Truss Phillips Head Self Drilling Screw (TPH)
Product Description
Truss Phillips Head Self Drilling Screws (TPH) feature a large, rounded truss head with a wide bearing surface, ideal for thin metal and light construction applications. Constructed from AISI 1018-1022 carbon steel, these self-drilling screws offer enhanced load distribution and corrosion resistance via customizable finishes. The #8 gauge design balances strength and versatility for light-duty fastening.
Key Technical Parameters
| Parameter |
Specification |
| Material |
AISI 1018-1022 Carbon Steel |
| Case Hardness |
HV 550–800 |
| Core Hardness |
HV 300–450 |
| Carburizing Depth |
0.15 mm |
| Attack Rate |
15 kg / 3 s |
| Torsional Strength |
8#: 50–60 kgf·cm |
| Available Gauge |
#8 |
| Length Range |
13 mm – 75 mm (Customizable) |
| Point Type |
#2 |
| Suitable Material Thickness |
0.9–2.5 mm |
| Finish |
Customizable per customer requirement |
|
Applications
- Light metal framing and sheet metal work
- Roofing and siding thin panel installation
- HVAC system component assembly
- Outdoor light fixtures and signage mounting
- Aluminum and thin steel general fastening
Advantages
- Large truss head distributes pressure evenly, preventing pull-through in thin materials.
- Self-drilling function removes the need for pre-drilling, improving installation efficiency.
- #2 drill point delivers precise penetration for thin metals without damage.
- Lightweight yet durable material suits light-duty applications with cost-effectiveness.
- Customizable finishes enhance rust protection for outdoor and humid environments.
Features
- Phillips drive ensures stable torque transfer and easy installation with standard tools.
- Heat-treated construction maintains structural integrity under dynamic loads.
- Wide head design provides a secure grip on soft or thin substrates.
- Extended length options accommodate stacked thin material assemblies.
- Compact #8 gauge offers versatility for various light industrial and construction tasks.

FAQ
1. Are you trading company or manufacturer ?
We are manufacturer ,You can see the certification.
2. How long is your delivery time?
Generally it is 5-10 days if the goods are in stock. or it is 15-20 days if the goods are not in stock, it is according to quantity.
3. Do you provide samples ? is it free or extra ?
Yes, we could offer the sample for free charge but need pay the cost of freight.
4. What is your terms of payment ?
Payment<=1000USD, 100% in advance. Payment>=1000USD, 50% T/T in advance ,balance before shippment.