S-90950A105 Length 1 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior holding power with 190 lbs pull-out and 225 lbs shear strength tested in 3,000 psi concrete for reliable performance in demanding masonry applications
• Enhanced corrosion resistance from 410 stainless steel construction, ensuring long-term durability in harsh construction environments
• Easy installation and removal with Phillips drive and right-hand thread design, allowing for quick assembly and disassembly when needed
• Optimal material engagement through 1" thread length and pointed tip, providing secure fastening in concrete, brick, and block substrates
• Clean flush finish with standard flat head profile and 82° countersink angle for professional-looking installations without protruding hardware
• Simplified drilling process using standard 3/16" drill bits, reducing installation time and tooling requirements on job sites
• Environmental compliance assurance with RoHS 3 compliance, meeting international regulatory standards for hazardous substance restrictions

Professional Applications & Engineering Value

These 1/4" Phillips flat head tapping screws are engineered specifically for concrete, brick, and block applications where vibration resistance and structural integrity are critical. The 410 stainless steel construction provides excellent corrosion resistance for both indoor and outdoor construction projects, while the pointed tip design facilitates easier starting and reduces the risk of material cracking during installation. The combination of 1" thread length and right-hand threading ensures maximum grip in masonry materials, preventing loosening under dynamic loads. These heavy-duty fasteners solve common construction challenges by offering reliable performance in 3,000 psi concrete environments, making them ideal for structural applications, facade installations, and infrastructure projects where pull-out and shear strength are paramount considerations.

Specification Summary & Compliance

These tapping screws feature a 1/4" thread diameter with 1" thread length and 1-1/4" overall length, designed with standard right-hand threads for conventional installation. The flat head profile requires an 82° countersink angle for proper flush mounting, while installation requires a 3/16" drill bit with minimum 1" installation depth. The product is manufactured in compliance with RoHS 3 (2015/863/EU) regulations, ensuring environmental responsibility and meeting international standards for hazardous substance restrictions in construction fasteners.