S-90161A395 Length 2 1/4" Tapping Screws

Key Features & Benefits at a Glance

• Superior corrosion resistance with silver-coated steel construction, ensuring long-term durability in harsh construction environments.
• High pull-out strength of 170 lbs provides reliable anchoring in concrete, brick, and block applications.
• Exceptional shear strength of 210 lbs offers enhanced stability and load-bearing capacity for structural integrity.
• Precision-engineered flat head with Phillips drive allows for flush installation and easy, secure fastening.
• Optimized thread design and pointed tip ensures quick, self-tapping installation without pre-tapping, saving time and labor.
• Tested in 3,500 psi concrete guarantees performance in high-strength masonry, reducing the risk of failure.
• RoHS 3 compliance meets environmental regulations, supporting sustainable and safe manufacturing practices.

Professional Applications & Engineering Value

This 5/16" tapping screw is engineered for demanding concrete, brick, and block applications, where reliable anchoring is critical. The silver corrosion-resistant coated steel material combats rust and degradation, extending service life in moist or outdoor settings. Its right-hand thread and pointed tip facilitate easy insertion, minimizing installation effort and preventing material splitting. With a flat head profile and Phillips drive style, it ensures a secure, flush fit that enhances aesthetic appeal and safety. Ideal for construction and masonry projects, this screw addresses common issues like loosening under vibration and environmental wear, providing a robust solution for permanent or removable fixtures in commercial and industrial structures.

Specification Summary & Compliance

This screw features precise dimensions: 5/16" thread diameter, 2-1/4" length, and 1-1/2" thread length, with a standard flat head and 82° countersink angle for proper seating. It adheres to common tapping screw standards for right-hand threads and is tested in 3,500 psi concrete to validate performance. Compliant with RoHS 3 (2015/863/EU), it meets environmental regulations, ensuring safe use in various industrial applications without hazardous substances.