Aluminum Alloy Tri-fold Exploding Pop Rivets

What is a Tri-Fold rivet?

Tri-Fold rivet is an all-aluminium slotted body rivet which makes it suitable for lightweight applications, form three large folding legs, which are distributed over a larger area, dispersing the load on the riveting surface.

Tri-Fold rivets are also known as Bulbex®, Tri-Folding, and Bulb-Lite® rivets.

Full stainless steel tri-fold blind rivet is customized according to our clients' request. Stainless steel provides high strength and good anti-corrosion. Meanwhile, not likely aluminum tri-fold rivets, the special structure make three wings not upwarp, so that the clamping force is stronger.  

• Tri-fold type providing large bearing area at blind side.
• Distribute clamp force evenly and gently onto the riveted material, suitable for soft applications.
• Lightweight, all aluminum construction for corrosion resistance.

How Do Exploding Pop Rivets Work?

Aluminum Dome/ Large Flange Tri Fold Blind Rivets

RIVET DIAMETER /mm	RIVET LENGTH /mm	GRIP RANGE /mm	HEAD DIAMETER /mm	HEAD HEIGHT /mm	MANDREL DIAMETER /mm	MANDREL LENGTH /mm	HOLE SIZE /mm	SHEAR /N	TENSILE /N
D1	L		D2	k	d	p	DRILL
	+1/-0	MIN.-MAX.		±0.2	MAX.	MIN.		MIN.	MIN.
3.2 +0.08 -0.15	14.0	1.0-4.0	5.8-6.4	1.2	1.80	27.00	3.3-3.5	530 N	630 N
	17.0	3.0-7.0
	20.0	5.0-10.0
4.0 +0.08 -0.15	14.0	1.0-3.0	7.8-8.3	1.7	2.30	27.00	4.2-4.4	600 N	700 N
	16.0	1.0-5.0
	18.8	1.5-7.5
	20.8	1.5-9.5
	25.0	2.0-13.0
	20.0	1.5-9.5	11.8-12.2	1.6	2.30	27.00	4.2-4.4	600 N	700 N
4.8 +0.08 -0.15	16.0	1.0-4.0	9.7-10.3	2.0	2.80	28.00	4.9-5.1	800 N	1100 N
	18.0	1.0-6.0
	21.0	1.0-9.0
	25.0	1.5-12.5
	30.0	5.0-15.0
	21.0	1.0-8.5	15.8-16.2	2.0	2.80	28.00	4.9-5.1	800 N	1100 N
	25.0	1.0-12.5
6.4 +0.08 -0.15	16.0	1.0-4.0	13.7-14.3	2.7	3.8	30.00	6.5-6.7	2000 N	2600 N
	20.0	1.0-8.5
	23.0	1.5-10.5

Production Process

Step 1

Blind rivet machine---making the rivet body

Step 2

Nail making machine---making the mandrel

Step 3

Assembly machine--finish the assembly of rivet body and the mandrel

Package

Provide OEM service.

Regular package is small box+ carton+ pallet, or bulk in carton, each carton weights 20-25kgs. 

Borie Fasteners can also provide custom packaging service, such as poly bag or plastic bag with client's logo and information. 

Application

 It is widely used in automobiles, dashboards, golf bags, plastics, gift factories. It is easy to operate, beautiful in appearance, and can be riveted on one side.