S-91785A546 1/4"-20 x 1 1/2" ASME B18.6.3 Stainless Steel Truss Head Slotted Screws
Stainless Steel Truss 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 thanks to 18-8 Stainless Steel construction and passivated finish, ideal for harsh environments
- Exceptional mechanical strength with 100,000 psi tensile strength and Rockwell B100 hardness for heavy-duty applications
- Maximum holding power provided by fully threaded UNC coarse thread design and Class 2A thread fit
- Enhanced load distribution from the wide rounded truss head profile, reducing surface pressure
- Reliable compatibility with standard slotted drivers and right-hand threading for straightforward installation
- Industry compliance assurance meeting ASME B18.6.3 specifications and environmental regulations
- Optimized for demanding applications with 1-1/2" length providing secure fastening in various material thicknesses
Professional Applications & Engineering Value
These 1/4-20 UNC rounded truss head slotted screws deliver critical performance in industrial settings where corrosion resistance and mechanical integrity are paramount. The 18-8 stainless steel composition, enhanced by passivated finish, provides exceptional protection against rust and chemical exposure in marine, food processing, and outdoor applications. The wide truss head design distributes clamping force over a larger surface area, preventing material damage while the coarse UNC threading ensures rapid installation and superior pull-out resistance in wood, plastic, and metal assemblies. With fully threaded construction and 100,000 psi tensile strength, these fasteners maintain structural integrity under vibration and heavy loads, making them ideal for machinery, electrical enclosures, and structural frameworks requiring reliable, long-term fastening solutions.
Specification Summary & Compliance
This 1/4-20 UNC screw features precision Class 2A thread fit with coarse thread spacing and right-hand threading. Manufactured to ASME B18.6.3 specifications with dimensional accuracy including 0.573" head diameter and 1-1/2" length. Fully compliant with RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental regulations, ensuring safe use across various industries.
