The rack-side connections in my light-bar build used quarter-twenty hardware. I had to reopen an already tightened section when I needed to insert another slide-in nut.
80/20 3479 Bolt and Slide-In Nut Assemblies appears in my build materials and equipment for this work.
The rack-side connections in my light-bar build used quarter-twenty hardware. I had to reopen an already tightened section when I needed to insert another slide-in nut.
Planning the Rack-Side Nut Insertion Before Tightening
I joined the new light-bar beam to the rack using drilled connectors.
The rack-side connections used quarter-twenty hardware and slide-in nuts.
I reopened an already tightened section when another nut needed to enter through the slot opening.
The profiles and joint hardware during my roof-mount assembly.The drilled connectors and fasteners joining my added extrusion to the roof rack.
My Takeaway from This Job
The insertion sequence mattered before the final tightening step. The bundled bolt-and-nut assembly and separate nut options differ in how the hardware is supplied, while slide-in and roll-in shapes change the access needed during assembly.
The profile, connector shape, bolt and slot nut all contributed to the assembly sequence.
Product Details And Van-Build Uses
Specification
Product Detail
Model
80/20 3479
Thread
1/4-20
Screw
3/4-inch button-head socket screw
The 3479 assembly groups a quarter-twenty button-head screw with a standard slide-in T-nut. Its inch-thread identity is different from the M5 hardware used with many of the 2020 parts in my kit. Keep the exact assembly number with the profile and plate reference in the frame drawing. That avoids mixing similar-looking bolts in the organizer and makes the connection record clearer when both inch and metric extrusion hardware are on the workbench.
No. Keep the 1/4-20 assembly separate from the metric M5 hardware.
Alternative products
Two Alternatives to Compare
The 3204 provides slide-in nuts separately, while the 3923 changes to a roll-in nut format. Both are component alternatives to the bundled bolt-and-nut assembly, with insertion method affecting the assembly sequence.
Product
What distinguishes it
Purchase link
80/20 3479 Bolt and Slide-In Nut Assemblies
Bundled bolt-and-slide-in-nut assembly in my purchases
These quarter-twenty steel T-nuts use a roll-in profile with a ball spring. Their rounded shape provides another insertion arrangement for 10-series extrusion slots.
