Hex Head Bolt 1/2"-13 x 1" Full thread - Plain Steel Grade 8

Marsoni

M251S

$30.45

Get it in 3 business days with 1 day shipping. Friday, May 29

Hex Head Bolt 1/2"-13 x 1" Full thread - Plain Steel Grade 8Hex Head Bolt PDF Product Details : Hex Head Bolt 1 2" 13 x 1" Full thread Plain Steel Grade 8 Product Type: Hex Head Bolt Thread Size: 1 2" 13 Bolt Diameter: 1 2" Thread Count (Pitch): 13 Length: 1" Thread: Full thread Thread Type: Coarse Imperial Thread Direction: Right Hand Thread Material(s): Alloy Steel Finish: Plain Steel Grade Class: Grade 8 Standards and Certifications: ASME B18. 2. 1 For any information about products, please contact us.

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I was needing a filter wrench for my 2001 Volvo V70XC and couldn't find anything that fit from the local auto parts stores. Not knowing what to expect, I took a chance on this one since most of the reviews were 5 star and the price was exceptional. When I received it, I was quite pleased with the construction and finish. I have a brand new oil filter housing for my Volvo (since the one currently on my car is chewed up from the former owner using slip-jaw pliers or something on it) and the fit is perfect! I have worked as a mechanic my whole life (aircraft & automotive), and spent a couple of years as a technician at an automotive dealership and I can say that the tool looks like it is designed for heavy-duty use. The stamped steel housing is thicker than those found in local auto parts stores and the drive adapter has a thick arc welded bead along the inside of the tool. So, it appears to be made to hold up to some fairly heavy torque. Although the product description states that it is 1/2", the drive adapter is actually made for direct attachment to a 3/8" drive. Perhaps this error stems from the fact that they offer a much larger wrench (118-131mm) and this is a more accurate description of their other offerings. The 3/8" drive adapter works perfectly and a 21mm socket fits nicely on the external hex. Fits with SAE sizes are a mixed bag, though. I was able to attach a 13/16" 12-pt. box-end wrench, but not the opposing open-end. A similarly sized 13/16" 6-pt. socket was extremely tight, so I wouldn't recommend this size and would just go with the 21mm if you had to use the external hex. Otherwise, just use the 3/8" drive adapter for easiest use of this tool. The adapter also incorporates ball detents on all four sides of the internal 3/8" drive, so your ratchet or extension won't easily fall off while in use. Since this tool is made for oil filter removal & installation, I'm sure that it will deliver as promised. I'll post an update after my next oil change and I get a chance to use it and install the new filter housing I have.

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Reviewed in the United States on January 25, 2014

Verified Purchase

Charles Szatkowski

Houston, US

★★★★★ 5

Makes the job easy

Size: 88.5mm x 16

Worked well for removing and installing the oil filter housing.

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Reviewed in the United States on April 17, 2026

Verified Purchase