Engineering moduleindicative

Bolt Design Analysis

Design standard

Calculation standard

Sets screening knobs for Indicative practice — not product type or catalog geometry

Standard SF / load factors for bolts, welds, and pins. Does not select designation or weld type.

Target SF 2.00

Reference standards

ISO 898-1DIN EN ISO 4014ANSI/AISC 360ASME B1.1Machinery's Handbook

Power and ball screw analysis moved to Power & Ball Screws.

Analysis mode

Preloaded joint (VDI 2230)

Single-bolt worksheet: resiliences, load factor, assembly preload, tightening torque, slip, fatigue and bearing pressure.

Bolt size (ISO coarse)Property class (ISO 898-1)Tightening method (scatter αA)

Clamp length lK

Axial working load FA

Transverse load FQ

Thread/head friction μG = μK

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Interface friction μT

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Reference documentation

Standards, catalogs, and technical write-ups relevant to this module.

Candidate strategy

Typical Auto-design directions for bolt calculator — compare light, balanced, and conservative sizing before committing to Validate.

Option	Basis	Pass	Tradeoff
Small fastener	Minimum geometry	Check bearing	Compact pattern
Recommended fastener	Balanced utilization	Pass expected	Standard hardware
Heavy fastener	High reserve	High margin	More space/cost

Continue workflow

Typical next steps after Bolt Calculator