Online Exporter ASTM A193 B7 All Threaded Stud Bolts Wholesale to Montpellier

ASTM A193/A193M B7 All Threaded Stud Bolts

API 6A 6D Flange Valve Wellhead ASME/ANSI Flange All Thread Stud Bolts

Alloy steel bolting for pressure vessels, valves, flanges, and fittings for high temperature or high pressure service, or other special purpose applications.

Standard: IFI-136, ASME B16.5, DIN976

Inch Size: 1/4”-4” with various lengths

Metric Size: M6-M100 with various lengths

Other Available Grade:

ASTM A193/A193M B7, B7M, B16, B8 Class 1 & 2, B8M Class 1 & 2,

ASTM A320/A320M L7, L7M, L43, B8 Class 1 & 2, B8M Class 1 & 2, and so on.

Finish: Plain, Black Oxide, Zinc Plated, Zinc Nickel Plated, Cadmium Plated, PTFE etc.

Packing: Bulk about 25 kgs each carton, 36 cartons each pallet

Advantage: High Quality and Strict Quality Control, Competitive Price,Timely Delivery; Technical Support, Supply Test Reports

Please feel free to contact us for more details.


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    I finished one motor and pinion and this is a run through on how to install a 1/8″ (3.17mm) bore pinion on to the 2.3mm motor shaft of a 380 brushed motor. The pinion gear is RC4WD brand 12t, 32p, long steel pinion gear. Different, shorter set screws will be required (M3 x 0.5 x 3mm). I chose stainless steel set screws. 32 pitch pinions for 2.3mm bore motor shafts are very hard to find and you would probably have to have it custom made if you don’t want to adapt a 1/8″ (3.17mm) bore pinion. Pinion height is important to align the pinion correctly to the gearbox. I measured from the top of the pinion to the front cover of the original pinion and motor mount which is approximately a 66.9 – 67mm distance. I mistakenly said 70mm but approximately 67mm is actually correct. The 1/8″ to 3/32″ (2.4mm) adapter bushing is NWSL brand (osorail.com), part number 10162-9. If you decide to go brushless, most brushless motors already have a 1/8″ shaft. I do not want to go brushless. I simply want a bump up in motor performance and want to use steel pinions. Actually, most of these buggies originally utilize mabuchi 380 motors with a 12 tooth pinion gear, however, some buggies out there utilize mabuchi 390 motors with 10 tooth pinion gears which I believe is for more torque when the buggy comes with the larger type tires. I do not believe that 380′s and 390′s are interchangeable, however, I have not verified it. Thank you for watching.