Slt,
En aviation on utilise des anchor-nuts & des rivnuts voir
rivnuts
http://www.aircraftspruce.com/catalog/h ... ivnuts.php
anchor-nut
http://www.aircraftspruce.com/menus/ha/nuts.html
Les pas sont toujour de l'UNF pour rentrer dans les normes
AN (army-navy) ou NAS (navy-army-joint-services)
Je pense donc que c'est du pas UNC (gros pas dis aussi SAE que
l'on retrouve ici sur beaucoup de petit moteurs)
Exemples trouvés avec google ( anchor-nut & rivnuts)
cgi.cafr.ebay.ca/NEW-3-1-THREADED-INSERT-ANCHOR-NUT-BLIND- RIVET-TOOL_W0QQitemZ38008382...
texte de la 1° image a noter le pas de 10-24
NEW 3 - 1 THREADED INSERT ANCHOR NUT BLIND RIVET TOOL. SET THREADED INSERT RIVET NUTS, ANCHOR NUTS, AND BLIND RIVETS WITH ONE TOOL INTO METAL, PLASTIC OR FIBERGLASS. RIVET TOOL INCLUDES RIVET HEAD WITH NOSE PIECES FOR 3/32, 1/8, 5/32 AND 3/16 INCH BLIND POP RIVETS AND A THREADED INSERT RIVET NUT HEAD WITH MANDRELS TO SET #6-32, #8-32, #10-24 AND 1/4-20 MACHINE THREAD SCREWS AND TWO ANCHOR MANDREL LENGTHS: 1-1/4 INCH & 2-3/8 INCH. EASILY CHANGED BETWEEN FUNCTIONS. TOOL COLORS VARY.
TO INSTALL THREADED INSERT RIVET NUTS: DRILL HOLE INTO MATERIAL. SCREW ON THREADED INSERT ON TOOL. SQUEEZE HANDLE UNTIL INSERT IS SET. TURN KNOB COUNTERCLOCKWISE UNTIL RELEASED. INSERTS SOLD SEPARATELY. A UNIVERSAL ASSET FOR EVERYONE'S TOOL BOX TAKING UP VERY LITTLE SPACE. APPLICATIONS INCLUDE BUT ARE NOT LIMITED TO AUTOMOTIVE, AGRICULTURAL, AIRCRAFT, MOTORCYCLES, GO-KARTS, SNOWMOBILES, RV, AND MODEL REPAIRS.
2° image:Rivnut-driver
3° la pince ebay
@+
pierre