Free DXF · no sign-up

Free bolt-on tab DXF

No welding. No heat. Just bolt it down. A bolted base on two feet, a swept collar and a lightening slot up the centre: mass comes out where the analysis says the material is not working.

139 sizes, M6 to M20, in SS316 marine stainless, AL7075 aluminium and AL2024 aluminium. Every one is a free flat DXF for laser or waterjet, and every design is load-rated: from 6.75 to 82.32 kN.

Pick your size ↓Open the configurator

optimised bolt-on tab with two-foot base, swept collar and lightening slot

What's in the free DXF

True arcs, no splinesEvery curve is a true arc your CAM follows as an arc, not a chord or a polyline pretending to be a radius.
The whole profileThe two-foot base with its bolt holes, the swept collar, the lightening slot and the load bore, in mm.
One rating, every lengthThe axial rating is constant along the tab length, so any length you pick carries its design's full rating.
Same file as the paid packThe free DXF is the exact file the engine wrote into the rated pack. It cannot drift from the drawing.

Every size · free DXF

139 sizes · 18 rated designs

M6 rated 6.75 kN19 sizes

Material	Plate	Rated load	Free DXF · length L, mm (base bolt to load bolt)
SS316 marine stainless	4 mm	6.75 kN	25 30 35 40 45	configure →
AL7075 aluminium	4 mm	6.75 kN	15 20 25 30 35 40 45	configure →
AL2024 aluminium	4 mm	6.75 kN	15 20 25 30 35 40 45	configure →

M8 rated 12.30 kN15 sizes

Material	Plate	Rated load	Free DXF · length L, mm (base bolt to load bolt)
SS316 marine stainless	5 mm	12.30 kN	25 30 35 40 45	configure →
AL7075 aluminium	5 mm	12.30 kN	25 30 35 40 45	configure →
AL2024 aluminium	5 mm	12.30 kN	25 30 35 40 45	configure →

M10 rated 19.49 kN27 sizes

Material	Plate	Rated load	Free DXF · length L, mm (base bolt to load bolt)
SS316 marine stainless	6 mm	19.49 kN	25 30 35 40 45 50 55 60 65	configure →
AL7075 aluminium	6 mm	19.49 kN	25 30 35 40 45 50 55 60 65	configure →
AL2024 aluminium	6 mm	19.49 kN	25 30 35 40 45 50 55 60 65	configure →

M12 rated 28.32 kN24 sizes

Material	Plate	Rated load	Free DXF · length L, mm (base bolt to load bolt)
SS316 marine stainless	8 mm	28.32 kN	25 30 35 40 45 50 55 60	configure →
AL7075 aluminium	8 mm	28.32 kN	25 30 35 40 45 50 55 60	configure →
AL2024 aluminium	8 mm	28.32 kN	25 30 35 40 45 50 55 60	configure →

M16 rated 52.75 kN30 sizes

Material	Plate	Rated load	Free DXF · length L, mm (base bolt to load bolt)
SS316 marine stainless	10 mm	52.75 kN	30 35 40 45 50 55 60 65 70 75	configure →
AL7075 aluminium	10 mm	52.75 kN	30 35 40 45 50 55 60 65 70 75	configure →
AL2024 aluminium	10 mm	52.75 kN	30 35 40 45 50 55 60 65 70 75	configure →

M20 rated 82.32 kN24 sizes

Material	Plate	Rated load	Free DXF · length L, mm (base bolt to load bolt)
SS316 marine stainless	12 mm	82.32 kN	40 45 50 55 60 65 70 75	configure →
AL7075 aluminium	12 mm	82.32 kN	40 45 50 55 60 65 70 75	configure →
AL2024 aluminium	12 mm	82.32 kN	40 45 50 55 60 65 70 75	configure →

Click a length to download its DXF. The length L is between the bolt centres, base bolt to load bolt, and steps in 5 mm. One design is one bolt, one material and one plate; its rating is the same at every length.

Need it rated on paper?

The DXF is the geometry. The rated pack is the proof: the STEP solid, the rated drawing (A4 vector PDF with the load-rated data block) and the FEA report (stress, deflection, factor of safety, buckling and the method).

R175 per part, VAT included. See a real pack →

Questions

Is the DXF really free?

Yes. Every size on this page downloads as a flat DXF with no sign-up and no payment. The rated pack (STEP solid, rated drawing and FEA report) is the paid part, R175 including VAT.

What is an optimised bolt-on tab?

A tab that bolts down instead of being welded: a bolted base on two feet, a swept collar and a lightening slot up the centre. Mass comes out where the analysis says the material is not working, and what is left is rated by finite-element analysis.

Which sizes are there?

Bolt sizes M6, M8, M10, M12, M16, M20, in SS316 marine stainless, AL7075 aluminium and AL2024 aluminium. Lengths step in 5 mm, and the length L is measured between the bolt centres, base bolt to load bolt, the same figure the part number ends in.

What does the rated load mean?

The static axial pull the design is rated for, from 6.75 kN to 82.32 kN across this range. It is constant along the tab length, so you pick the length you need without re-rating the part.

Is the free DXF itself rated?

The DXF is the geometry only. The rating covers the design and is documented in the rated pack. Making and fitting the part are your check, and so is what you bolt it to.