Brass Nuts to DIN / ISO · Jamnagar, India

DIN 439 Brass Thin Hex Nut

Thin hexagon nut, chamfered (ISO 4035) — machined in brass CW614N to standard and to your drawing.

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A DIN 439 nut is a thin (low-profile) chamfered hexagon nut about 0.5×d high, commonly used as a jam nut or lock nut; DIN 439 Part 2 (chamfered) corresponds to ISO 4035. Brassland machines it from free-cutting brass CW614N (CuZn39Pb3) — or lead-free CW724R — to the standard and to your drawing, as part of our brass nut programme.

DIN 439 brass thin hex nut — engineering drawing

DIN 439 — engineering drawing (Brassland). Plan view and section with dimension references.

Specification

StandardDIN 439
TypeThin hexagon nut, chamfered (ISO 4035)
ThreadM3–M16; larger on request
MaterialCW614N (CuZn39Pb3); lead-free CW724R on request
CertificateEN 10204 3.1 per shipment; 3.2 on request

Datasheet — dimensions to DIN 439

Thread dWidth A/F sAcross corners eHeight m
M35.56.01.8
M477.72.2
M588.82.7
M61011.13.2
M81314.44
M101617.85
M121820.06
M162426.88

Dimensions in mm to DIN 439. Widths across flats follow the current ISO series (M10/M12/M14 = 16/18/21 mm; older DIN editions used 17/19/22 mm). Sizes and tolerances are made to your drawing on request.

Applications

Typical applications for the Brass Thin Hex Nut include locking a primary nut (jam-nut pair), low-clearance assemblies, retaining position on threaded rod, sensor and instrument mounting, and cable-gland back-nuts. As all parts are made to order, sizes, threads, plating and certification are tailored to your specification.

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Specifying a Brass Fitting

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Frequently asked questions

What is a DIN 439 nut used for?

It is a thin nut used mainly as a jam or lock nut — tightened against a standard nut to lock it — and wherever a full-height nut will not fit.

What is the difference between DIN 439 and DIN 934?

Height. A DIN 439 thin nut is about 0.5×d tall; a DIN 934 standard nut is about 0.8×d. The across-flats and thread are otherwise the same.

Is DIN 439 the same as ISO 4035?

DIN 439 Part 2 (chamfered) corresponds to ISO 4035. The two are dimensionally equivalent for the common sizes.

Can two DIN 439 nuts lock a thread?

Yes — two thin nuts tightened against each other (a jam-nut pair) is a classic mechanical locking method on threaded rod.

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