Home / Shop / Edelbrock Header Bolt Kits 8543 Fasteners, Kits, Flanged, M8 x 1.25 Thread Size, Steel, Black Oxide, 0.984 in. Underhead Length, Set of 12

Edelbrock Header Bolt Kits 8543 Fasteners, Kits, Flanged, M8 x 1.25 Thread Size, Steel, Black Oxide, 0.984 in. Underhead Length, Set of 12

SKU: EDE8543

Header Fasteners

Edelbrock

Edelbrock Header Bolt Kits 8543 Fasteners, Kits, Flanged, M8 x 1.25 Thread Size, Steel, Black Oxide, 0.984 in. Underhead Length, Set of 12

SKU: EDE8543

Header Fasteners

Available from MFR. This item is available from the manufacturer's distribution centre. The dispatch timeframe shown is an estimate based on historical order processing and release times for this part. This item is not held in our own warehouse, and actual dispatch timing may vary depending on manufacturer workload and logistics at the time of ordering.

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Description

Edelbrock Exhaust Header Bolt Kit #8543 contains a set of 12 high-quality black oxide steel flanged bolts for universal applications that require a M8-1.25 thread pitch and 25mm length. These header bolts feature a combination hex-Allen head that allows you to use a 10mm combination wrench. The flange design helps to distribute pressure and eliminates the need for separate washers. The black oxide finish provides a nice aesthetic look with mild resistance to corrosion in dry environments.

Part Type

Exhaust Header Bolt

Data: v4.2 - Upd: 2026-10-14 10:58:15

Features

Black oxide finish offers resistance to corrosion in dry environments
Flanged bolt design distributes pressure and eliminates the need for a washer
Grade 5-bolt
Hex-Allen head design
Universal header bolt set of twelve

Specifications

Product Attributes - Brand: Edelbrock
Product Attributes - Manufacturer's Part Number: 8543
Product Attributes - Part Type: Header Fasteners
Product Attributes - Product Line: Edelbrock Header Bolt Kits
Product Attributes - UPC: 085347085439
Product Attributes - Fastener Style: Bolt
Product Attributes - Thread Size: M8 x 1.25
Product Attributes - Head Style: Internal allen/Hex
Product Attributes - Underhead Length (in.): 0.984 in.
Product Attributes - Underhead Length (mm): 25.00mm
Product Attributes - Fastener Material: Steel
Product Attributes - Fastener Color: Black
Product Attributes - Wrench Diameter: 10mm
Product Attributes - Quantity: Sold as a set of 12.
Product Attributes - Notes: Bolts are flanged.
Product Attributes - Special Attention: Bolts can be used with an Allen socket or a 10mm wrench.

Reference Information

Brand Name/s	Edelbrock
StreetFX SKU	ede8543
SFX Item ID	4810029
Supplier Item Code	4810029
Manufacturer SKU	8543
Manufacturer UPC	85347085439
Alternative References	EDB8543, EDL-8543