ST3.5 Self Drilling Screw with Phillips Indented Hex Washer Head

C-1022 Material Self-Drilling Fastener with 18 Ribs Under Head for Metal-to-Metal Applications

Self Drilling Screw - Self Drilling Screw
  • Self Drilling Screw - Self Drilling Screw

Self Drilling Screw

TK-HWHHT-35000_18T

Fastener Sizes

ST3.5

Material
C-1022
Screw Points

Self-Drilling

Drive Types

Phillips Indented Hex Washer Head

Head Styles

Hex Head

Screw Thread Design

18 Ribs Under Head

Order information
  • Minimum Order: Per Item 100M/Order USD 5,000
  • Branded Product, Buyer's Label Offered
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How Can Self Drilling Screws with 18 Ribs Improve Metal Roof Installation Efficiency?

Our ST3.5 self drilling screws with 18 ribs under the hex washer head eliminate pre-drilling steps and provide superior weather sealing for metal building applications. The integrated drilling point penetrates metal substrates directly while the 18-rib design creates a tight seal against water infiltration. Contact us to discuss volume pricing for your next metal building project and reduce installation time by up to 40%.

With over 30 years of manufacturing expertise, our self drilling screws meet stringent quality standards and are available with buyer's label options for branded product requirements. The minimum order quantity is 100,000 pieces per item with a USD 5,000 minimum order value, making this solution ideal for large-scale construction projects, industrial equipment manufacturing, and distribution partners. Our ISO 14064-1:2018 and ISO 14067 certifications demonstrate our commitment to sustainable manufacturing practices while delivering the stable quality and long-term reliability that global OEM and construction markets demand.