S-90277A155 6-32 x 1 1/4" ASME B18.6.3 Steel Binding Head Slotted Screws
Steel Binding Head Slotted Screws
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Basic Information
Head Parameters
Dimensions
Thread Parameters
Tip & Drive Parameters
Material & Strength
Temperature & Environment
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Key Features & Benefits at a Glance
- Superior corrosion resistance with zinc-plated steel construction, extending service life in harsh industrial environments.
- Excellent holding power from fully threaded UNC coarse thread design, ensuring reliable fastening in various materials.
- High tensile strength of 60,000 psi provides dependable load-bearing capacity for demanding applications.
- Wide rounded binding head distributes clamping force evenly and resists counterbore pull-through.
- Precise Class 2A thread fit guarantees smooth assembly and consistent performance with standard nuts.
- Rockwell B69 hardness offers excellent wear resistance and durability under repetitive stress.
- Slotted drive compatibility allows for quick installation with common hand tools, reducing assembly time.
Professional Applications & Engineering Value
This zinc-plated steel slotted binding head screw is engineered to address critical challenges in industrial assembly, such as vibration loosening and material fatigue. The wide rounded head profile provides a larger bearing surface, preventing damage to softer materials while maintaining secure fastening under dynamic loads. With its fully threaded UNC coarse thread and 60,000 psi tensile strength, it delivers superior pull-out resistance in metal, plastic, and wood substrates—ideal for electrical enclosures, machinery panels, and automotive components. The zinc plating offers a cost-effective barrier against rust and corrosion, ensuring long-term reliability in humid or outdoor settings without compromising the Class 2A thread fit for precision alignment.
Specification Summary & Compliance
This screw features a 6-32 UNC coarse thread with Class 2A tolerance for consistent fit, a length of 1-1/4", and a head diameter of 0.29". It is manufactured in compliance with ASME B18.6.3 standards for dimensional accuracy and performance. The product meets RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) regulatory requirements, ensuring it is free of hazardous substances for safe use in global industrial markets.
