# HEX JAM NUT (HEX THIN NUT) DIMENSIONS (METRIC)

"Hex Jam Nut (Hex Thin Nut) Dimensions - Metric" Calculator has been developed to show dimensions of metric hex jam nuts (hex thin nuts) according to the ISO standards.

Some important notes from the ISO standards:

- ISO 4035 specifies the characteristics of chamfered hexagon thin nuts (jam nuts), with threads from M1.6 up to including M64, with product grade A for threads d ≤ M16 and product grade B for threads d > M16.

- Mechanical properties of ISO 4035 hex thin nuts: Steel - M3 ≤ d ≤ M39 - Property class 04, 05 , Stainless steel - d ≤ M24: Property class A2-035, A4-035 , M24 < d ≤ M39 - Property class A2-025, A4-025

- ISO 4036 specifies the characteristics of unchamfered hexagon thin nuts (jam nuts), with threads from M1,6 up to and including M10 and product grade B.

- Mechanical properties of ISO 4036 hex thin nuts: Steel - Minimum hardness 110 HV30

##### Calculator:

 INPUT PARAMETERS Nominal metric hex thin nut (jam nut) size 1.6 2 2.5 3 3.5 4 5 6 8 10 12 14 16 18 20 22 24 27 30 33 36 39 42 45 48 52 56 60 64

 Metric Nut Dimensions Size Product Grade Standard Pitch da dw e m mw s max min min min max min min max min --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- --- ---

##### Definitions:

Product Grade A, Grade B and Grade C: The product grades refer to the size of the tolerances where grade A is the most precise and grade C is the least precise as defined in the ISO 4759-1:2000 standard.

##### Supplements:

 Link Usage Metric Thread Size and Tolerance Calculator Calculates basic major, minor and pitch diameters of the metric external (bolt) thread and internal (nut) thread according to ISO 724:1993 standard. In addition to basic size calculations, tolerance calculations of different tolerance classes can be done according to ISO 965-1:1998 and ISO 965-2:1998 standards. Jam Nut (Hex Thin Nut) Dimensions - Metric Fine Pitch Shows dimensions of a selected jam nut (hex thin nut / locknut) with fine pitch thread. Nut Grades, Identification Markings and Strength (Metric) Shows proof strength and Vickers and Brinell hardness values of metric nuts made of carbon steel and alloy steel.

##### Reference:
• ISO 4035:1999, Hexagon thin nuts (chamfered) — Product grades A and B
• ISO 4036:1999, Hexagon thin nuts (unchamfered) — Product grade B
• ISO 4759-1:2000, Hexagon nuts — Bolts, screws, studs and nuts — Product grades A, B and C