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Aeroflow BOW TIE HEX WASHER SEM 5/16-18X1 GARDENER - 10-25280 | TrackTheory
AEROFLOW · GW10-25280 Aeroflow · GW10-25280 BOW TIE HEX WASHER SEM 5/16-18X1 GARDENER - 10-25280 Self-tapping hex washer fastener that locks in and stays put under vibration.
▸ Taps its own thread — no backing nut needed▸ Captive external tooth washer spreads clamp load evenly▸ Serrated washer bites surface to resist backing out▸ 5/16-18 thread pitch suits medium-duty bracket and panel work▸ One-piece SEM construction simplifies installation in tight spaces$7
incl. GST · ships AU-wide
Australian-owned. Stocking circuit racing parts, track-day essentials, and performance upgrades.
BOW TIE HEX WASHER SEM 5/16-18X1 GARDE… $7.26
Add to cart Dispatched in 1-2 business days · 30-day returns
Home Shop Garage Account
“The bite is sharp from the first stop. Compounds where they should be when the rotors come up to temperature.”
Specifications
On the spec sheet. Spec sheet coming — contact support for full spec details. Fitment
Will this fit? Fitment data still being indexed for this product. Ask BuildBot for a fit-check against your vehicle.
Why this part
Cheap fasteners back out. The captive tooth washer on this Aeroflow SEM screw mechanically locks against the substrate the moment it seats, so vibration works against the bite rather than the thread engagement. For sheet metal mounting where a loose fastener means a rattling bracket or a failed accessory mount, the integrated design earns its place over a standard hex head and loose washer combination.
Pairs well with
Other parts in this build. © 2026 TrackTheory · ABN 33 689 482 504 Built in Adelaide · Shipping AU-wide
