Bolt Calculation & Analysis vs Bolt Torque Spec Calc

Analyze the strength of fasteners in seconds with the Bolt Analysis App, developed specifically for engineers and technical teams. Easily perform calculations for stress, shear force, torque, tightening force, and safety factors. Key Features: - Fast Bolt Strength Calculations: Instant and accurate results. - Metric & Imperial Support: Complete flexibility for global standards. - Material & Grade Selection: Wide range of material and quality class options. - Torque & Preload Analysis: Advanced calculation tools for secure joints. - User-Friendly Engineering Interface: Clean, intuitive, and practical design. - On-Site & Production Ready: Instant use directly on the field or manufacturing floor. A professional analysis tool tailored for the machinery, automotive, defense, aerospace, and manufacturing industries.

Built for mechanics, millwrights, and equipment installers who need bolt torque on the bench - not a desktop tool. WHAT IT DOES Looks up torque values for standard bolt sizes and grades using the T = K x D x F formula with K = 0.20. SAE grades 2, 5, and 8 across 28 sizes from #6-32 to 1-1/2 inch. Metric classes 4.6, 8.8, 10.9, and 12.9 across 17 sizes from M3 to M36. Dry vs. lubricated multiplier applied to the result. INPUTS - Standard: SAE or Metric - Bolt size (28 SAE or 17 metric sizes available) - Bolt grade or class - Lube condition: Dry or Lubricated RETURNS - Torque in ft-lb - Torque in N·m CALCULATION BASIS - Torque formula: T = 0.20 x D x F - Preload F = 75% of proof strength times tensile stress area - Lubricated multiplier: 0.75 times the dry value WHY THIS APP, NOT THE FREE ONES - Math is shown - formula and assumed K factor visible, not hidden. - 45 size and grade combinations covered in one tap. - Works offline - shop floor, field repair, no Wi-Fi. Always available. - No login. No ads. No telemetry. No subscription. PRICING $1.99. Pay once, own it. Lifetime access on iPhone, iPad, and Mac via Family Sharing. NOT A SUBSTITUTE FOR Manufacturer-specified torque values for safety-critical fasteners. Calibrated wrench certificates. Specific K-factor adjustments for anti-seize, plating, or galvanized threads - this app uses K = 0.20 for both dry and lubricated, with the 0.75x multiplier as the only lube adjustment. Verify against the OEM tightening spec for the specific application.