
Factory direct
Request quote for pricing
D31-ST-50 Steel Framing Nail 1-Box (400pcs)
Available โ request lead time
Get quoteD29

Industrial machinery
Request a quote
Factory-direct pricing ยท EXW Yiwu
Available โ confirm lead time with sales
Get quoteThe ST-38 heavy steel framing nail serves professional framers who regularly work with extra-thick or multi-layered moulding profiles. Its 36.7 mm total length offers maximum mechanical bond strength without the need for adhesive in most applications.
Barn wood frames, reclaimed timber artwork, wide shadow boxes, and thick gilded mouldings all benefit from the ST-38’s extended penetration depth.
Total length: 36.7 mm | Wire diameter: 2.3 mm | Head width: 6.3 mm | Head thickness: 1.7 mm | Quantity: 400 pcs/box | Weight: 460 g/box | Boxes per carton: 20.
Works with all ST-series nailers accepting 6.3 mm head width nails. The longer shank may require a slightly higher air pressure setting compared to shorter ST nails.
Pre-clamp moulding corners with a frame vise before nailing to ensure a tight mitre join, especially in hardwoods where spring-back is common.
Check out our complete ST steel nail series for all moulding sizes. Learn more framing techniques at PPFA.com.
| SKU | D29 |
|---|---|
| Product Type | hardware |
| MOQ | 100 |
| Lead Time | 7-10days |
| Overview | <p>The ST-38 heavy steel framing nail is built for extra-thick mouldings and structural frame joins. At 36.7 mm total length, it provides deep mechanical anchoring for wide-profile hardwood frames, barn wood frames, and reclaimed lumber artwork.</p> |
| Highlights | 36.7mm ยท Extra thick stock |
| Custom Packaging | Yes |
| Nail Type | ST Steel Nail |
| Model | ST-38 |
| Total Length | 36.7 mm |
| Wire Diameter | 2.3 mm |
| Head Width | 6.3 mm |
| Head Thickness | 1.7 mm |
| Qty per Box | 400 pcs |
| Weight per Box | 460 g |
| โ | 8 |
|---|
What is the maximum moulding thickness for ST-38 nails?
ST-38 nails can effectively join mouldings up to 35 mm thick, giving a solid 1โ2 mm countersink without breakthrough.
What pressure setting is recommended for ST-38 nails?
Set your pneumatic nailer to 85โ100 PSI for dense hardwoods, or 70โ80 PSI for softwood and MDF profiles.
How does ST-38 compare to ST-32?
ST-38 is 5.4 mm longer than ST-32, providing greater penetration depth for extra-thick or stacked moulding assemblies.

Factory direct
Request quote for pricing
Available โ request lead time
Get quote
Factory direct
Request quote for pricing
Available โ request lead time
Get quote
Factory direct
Request quote for pricing
Available โ request lead time
Get quote
Factory direct
Request quote for pricing
Available โ request lead time
Get quoteView all in Framing Machinery & Consumables / Staples / Brads / 23 Gauge Pins โ