The Artec 4-Bolt Tube Flange is a fabricator's part for building removable tube sections — weld one flange to each tube end, bolt the pair together, and that crossbar, cage tie-in, tube fender, or bumper wing now unbolts whenever you need it out of the way. Each flange is CNC laser cut from 1/4" steel, sized for 1.5" OD tube, with the inner hole left slightly oversized so the tube slips in easily and you get full weld penetration. Sold as a pair, and shaped with actual styling instead of the usual plain donut.
Features
- CNC laser cut from 1/4" steel
- Sized for 1.5" OD tube
- Inner hole slightly oversized for easy slip-in and maximum weld penetration
- Four 3/8" bolt holes per flange
- Distinct Artec styling that looks finished, not generic
- Sold as a pair (2 pieces) — one bolted joint per pair
- Made in the USA
One pair joins two tube ends into a single bolted seam; a tube section that unbolts at both ends needs two pairs. These are weld-on components, so plan for a capable welder and paint the bare steel when the fab work is done. Match them to Artec's 1.5" OD x .250" wall DOM tube for the joining material, and find more fabricator pieces in the Artec Industries lineup and mounts and brackets.
4-Bolt Tube Flange for 1.5 Inch Tube (Pair) FAQs
How many pairs do I need for a removable tube section?
Two pairs. Each pair forms one bolted joint — a flange welded to each tube end, bolted face to face — so a tube that unbolts at both ends needs a pair at each end. If the section only detaches at one end, a single pair does it.
Do I weld these or bolt them?
Both. Each flange welds to a 1.5" OD tube end — the bore is slightly oversized so the tube slips in and you get maximum weld penetration — then the two flanges bolt together through four 3/8" holes. Have a capable welder handle the fab work and paint the bare steel afterward.
What are typical uses?
Any 1.5" tubework you want to come apart: removable cage crossbars, tube bumper wings, tube fenders, light bar hoops, or crossmembers that block access to a transmission or fuel tank. Pair them with 1.5" OD x .250" wall DOM tube for matching material.
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