SKU:57213728932
1/2-20 x 1.250 hex black oxide bolts
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USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 14 - Jul 19
Description
1/2-20 x 1.250 hex black oxide boltsMaterial: 8740 Chrome Moly Finish: Black Material 2: Finish 2: Origin: USA
The threads are rolled after heat-treating which gives them about 2000% better fatigue strength than most main bolts that are threaded prior to heat-treating
A “must” for any serious engine builder
5® (AMS5844): While similar to Inconel 718
Nobody likes water leaks
heat-treated in-house to 190
Finish: Natural
NPT -6 thru -20 AN
When assembling a rear end
These premium grade bolt and stud kits are engineered to properly engage the engine block threads and resist loosening
ARP’s Pro Series rocker arm studs are made of premium grade 8740 chrome moly steel and heat-treated to a tensile strength of 190
nominally rated at 180
Special connecting rod washers are available
Quick Dispatch:
Your 1/2-20 x 1.250 hex black oxide bolts orders ship within 1-2 business days.
Delivery Options:
- Standard: 3-7 business days
- Fast: 2-3 business days
- Express: 1-2 business days
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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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