SKT® Coating Performance

Comparing SKT® Coating with Other Brand Coating

Drilling Time and Coating Adhesion Test

This SKT® Coating performance test compares Taiwan Shan Yin SKT® coated screws with other brand coated screws through drilling time and coating adhesion evaluation. The test is designed to help buyers understand how screw surface coating can affect installation performance, drilling efficiency, and coating stability after fastening into wood.

SKT® Coating is Taiwan Shan Yin's patented nano surface coating technology for screws and fasteners. It is developed to support corrosion protection, smoother fastening performance, and stable coating adhesion for construction screws, wood screws, decking screws, and other application-focused fastener products.

▲ Test Sample /

Screw Type: Flat Head Phillips Wood Screw
Size: #10 x 3" (4.8 mm x 75 mm)

Right: SKT® Screw
Left: Other Brand Screw

▶ Test #1: Drill Time ◀

▲ Test Method /

Loading: 9 kg

Speed: 1,800 RPM

Test Material: Beech Wood

In this drill time test, SKT® coated screws and other brand coated screws were drilled into beech wood under the same loading and rotation speed. The purpose of the test is to compare installation efficiency and evaluate whether the coating surface helps reduce drilling resistance during wood fastening.

▲ Result /

The SKT® screw has a smoother surface, which helps reduce drilling time during wood screw installation. (✔)

This result shows that coating surface condition can influence drilling efficiency. For professional construction and woodworking applications, smoother screw installation may help improve working efficiency and fastening consistency.

▲ Reference Video /
Drill Time Test:
https://youtu.be/8s7vw4HCWWs

▶ Test #2: Coating Adhesion ◀

▲ Test Method /

SKT® coated screws and other brand coated screws were fully drilled into beech wood and then removed. The coating condition of both screws was observed after installation and removal.

The purpose of this coating adhesion test is to evaluate whether the coating remains stable after drilling into and removing from wood. Coating adhesion is important for coated screws used in construction, decking, outdoor wood, and other fastening applications where surface protection and product consistency are required.

▲ Result /
1. No visible peeling was observed on SKT® screws after drilling into and removing from the wood, indicating stable adhesion of SKT® Coating. (✔)
2. Visible peeling was observed on the other brand coated screws. (✘)

Based on the test observation, SKT® Coating maintained better coating adhesion after the screw was installed into and removed from beech wood. This supports the use of SKT® coated screws for buyers looking for coated fasteners with stable surface performance in wood fastening applications.

▲ Reference Video /
Adhesion Test:
https://youtu.be/8s7vw4HCWWs

This R&D testing report demonstrates Taiwan Shan Yin's product testing approach for SKT® Coating screws. Through drilling time and coating adhesion comparison, buyers can better understand the application performance of SKT® coated screws for wood fastening, construction screws, decking screws, and customized fastener projects.