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POST
Bolt Torque Calculator

Authorizations

Authorization
string
header
required

Bearer authentication header of the form Bearer <token>, where <token> is your auth token.

Body

application/json
ioMode
enum<string>

Preload source

Available options:
grade,
preload
ioThread
enum<string>

Thread size

Available options:
M3,
M4,
M5,
M6,
M8,
M8x1,
M10,
M10x1.25,
M12,
M12x1.25,
M14,
M16,
M16x1.5,
M18,
M20,
M20x1.5,
M22,
M24,
M27,
M30,
M33,
M36,
1/4-20,
5/16-18,
3/8-16,
1/2-13,
5/8-11,
3/4-10,
custom
ioDiameter
number

Nominal diameter (mm)

Required range: 0.5 <= x <= 200
ioStressArea
number

Tensile stress area Aₛ (mm²)

Required range: 0.1 <= x <= 40000
ioGrade
enum<string>

Bolt grade / property class

Available options:
4.6,
4.8,
5.8,
8.8,
9.8,
10.9,
12.9,
A2-70,
A2-80,
SAE5,
SAE8
ioPreloadPercent
number

Preload target (% of proof load)

Required range: 25 <= x <= 100
ioPreload
number

Target preload F (N)

Required range: 1 <= x <= 10000000
ioCondition
enum<string>

Joint condition (nut factor K)

Available options:
0.30,
0.25,
0.22,
0.20,
0.18,
0.16,
0.12,
0.10,
custom
ioNutFactor
number

Nut factor K

Required range: 0.01 <= x <= 1

Response

Tool output

tool
string
required
tool_version
string
required

Output-contract version for this tool. Currently "1" for all tools.

outputs
object
required
credits_used
integer
required

Credits this call consumed, after any settlement refund. 0 when metering is disabled.

request_id
string
credits_remaining
integer | null

Credits left in the current monthly allowance, or null when metering is disabled.