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Ultra-Thin Head Anti-Loosening Joint Screw

The same ultra-thin head joint screw supplied through the precision screw range, with head thickness tolerance and recess consistency controlled for small pivots.

Key specifications

Installationelectric driver; no more than five reuses
StandardISO 2320 (prevailing torque fasteners)
Typical substratebattery packs, controllers, rail interiors
Key inspectionsprevailing torque, patch length, thread gauging
Head TypeUltra Low Profile / CD-textured

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Product overviewOverview

A nylon patch works by elastic interference. Micro pivots work to hundredths of a millimetre, so head thickness is sampled per lot rather than released on drawing alone. Assembly is usually by electric driver, where a worn recess slips early, so recess depth and wall squareness are release criteria on this size.

installed by electric driver; no more than five reuses.

Key featuresFeatures

Head thickness sampled per lot, recess depth controlled separately.
Stable performance for up to five assemblies; replace after that.
Elastic interference from the patch adds friction inside the thread pair.
No axial space needed, so it suits countersunk and low-profile heads.

Typical applicationsApplications

Rail interior and equipment brackets
Hydraulic lines on construction machinery
Appliances and office equipment

Selection notesSelection

Nylon softens above about 120 °C; for hot locations use an all-metal locking feature or a high-temperature coating.

Frequently asked questionsFAQ

Why does recess depth matter on a thin head?

The thinner the head, the less material remains between the recess bottom and the bearing face. Too little and the driver pushes through the head, so recess depth is measured together with the torque limit.

What matters during installation of the Ultra-Thin Head Anti-Loosening Joint Screw?

Drive it with an electric screwdriver, and retire the screw after five uses. Head thickness sampled per lot, recess depth controlled separately.

Specifications

Head Type	Ultra Low Profile / CD-textured
Standard	ISO 2320 (prevailing torque fasteners)
Installation	electric driver; no more than five reuses
Typical substrate	battery packs, controllers, rail interiors
Key inspections	prevailing torque, patch length, thread gauging

Manufacturing and inspection

Hot-service parts are aged before breakaway torque is re-tested.Material certificates and dimensional records accompany each lot; material and dimensional records are supplied per batch.