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Mr. Gasket Header Bolts 978G Fasteners, Bolts, Allen Head, Black Oxide, Steel, 8mm x 1.25 Thread, 25mm Length, Set of 16

SKU: MRG978G

Header Fasteners

Mr. Gasket Header Bolts 978G Fasteners, Bolts, Allen Head, Black Oxide, Steel, 8mm x 1.25 Thread, 25mm Length, Set of 16

SKU: MRG978G

Header Fasteners
A$99.99
IN STOCK! Est Ship 3-7 Days days. In stock at 2 locations (7 available)

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Description

Header Bolt - 8 mm x 1.25 Thread - 25 mm Long - Hex Head - Steel - Black Oxide - GM LS-Series / Ford Modular / Mopar Gen III Hemi - Set of 16


Data: v2 - Desc: v4.2 - Upd: 2026-11-08 06:10:31

Data: v4.2 - Upd: 2026-11-08 16:48:57

Features

Note for Australian and European Markets

Unless otherwise stated, this product may be engineered for use in Left-Hand Drive vehicles. Steering components, pedals, shifters, linkages, wing mirrors, instrument clusters, panhard rods/traction bars, drag links, brake boosters, brake or clutch lines, accelerator cables, heater cores, some master cylinders and adjacent parts can vary between LHD and RHD configurations. In some models compenents such as windscreen wiper arms, motors and linkages could differ in their size and orientation. Items such as floor mats & dash mats may have differences in their structure around the front row (or padding in different locations). In many cases items are identical depending on the design of the vehicle and part, but may have differing mounts, lengths or bolt patterns. Carefully review the product images and details to ensure suitability for your vehicle, or contact StreetFX support if you are unsure. Returns are not accepted for special order products.

(keyword: header)

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

Reference Information

Reference Data (Provide these details to our support team)
Brand Name/s Mr. Gasket
StreetFX SKU mrg978G
SFX Item ID 4982072
Accounting SKU mrg-978G
Manufacturer SKU 978G
Manufacturer UPC 084041109786
Alternative References 978G, MRG-978G

Header Fasteners, Bolts, Allen Head, Black Oxide, Steel, 8mm x 1.25 Thread, 25mm Length, Set of 16

Installing headers can sometimes be a real pain, due to the tight spaces and the location and shape of the tubes. Mr. Gasket can help make installation a little easier and also help prevent annoying exhaust leaks from under-tightened header bolts. They have both the socket-head and hex-head styles of header bolts available. Hex types are heat-treated Grade 5 steel and have smaller-than-standard heads to ease access in tight spaces. Socket-head bolts are made from stronger Grade 8 steel for added ruggedness and they're great for those really difficult-to-reach spots. Both styles have a protective black oxide finish.

Product Attributes
BrandMr. Gasket
Manufacturer's Part Number978G
Part TypeHeader Fasteners
Product LineMr. Gasket Header Bolts
UPC084041109786
Fastener StyleBolt
Thread SizeM8 x 1.25
Head StyleInternal allen
Underhead Length (in.)0.984 in.
Underhead Length (mm)25.00mm
Fastener MaterialSteel
Fastener ColorBlack
Wrench Diameter6mm
Fastener Tensile Strength (psi)170,000 psi
QuantitySold as a set of 16.

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