Math & Numbers

Bolt Torque Clamp Force Calculator

Convert between bolt tightening torque and axial clamp force. T = K·F·d, where K is the nut factor (~0.20 for dry steel). Solve torque from force, or force from torque.

json· JSON resultOpen tool

Quick start

Call this tool from your code in three languages.

cURL

curl -X POST 'https://api.elysiatools.com/en/api/tools/bolt-torque-clamp-force' \
  -H 'Content-Type: application/json' \
  -d '{"mode":"torque","K":0.2,"F":50,"d":10,"T":0,"decimalPlaces":4}'

API reference

Send a POST request with your inputs as JSON. File parameters require a separate upload first.

Endpoint

HTTP

POST https://api.elysiatools.com/en/api/tools/bolt-torque-clamp-force

Parameters

Name	Type	Required	Description
mode	select	No	—
K	number	Yes	Dimensionless nut factor. Typical: 0.20 dry steel, 0.15 lubricated, 0.13 with moly.
F	number	No	Axial clamp force in kN. Required in Torque mode.
d	number	Yes	—
T	number	No	Applied wrench torque in N·m. Required in Force mode.

MCP integration

Add this tool to your Model Context Protocol server so AI agents can list and call it.

Server configuration

Add this block to your MCP client configuration:

mcp.json

{
  "mcpServers": {
    "elysiatools-bolt-torque-clamp-force": {
      "name": "bolt-torque-clamp-force",
      "description": "Convert between bolt tightening torque and axial clamp force. T = K·F·d, where K is the nut factor (~0.20 for dry steel). Solve torque from force, or force from torque.",
      "baseUrl": "https://api.elysiatools.com/mcp/sse?toolId=bolt-torque-clamp-force",
      "command": "",
      "args": [],
      "env": {},
      "isActive": true,
      "type": "sse"
    }
  }
}

List available tools

After connecting to the SSE endpoint, list the exposed tools:

tools/list

{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/list"
}

Call this tool

Invoke the tool by its id, passing arguments built from its parameters:

tools/call

{
  "jsonrpc": "2.0",
  "id": 2,
  "method": "tools/call",
  "params": {
    "name": "bolt-torque-clamp-force",
    "arguments": {
  "mode": "torque",
  "K": 0.2,
  "F": 50,
  "d": 10,
  "T": 0,
  "decimalPlaces": 4
}
  }
}

Chain multiple tools in one session with a comma-separated toolId list, e.g. /mcp/sse?toolId=png-to-webp,jpg-to-webp,gif-to-webp (max 20).

Questions or issues? Contact [email protected]

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