Genuine BMW MINI M8x30 High Tensile 10.9 Hex Bolt with Washer | OEM 31306869931 | Fits F20 F22 F30 F32 F36 F40 X1 F48 X2 F39 MINI F55 F56 F54 F57 F60 | M135i M240i 440i Cooper S

Authentic OE BMW MINI M8 x 30 Grade 10.9 Hex Head Screw with Washer

Need an original equipment fixing that locks down properly and lasts? This factory BMW MINI hex head screw with washer is the correct M8 x 30 grade 10.9 fastener that delivers dependable clamp force, precision fitment and workshop-level reliability. Ideal for service work, restoration, and OE-spec replacements where BMW specifies this size and strength.

We use this part daily in our own builds and customer cars and it has been faultless. Fit is exact, torque holds, and customers consistently praise the quality and consistency of genuine hardware.

Why this OE fastener is the smart choice

• Original equipment specification for peace of mind and perfect alignment
• Grade 10.9 high strength steel for secure clamping under load
• Washer included for correct load spread and seating
• Ideal replacement for tired, corroded or rounded fixings
• Matches dealer standards and maintains factory integrity

Key details

• Type: Hex head screw with washer
• Size: M8 x 30 mm
• Strength: Grade 10.9
• BMW part number: 31306869931 also written as 31 30 6 869 931
• Supplied individually

Vehicle coverage

Used across numerous BMW and MINI platforms where an M8 x 30 grade 10.9 fixing is specified. Highlights include:

• BMW 1 Series: F20, F20 LCI, F21, F21 LCI, F40
• BMW 2 Series: F22, F22 LCI, F23, F23 LCI, F44 Gran Coupé, F45 Active Tourer, F45 LCI, F46 Gran Tourer, F46 LCI, F87 M2, F87 M2 LCI
• BMW 3 Series: F30, F30 LCI, F31, F31 LCI, F34 Gran Turismo, F34 GT LCI
• BMW 4 Series: F32, F32 LCI, F33, F33 LCI, F36 Gran Coupé, F36 Gran Coupé LCI
• BMW X models: X1 F48, X1 F48 LCI, X2 F39
• MINI: F55 5‑door, F56 3‑door including BEV, F54 Clubman and LCI, F57 Cabrio, F60 Countryman

Suits many performance variants and everyday models alike. Always verify the exact location and quantity via your vehicle parts diagram before ordering.

Compatibility check

We can confirm fitment before dispatch. Add your UK registration or the last 7 characters of your VIN at checkout and we will verify compatibility for you.

Fitting and workshop services

Tighten to BMW torque specifications and replace any single-use stretch fasteners where required by BMW. Professional installation available at MJ Modifications in Warwickshire. For a fitting quote, email info@mjmodifications.co.uk.

What you receive

1 x OE BMW MINI M8 x 30 grade 10.9 hex head screw with washer part no. 31306869931

Warranty

Two years manufacturer warranty for UK customers and one year manufacturer warranty for international customers if VIN is provided during checkout on compatible vehicles.

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