnails 56-type medium-crown staples. |
| Fasco F45C B7-55 | Dedicated B7-type 16 gauge medium-crown stapler reference. |
| Haubold PN750A / PN750X | Haubold 700-type compatible system; confirm fastener length before use. |
| Paslode GSI16 / GSI3150 | Comparable 16GA 7/16" crown medium-crown fastener system. |
| Prebena Z | Interchange reference for the same general 7/16" crown 16GA staple class. |
Do not assume that every 7/16 inch crown stapler accepts every B7 length. Confirm the tool's gauge, wire dimensions, magazine specification and maximum leg length before ordering.
Plywood and OSB sheathing
Subflooring
Roof decking
Crate and box assembly
Furniture framing
Pallet assembly where the fastener specification is suitable
Decking components
Fascia and soffits
Lathing and furring
Selected fencing applications with the appropriate corrosion-resistant material
16 gauge medium-crown staples are commonly used for fastening compatible plywood and OSB in sheathing and subfloor applications. The 7/16 inch crown provides a wider bearing surface than narrow-crown staples.
Fastener length and spacing must follow the panel, substrate and applicable construction requirements. B7/38 should not automatically be treated as the correct subfloor staple for every panel thickness or building specification.
The Duo-Fast 7600 / B7 fastener class is also widely used for crates, boxes and furniture framing where a heavy 16 gauge medium-crown staple is suitable for the assembly.
For packaging and production applications, choose leg length according to material thickness, joint design and the required penetration into the receiving member.
B7-type staples can be used in compatible roof-decking, fascia and soffit applications when the fastener dimensions, material and corrosion protection meet the construction specification.
For exterior assemblies, verify coating or stainless-steel requirements. Standard electro-galvanized fasteners may not meet all exterior, coastal or treated-lumber requirements.
B7 and 71 Series staples belong to different fastener classes and should not be treated as interchangeable. B7 is a heavier 16 gauge, approximately 7/16 inch medium-crown staple, while common 71 Series staples are much lighter fine-wire fasteners used primarily for upholstery and similar applications.
Choose the staple according to the stapler specification and application rather than comparing crown width alone.
| Buyer Check | B7 Reference |
|---|---|
| Gauge | 16 Gauge |
| Crown | Approx. 11.11mm / 7/16" |
| Wire | Approx. 1.58 × 1.38mm |
| Length | 16–50mm depending on substrate and tool |
| Point | Chisel Point |
| Collation | Glue Collated |
| Material | Select galvanized, stainless or other available specification according to environment |
| Stapler | Confirm Duo-Fast 7600 / Spotnails 56 / Haubold 700 / GSI16-type compatibility |
KYA lists B7 Series staples at approximately 70 staples per stick and 10,000 staples per carton. Packaging should be confirmed with the required material, length and order quantity before shipment.
KYA supplies B7 Series staples for construction fastener distributors, woodworking manufacturers, crate and pallet producers, furniture factories and professional contractors.
For bulk purchasing, provide the required leg length, material or finish, stapler model, application and quantity. Stainless-steel or other configurations can be discussed where higher corrosion resistance is required.
KYA supplies B7, N Series, P Series, 14 Series and other heavy-wire staple formats for construction, woodworking, crating, furniture and industrial fastening applications.
KYA B7 Series staples are 16 gauge medium-crown staples.
The nominal crown is 7/16 inch, approximately 11.11mm.
The listed wire profile is approximately 1.58mm wide × 1.38mm thick.
The listed range includes 16, 19, 22, 25, 28, 32, 35, 38, 40, 45 and 50mm leg lengths.
KYA lists approximately 70 staples per stick.
The standard listed quantity is 10,000 staples per carton.
Yes. The standard B7 Series is supplied in glue-collated straight strips.
Yes. The standard configuration uses a chisel point.
They belong to the same general 16 gauge 7/16 inch medium-crown fastener class. Confirm the exact wire dimensions and supported length for the specific stapler before substitution.
Spotnails 56 is a recognized interchangeable reference for Duo-Fast 7600-type 16 gauge 7/16 inch crown staples. Confirm the exact length and tool before ordering.
Yes. Haubold 700 and Prebena Z are established interchange references within the same general 16 gauge 7/16 inch crown fastener class.
No. Crown size alone is not enough to determine compatibility. Confirm gauge, wire width, thickness, magazine design and supported leg length.
The correct length depends on panel thickness, receiving substrate and the applicable fastening schedule. Do not select a specific B7 length solely from a general rule.
Yes. Sheathing is a common application for Duo-Fast 7600 / B7-type medium-crown staples when the fastener meets the panel and construction requirements.
Yes. Crate and box assembly are established applications for this 16 gauge medium-crown fastener class.
Electro-galvanized steel provides corrosion protection for general use, but it should not automatically be specified for long-term exterior, coastal or pressure-treated-lumber applications. Confirm stainless steel or another approved corrosion-resistant material where required.
KYA lists stainless steel among the available B7 material options. Confirm the required length, grade, quantity and tool compatibility when requesting a quotation.
B7 is a heavy 16 gauge medium-crown fastener used for construction and industrial fastening. Common 71 Series staples are lighter fine-wire fasteners used mainly for upholstery and related work. They are not interchangeable.
Provide the required B7 length, material or finish, stapler model, application and purchasing quantity so the correct configuration can be confirmed.
