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Mr. Gasket HEADLOCK Locking Header Bolts 2231G Fasteners, Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Ford, Set of 16

SKU: MRG2231G

Header Fasteners

Mr. Gasket HEADLOCK Locking Header Bolts 2231G Fasteners, Bolts, Internal Allen/Hex Head, Stainless Steel, Chevy, Ford, Set of 16

SKU: MRG2231G

Header Fasteners
A$131.12
LOW STOCK! Est Ship 4-7 days. HURRY! LOW STOCK. This item is in limited stock at one of our distribution centres. The ETA is the approximate time required to prepare your order for dispatch.
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Description

Burning your hands on headers or the exhaust manifold when bolting them on just became a thing of the past. Mr. Gasket HEADLOCK locking header bolts simplify header installation with high-strength, 2-in-1 self-locking bolts that eliminate the need for lock washers. Designed for the performance engine builder, these innovative, patent-pending fasteners have 24 equally spaced serrations in the face of the hex head. The bolts grab and lock on to your manifold surface, virtually eliminating the chance that one might back out from vibration or because of the varying expansion rates of different metals. Mr. Gasket HEADLOCK locking header bolts are available for numerous domestic applications, including Chevrolet, Chrysler, Ford, AMC, Oldsmobile, and Pontiac. They're manufactured from stainless steel, designed to withstand tensile strengths of 150,000 pounds per square inch, and come with a bright polished finish.

Part Type

Locking Header Bolt Kit 3/8-16 x 3/4 16pk

Data: v4.2 - Upd: 2026-10-14 09:40:36

Specifications

Product Attributes - Brand
Mr. Gasket
Product Attributes - Manufacturer's Part Number
2231G
Product Attributes - Part Type
Header Fasteners
Product Attributes - Product Line
Mr. Gasket HEADLOCK Locking Header Bolts
Product Attributes - UPC
084041040027
Product Attributes - Fastener Style
Locking bolt
Product Attributes - Thread Size
3/8 in.-16
Product Attributes - Head Style
Internal allen/Hex
Product Attributes - Underhead Length (in.)
0.750 in.
Product Attributes - Underhead Length (mm)
19.00mm
Product Attributes - Fastener Material
Stainless steel
Product Attributes - Fastener Color
Natural
Product Attributes - Quantity
Sold as a set of 16.
Product Attributes - Special Attention
Anti-seize should be used on all stainless steel fasteners.

Reference Information

Brand Name/s Mr. Gasket
StreetFX SKU mrg2231G
SFX Item ID 4982515
Supplier Item Code 4982515
Manufacturer SKU 2231G
Manufacturer UPC N/A

Compatibility

Application Data
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1961
    Ending Year1965
    Engine TypeV8
    Engine Size6.7L/409
    Engine FamilyChevy big block W-engines
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1963
    Ending Year1963
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block W-engines
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1965
    Ending Year1970
    Engine TypeV8
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block Mark IV
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1972
    Engine TypeV8
    Engine Size6.6L/402
    Engine FamilyChevy big block Mark IV
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1974
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
  • UniversalNo
    MakeCHEVROLET
    Beginning Year1970
    Ending Year1989
    Engine TypeV8
    Engine Size7.4L/454
    Engine FamilyChevy big block Mark IV
  • UniversalNo
    MakeFORD
    Beginning Year1963
    Ending Year1963
    Engine TypeV8
    Engine Size6.7L/410
    Engine FamilyFORD MEL SERIES V8 GAS
  • UniversalNo
    MakeFORD
    Beginning Year1963
    Ending Year1968
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyFORD BIG BLOCK FE V8 GAS
  • UniversalNo
    MakeFORD
    Beginning Year1963
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyFORD BIG BLOCK FE V8 GAS
  • UniversalNo
    MakeFORD
    Beginning Year1965
    Ending Year1970
    Engine TypeV8
    Engine Size7.0L/428
    Engine FamilyFORD BIG BLOCK FE V8 GAS
  • UniversalNo
    MakeFORD
    Beginning Year1966
    Ending Year1970
    Engine TypeV8
    Engine Size7.0L/428
    Engine FamilyFORD BIG BLOCK FE V8 GAS
  • UniversalNo
    MakeFORD
    Beginning Year1969
    Ending Year1971
    Engine TypeV8
    Engine Size7.0L/429
    Engine FamilyFord big block 385 Series
  • UniversalNo
    MakeFORD
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Engine Size7.0L/429
    Engine FamilyFord big block 385 Series
  • UniversalNo
    MakeFORD
    Beginning Year1971
    Ending Year1971
    Engine TypeV8
    Engine Size5.8L/351
    Engine FamilyFORD CLEVELAND V8 GAS
  • UniversalNo
    MakeFORD
    Beginning Year1971
    Ending Year1972
    Engine TypeV8
    Engine Size5.8L/351
    Engine FamilyFORD CLEVELAND V8 GAS
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1961
    Ending Year1965
    Engine TypeV8
    Engine Size6.7L/409
    Engine FamilyChevy big block W-engines
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1961
    Ending Year1965
    Engine TypeV8
    Engine Size6.7L/409
    Engine FamilyChevy big block W-engines
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1963
    Ending Year1963
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block W-engines
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1963
    Ending Year1963
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block W-engines
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1965
    Ending Year1969
    Engine TypeV8
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1965
    Ending Year1969
    Engine TypeV8
    Engine Size6.5L/396
    Engine FamilyChevy big block Mark IV
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block Mark IV
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1966
    Ending Year1969
    Engine TypeV8
    Engine Size7.0L/427
    Engine FamilyChevy big block Mark IV
  • MakeCHEVROLET
    ModelBEL AIR
    SubmodelBASE
    Beginning Year1970
    Ending Year1971
    Engine TypeV8
    Engine Size6.6L/400
    Engine FamilyChevy small block Gen I

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