


Shoulder Screw 5/16"-18 x 3/8" x 2-1/2" - Stainless Steel 18-8
Marsoni
M251S
Get it in 3 business days with 1 day shipping.
Friday, May 29
Shoulder Screw 5/16"-18 x 3/8" x 2-1/2" - Stainless Steel 18-8Product Details : Shoulder Screw 5 16" 18 x 3 8" x 2 1 2" Stainless Steel 18 8 Product Type: Shoulder Screw Shoulder Diameter: 3 8" Thread Size: 5 16" 18 Bolt Diameter Size: 5 16" Thread Count (Pitch TPI): 18 Shoulder Length: 2 1 2" Thread Length: 1 2" Thread Type: Coarse Imperial Head Type: Hexagon Socket Head Diameter: 9 16" Head Height: 1 4" Drive Size: 3 16" Material(s): Stainless Steel 18 8 Tensile Strength: 70,000 psi Thread Direction: Right
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Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
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4.3 ★★★★★
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Product Reviews
★★★★★ 5
A must for tire repair
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
Beats using a drill bit, this really is a must for tire plug, patch repair
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 2, 2026
★★★★★ 5
These tire repair reamers work great for plug/other type repairs
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These tire repair reamers work great for plug/other type repairs. Gone are the days of manually fighting a hand reamer through rough rubber. This is an efficient, neat and clean way to prepare a tire for the repair. Will purchase again as needed.
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Reviewed in the United States on November 27, 2025
★★★★★ 4
Got what I paid for.
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
I dropped my drill with the bit installed. It broke quite easily. It was a relatively inexpensive so I can't complain. A higher quality harder metal would have earned 5 stars.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 17, 2025
★★★★★ 5
Great product
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These bits are great. We use them every day e when patching or plugging tires. Having multiple sizes helps us match the bit to the patch we use.
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Reviewed in the United States on April 17, 2026
★★★★★ 5
Easy on the hands
Size: 3 mm 4.5 mm 6 mm Tire, Number of Items: 3
These make it much easier to ream tires that have been punctured. It takes the stress off of your hands, forearms and elbows especially when you’re plugging higher ply tires.
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Reviewed in the United States on November 14, 2025