S-91465A248 3/4"-10 x 3 3/4" ASTM A307 Square Head Screws
Square 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
- Enhanced Durability – ASTM A307 Grade A steel construction provides reliable performance in demanding industrial environments.
- High Tensile Strength – 60,000 psi tensile strength ensures secure fastening under moderate loads and stresses.
- Easy Installation & Removal – External square drive head allows for quick, firm engagement with standard wrenches.
- Coarse Thread Advantage – UNC coarse threading resists stripping and enables faster assembly in various materials.
- Precision Thread Fit – Unified Standard Class 2A thread fit guarantees consistent, reliable engagement with mating parts.
- Regulatory Compliance – RoHS 3 (2015/863/EU) compliant, meeting environmental and safety standards for global use.
- Optimized Thread Length – Partially threaded design with minimum 1 3/4" thread length provides flexibility in clamping applications.
Professional Applications & Engineering Value
This 3/4"-10 UNC square head screw is engineered for industrial applications where reliable, heavy-duty fastening is critical. Manufactured from ASTM A307 Grade A steel, it delivers consistent performance in construction, machinery assembly, and structural frameworks. The coarse thread design reduces cross-threading risks and ensures secure holding power in wood, metal, and composite materials. With a Rockwell B69 hardness and 60,000 psi tensile strength, it withstands vibrational forces and moderate stress without premature failure. The external square drive head offers superior torque transmission, making it ideal for high-torque applications where slippage is a concern. Its partially threaded shank allows for precise clamping control, while right-hand threading ensures compatibility with standard installation tools and procedures.
Specification Summary & Compliance
This screw adheres to Unified Standard Class 2A thread tolerances for precise fit and interchangeability. It meets ASTM A307 specifications for low-strength fasteners and is RoHS 3 (2015/863/EU) compliant, ensuring it is free from hazardous substances. The inch-based dimensions include a 3/4"-10 UNC thread size, 3 3/4" length, and coarse thread spacing, manufactured to industrial standards for consistent quality and performance.
