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- USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18
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Description
ARP Chromemoly Bolts 5/16 in.-18 RH Thread, 3.000 in # 641-3000ARP Chromemoly Bolts 5 16 in. 18 RH Thread, 3. 000 in # 641 3000 Bolts, 12 Point Head, Custom 450, Black Oxide, 5 16 in. 18 RH Thread, 3. 000 in. UHL, Set of 5 hread Size 5 16 18 in. Underhead Length (in) 3. 000 in. Fastener Head Style 12 point Fastener Material Chromemoly Fastener Finish Black oxide Fastener Yield Strength (psi) 170,000 psi Wrench Diameter 3 8 in. Washers Included Yes Quantity Sold as a set of 5. Now you can use premium quality ARP
ARP Chromemoly Bolts 5/16 in.-18 RH Thread, 3.000 in # 641-3000Bolts, 12-Point Head, Custom 450, Black Oxide, 5/16 in.-18 RH Thread, 3.000 in. UHL, Set of 5
hread Size
5/16-18 in.
Underhead Length (in)
3.000 in.
Fastener Head Style
12-point
Fastener Material
Chromemoly
Fastener Finish
Black oxide
Fastener Yield Strength (psi)
170,000 psi
Wrench Diameter
3/8 in.
Washers Included
Yes
Quantity
Sold as a set of 5.
Now you can use premium-quality ARP chromemoly fasteners to install most anything on a car, boat, or trailer. These specially heat-treated 8740 chromemoly bolts feature a black oxide finish. They are nominally rated at 180,000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware. What's more, you can't beat the gorgeous looks of ARP fasteners and their ability to resist rust. They're truly maintenance-free!
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.2 ★★★★★
Based on 1387 reviews
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Product Reviews
★★★★★ 5
Fantastic Product
I bought these hangers to mount my speakers. They are heavy duty, has a curl at the end to keep the speakers from falling off, and I was able to mount them and have clearance underneath. Awesome!!
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Reviewed in the United States on November 7, 2024
★★★★★ 4
Does it's purpose with style
We used these in our pantry and dining room for shelves and they turned out well. The only reason they are hard to install is because of the design (which is very nice) so it is worth it. It just takes time when you you are hanging the shelves, to do it correctly. While they can hold a lot, we realized that a bunch of cans or jars cannot go on these shelves. Luckily we had another option for heavy items (Example: We had about 40ish pounds of cans/jars on a 1x12 board that is 33 inches long with 2 of these brackets...and it was too much). If you do not need to hold a lot of weight, these shelves are a for sure, for the price and quality. If you NEED they for something heavy, then you probably will have to go with something more practical from a hardware store. We LOVE them for our pantry!
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Reviewed in the United States on March 28, 2020
★★★★★ 5
Worked as intended
Hubby used these to mount a shelf above a long span of windows. They worked great and allowed a clean visual appearance.
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Reviewed in the United States on December 7, 2025
★★★★★ 5
Nice brackets
These are nice sturdy brackets for butcher block shelf however they do bend a bit. We installed in a corner so was able to pin to side wall no problems on big shelf. The smaller shelf about 18” moves a bit up and down when loading. Now very little and no worries about it but not rock solid
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Reviewed in the United States on January 20, 2024
★★★★★ 5
Easiest shelf brackets ever!
Live these! They were great look good and we’re easy to install
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Reviewed in the United States on December 12, 2025