S-90044A206 1/4"-32 x 1 1/2" ASTM A574 Alloy Steel Socket Head Screws
Alloy Steel Socket Head 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
- Exceptional tensile strength of 170,000 psi ensures reliable performance under high-stress conditions
- Precision Class 3A thread fit provides superior engagement and vibration resistance in critical applications
- Black-oxide surface treatment on alloy steel offers enhanced corrosion protection for extended service life
- Extra fine UNEF threading (32 TPI) delivers finer adjustment capabilities and improved load distribution
- Hex socket drive design allows for high torque application and secure installation in confined spaces
- Full-threaded construction maximizes grip length and provides consistent holding power along the entire fastener
- Industry compliance with ASTM A574, RoHS 3, and REACH ensures material quality and environmental responsibility
Professional Applications & Engineering Value
Engineered for demanding industrial environments, these socket head cap screws with black-oxide alloy steel construction address critical challenges in precision machinery and equipment assembly. The extra fine UNEF threading (1/4"-32) provides superior resistance to vibrational loosening while enabling micro-adjustments in sensitive applications. The Class 3A thread fit guarantees precise mating with tapped holes, eliminating play in high-precision assemblies. The combination of Rockwell C37 hardness and 170,000 psi tensile strength ensures these fasteners maintain integrity in heavy-load scenarios, from automotive components to industrial automation systems. The corrosion-resistant black-oxide finish extends service life in moderate environmental conditions without compromising dimensional accuracy.
Specification Summary & Compliance
This socket head cap screw features precision Class 3A thread fit with UNEF (Unified Extra Fine) thread form, manufactured to ASTM A574 specification for alloy steel socket head cap screws. The fastener maintains dimensional compliance with inch system requirements, including 1-1/2" length, 3/16" hex drive, and standard socket head profile. Regulatory compliance includes RoHS 3 (2015/863/EU) and REACH (EC 1907/2006) environmental standards, ensuring material safety and restricted substance adherence for global industrial applications.
