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  3. Expandable Diameter Fasteners

Expandable Diameter Fasteners (EDF)

Custom-engineered to expand in a hole to prevent fretting. These fasteners can eliminate the need for expensive close tolerance machining or press fits.

Overview Documents
Expandable Diameter Fasteners
EDF Overview

Typical applications include: Aircraft engine mounting, helicopter blade attachment, mounting of anti-friction bearings, and redesigns requiring a tighter joint. The heart of the fastener is the expandable bushing stack of alternating tapered split bushings.

When a compressive force is applied to the ends of the bushing stack, the diameter of the fastener increases. When the force is relaxed, the bushings return to their original diameter, and the fastener can easily be removed and reused.

The family of expandable diameter fasteners includes: bolts, blind bolts, shafts, and cam-operated pins.

Features & Benefits

Expandable Dia Bolts
Bolts

Expandable Dia Blind Bolts
Blind Bolts

Expandable Dia Shafts
Shafts

Expandable Dia Clamp-Up Bolts
Clamp-Up Bolts

Expandable Dia Pin
Pins

Expandable Dia Handleless Cam
Handleless Cam

Expandable Dia Wrap-Around Cam
Wrap-Around Cam

EDF DocumentsNotes
Expandable Diameter Fasteners (EDF) Catalog
EDF Benefits, Limitations and Installation ProcedureTSB 0015

Shur-Lok Documents

View our technical sales bulletins, quality certificates, catalogs, and manuals.

View Documents

Products

Overview Barrel Nuts Bearing Locknuts Expandable Diameter Fasteners Sandwich Panel Inserts Fluid Fittings Locked Studs and Inserts Advanced Composites Inserts Miscellaneous Fasteners Custom Fit Innovative Solutions

Request a Quote

Fill out our quote form to receive a quote from us.

Request a Quote

Products

Overview Barrel Nuts Bearing Locknuts Expandable Diameter Fasteners Sandwich Panel Inserts Fluid Fittings Locked Studs and Inserts Advanced Composites Inserts Miscellaneous Fasteners Custom Fit Innovative Solutions

Request a Quote

Fill out our quote form to receive a quote from us.

Request a Quote

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