Street. Track. Everything between.
07 3276 7829
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Arp

Arp

ARP 1/2-20 x 4.500 12pt black oxide bolts

SKU: ARP726-4500

Bolts and Screws

ARP Chromoly Bolts...

Arp

Arp

ARP 1/2-20 x 4.500 12pt black oxide bolts

SKU: ARP726-4500

Bolts and Screws

ARP Chromoly Bolts...

A$180.85
Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

Added to cart

We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

ARP 1/2-20 x 4.500 12pt black oxide bolts

Product Overview

Now you can use premium quality ARP stainless steel or chrome moly fasteners to install most anything on a car, boat or trailer. The specially alloyed “ARP 300” stainless steel and heat-treated 8740 chrome moly bolts (black oxide finish) 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’s specially polished stainless steel fasteners, and their ability to resist rust. They’re truly maintenance free!

You can get 5-packs (washers included) of any diameter bolt from 1/4˝ to 1/2˝ or M6 to M12 in lengths ranging from 1/2˝ to 6˝, with ARP12-point heads. Matching nuts are also available


Data: v2 - Desc: v4.2 - Upd: 2026-11-07 16:29:09

Data: v4.2 - Upd: 2026-11-07 16:01:27

Features

Images are supplied by the manufacturer and may be generic. While all efforts are made to provide accurate pictures, there may be differences in the actual product, such as colour, quantity, version, or included components. Please carefully review the description and specifications for details on inclusions or any variations. Some items may be sold individually or in sets, and images may occasionally depict additional products or quantities not included in your purchase. For assistance or clarification, please contact customer support.

Specifications

Product Details

Description:Fine Thread 12Point Bolt; 5Pieces
Material:Black Oxide
Part Number:arp726-4500
Size:1/2-20 x 4.5
Wrenching:9/16

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Arp, Arp Fasteners
StreetFX SKU arp726-4500
SFX Item ID 4368924
Accounting SKU arp-726-4500
Manufacturer SKU 726-4500
Manufacturer UPC 672036039752
Alternative References ARP-726-4500

Bolts, 8740 Chromoly, Black Oxide, 12-Point Head, 1/2-20 in. Thread, 4.50 in. Underhead Length, Set of 5

Now you can use premium-quality ARP chromoly bolts to install most anything on a car, boat, or trailer. These specially heat-treated 8740 chromoly fasteners feature a black oxide finish. They're nominally rated at 180,000 psi tensile strength to provide a substantial extra margin of safety over Grade 8 hardware. The bolts are available in a wide range of thread sizes, head styles, and other options.

Product Attributes
BrandARP
Manufacturer's Part Number726-4500
Part TypeBolts and Screws
Product LineARP Chromoly Bolts
UPC672036039752
Fastener TypeBolt
Thread Size1/2 in.-20
Fastener Head StyleFlanged 12-point
Underhead Length (in.)4.500 in.
Fastener Material8740 chromoly
Fastener ColorBlack
Fastener GradeARP 8740 chrome moly
Fastener Tensile Strength (psi)180,000 psi
Wrench Diameter9/16 in.
Washers IncludedYes
QuantitySold as a set of 5.

Compatibility

Loading compatibility information...

Keep shopping

More from Arp