Timber Formwork Assembly
Temporary connections between timber formwork components where nail removal is part of the dismantling process.
BEST Hardware · Double Head Nails
Duplex Nails Manufacturer for Wholesale & OEM Supply
Duplex nails, also called double head nails, are used for temporary timber fastening where later removal matters. The lower head seats against the timber while the upper head remains accessible for pulling.
Dingzhou Best supplies duplex nails for importers, hardware wholesalers and construction-material distributors. Send your dimensions, head details, finish requirements and packing needs for a FOB quotation.
- MOQ
- 5 tons or 200 cartons
- Customization
- OEM / ODM support
- Typical production lead time
- 15–25 days*
- Sea freight
- FCL / LCL
*Subject to specifications, order quantity, packaging and production schedule.
Two Heads for Temporary Timber Connections
The double-head design separates the seating position from the removal point. This makes duplex nails relevant when timber components will be dismantled after use.
- Lower head: seating position
- The lower head bears against the timber surface when the nail is installed as intended.
- Upper head: removal access
- The upper head stays above the surface to provide a gripping point for a suitable pulling tool.
- Head spacing: a purchasing detail
- Confirm both head dimensions and their spacing with a drawing or reference sample before ordering.
Where Duplex Nails Are Used
Temporary Timber Bracing
Timber connections intended to be removed after the temporary work is complete, subject to the specified connection design.
Removable Timber Assemblies
Temporary wooden assemblies where access to the nail head helps with later disassembly.
“Formwork nail” does not mean a nail for direct fastening into concrete. Select the fastener according to the timber connection, loads and project requirements. The double-head design alone does not establish load capacity or suitability for a structural connection.
Specify More Than the Nail Size Name
A complete duplex nail inquiry should identify the length measurement reference, shank diameter and double-head geometry. If you use a penny-size designation, include the corresponding dimensions or a reference sample.
| Item | Details to provide |
|---|---|
| Length | State overall length or length below the lower head; show the measurement reference. |
| Shank diameter | Provide the diameter in mm or inches and any required tolerance. |
| Double-head dimensions | Upper head diameter, lower head diameter and head spacing. |
| Shank and point | Specify the required design or provide a drawing or sample. |
| Material and finish | State your requirements for review and quotation. |
| Acceptance requirements | Identify dimensional, appearance, performance or documentation requirements. |
| Quantity and packing | Quantity by size, inner pack weight, carton weight and branding. |
This checklist defines the inquiry information. Available dimensions, materials, finishes and tolerances are confirmed in the quotation and approved order specification.
Duplex Nails or Common Nails?
Start with whether the timber assembly will remain in place or needs to be dismantled. Then confirm the connection specification.
| Selection point | Duplex nails | Common nails |
|---|---|---|
| Head design | Two heads on one shank | Single head |
| Typical purchasing purpose | Temporary timber fastening with later removal | General timber fastening |
| Removal access | Upper head remains exposed when installed as intended | No separate upper removal head |
| Specification focus | Length reference, shank dimensions, both heads and head spacing | Length, shank dimensions and head design |
Agree the Packing Alongside the Product
Importers and distributors need a clear packing specification as well as the correct nail. Send your preferred pack format, net weight and label requirements with the product inquiry.
- Inner pack format and net weight
- Number of inner packs and net weight per outer carton
- Size identification and length measurement convention
- Brand logo, label language and carton marks
- Pallet and shipment packing requirements, if needed
OEM / ODM support includes product, packaging and branding customization. The final packing configuration is subject to confirmation for your order.
Explore custom nail packagingFrom Sample Review to Wholesale Order
Confirm the Product
Review dimensions, double-head geometry, material, finish and acceptance requirements. Samples are available for quality checking. A basic sample charge normally applies; any refund or deduction can be discussed with the formal order.
Confirm the Order
MOQ is 5 tons or 200 cartons. Trial orders are supported. FOB pricing is based on the confirmed product specification, quantity and packing requirement.
Plan Production and Shipping
Production usually takes 15–25 days, depending on specifications, quantity, packaging and production arrangements. Sea freight is supported by FCL or LCL.
Duplex Nail Purchasing Questions
Are duplex nails and double head nails the same?
Yes. Both names describe a nail with two heads on the same shank. The lower head seats against the timber, while the upper head provides access for later removal.
Are duplex nails intended to be driven into concrete?
Duplex nails are commonly associated with timber formwork assembly. That does not make them concrete nails. For direct masonry fastening, review the appropriate product and confirm suitability for the substrate and fixing requirements.
Review concrete nail productsHow should I specify duplex nail length?
State whether you mean overall length or length below the lower head. Include a dimensioned drawing or sample where possible, and confirm head spacing separately.
Can I request a specific material or surface finish?
Send your required material, finish and any applicable acceptance criteria. Availability and production requirements will be reviewed before quotation.
Can you supply private-label packaging?
OEM packaging and branding are supported. Provide your pack format, weight requirements, logo artwork and carton marks for confirmation.
What is the minimum order quantity?
Our MOQ is 5 tons or 200 cartons. Send your size list and packing requirements so we can confirm the order details. Trial orders are supported.
Can I request samples before ordering?
Yes. Samples are available for quality checking. A basic sample fee normally applies. Any refund or deduction can be discussed with the formal order.
Request a Duplex Nail FOB Quote
Send your purchasing list or reference sample details. We will review the specification and packing requirements before preparing a quotation.
- Length and measurement reference
- Shank diameter and design
- Both head dimensions and head spacing
- Material and finish requirements
- Quantity by specification
- Packing, branding and destination port if available
Email: [email protected]
WhatsApp: +86 18331066290