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Bolt sizes
#1
Hi all

Can anyone give me the bolt sizes used and the list of all bolts used on Mini
Or where can i look for this info?
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#2
Here you go,

MINI BOLTS
Timing Cover
5 x Bolts Cap Head 5/16"UNF (3/4" Long)
6 x Bolts Cap Head 1/4"UNF (7/16" Long)
5 x Washers 5/16"PLN (5/8" OD)
5 x Washers 5/16"SPR (1/2" OD)
6 x Washers 1/4"PLN (9/16" OD)
6 x Washers 1/4"SPR (7/16" OD)
1 x Nut 5/16"UNF (1/2" Head)
1 x Nut 1/4"UNF (7/16" Head)

Coolant Circuit
2 x Bolts Heater Tap 1/4" UNF (7/16" Head, 1/2" Long)
2 x Washers Heater Tap 1/4" SPR (3/8" OD)
2 x Bolts Radiator Top 1/4" UNF (7/16" Head, 1 1/2" Long)
2 x Washers Radiator Top 1/4"PLN (9/16" OD)
2 x Bolts (Water Pump) 5/16"UNF (1/2" Head, 2" Long)
2 x Bolts (Water Pump) 5/16"UNF (1/2" Head, 1" Long)
4 x Washers (Water Pump) 5/16"PLN (5/8" OD)
4 x Washers (Water Pump) 5/16"SPR (1/2" OD)

Thermostat (Short)
3 x Bolts 5/16 UNC (1/2" Head, 1 1/2" Long)
3 x Washers 5/16" SPR (1/2" OD)

Engine Electrical
2 x Bolts (Alt' top) 5/16"UNF (1/2" Head, 2" Long)
1 x Bolt (Alt' Bottom) M8x20
1 x Nut (Alt' Bottom) mate NyLoc
4 x Washers (Alternator) 5/16"PLN (5/8" OD)
4 x Washers (Alternator) 5/16"SPR (1/2" OD)
2 x Nuts (Alternator) 5/16"UNF (1/2" Head)
2 x Bolts Starter Motor 3/8"UNC (9/16" Head, 1 1/4" Long)
2 x Washers Starter motor 3/8"SPR (5/16" OD)
1 x Bolt (A+ Distributor) 5/16" UNF (1/2" Head, 3/4" Long)

Clutch Slave (Non verto)
2 x Bolts (Cyl Mount) 3/8"UNC (9/16" Head, 1" Long)
2 x Washers (Cyl Mount) 3/8"SPR (5/8" OD)
1 x Bolt (Arm Stop) 1/4"UNF (7/16" Head, 1" Long)
1 x Lock Nut (Arm Stop) 1/4"UNF (7/16" Head)

Clutch Cover
8 x Bolts 5/16"UNC (1/2" Head, 1" Long)
8 x Washers 5/16"SPR (1/2" OD)
8 x Washers 5/16"PLN (5/8" OD)

Tappet Chest
2 x Bolts 5/16" UNF (1/2" Head, 1 1/4" long)
2 x Washers 5/16 PLN (5/8" OD)

Pre A+ Distributor Drive
1x Bolt 1/4"UNF (7/16" Head, 3/4" long)
1x Washer 1/4"SPR (3/8" OD)

Fuel Pump
2 x Bolt 5/16" UNC (1/2 Head , 1 1/2"long)
2 x Washers 5/16" SPR (1/2" OD)
2 x Washers 5/16" PLN (5/8" OD)

Oil Filter Housing
2 x Bolt 3/8" UNC (9/16" Head, 1" Long)
2 x Washers 3/8" SPR
2 x Washers 3/8"PLN (15/16" OD)

Manifold Bolts
6 x Bolt 5/16 UNF (1" Long)
6 x Washers 5/16" SPR (1/2" OD)
6 x Washers 5/16" PLN (5/8" OD)

Can the admin's please move this up to the Important section. Sure others would like to use this for reference as well.
[-] The following 6 users Like minitim's post:
  • admin, Boyscout, Cooper1275, Jared Mk3, moemini, u09521
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#3
Nice one Minitim!

the closest I could get was this http://www.ukclassicparts.com/mini-spare...s-fixings/
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#4
Thanks indeed!

Any sizes on what the Subframes use?
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#5
Subframe uses 10 bolts to mount to the body.

4 long ones in engine bay


4 short ones from inside the car
5/16 UNF X 3/4
Front subframe rear mounting

2 short ones through the front valence

Will see if I can track down the sizes
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#6
The 4 tower bolts have part number 21A90 and are 3/8 UNF x 4 3/8 long for dry suspension cars.

The two front mountings are 5/16 UNF x 1 part number SH605081
Own some minis, break them, fix them, improve them, test them to the limit....
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#7
(04-06-2016, 05:57 PM)GTSPhil Wrote: The 4 tower bolts have part number 21A90 and are 3/8 UNF x 4 3/8 long for dry suspension cars.

The two front mountings are 5/16 UNF x 1 part number SH605081


This is waht I could gather for the Front Subframe

2 of
M8 x 30 bolt
M8 Spring washer
M8 Nut

4 of
M8 x 20 bolt
M8 Spring washer
M8 Nut

4 of
M8 x 110 Bolt
M8 Spring washer
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#8
The important ones are the tower bolts that are UNF, as these fasten to the subframe captive plates.

The rest can be metric if you prefer.
[-] The following 1 user Likes minitim's post:
  • _freak_
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#9
Guys

Please do me a favour, for the same effort and will etc to go and buy metric bolts and fit them, please just fit the correct imperial bolt and or nut and keep the car as far possible correct.

Now the new owner will have a hard time figuring out what bolts and nuts was used if you mix and match.
Do not get me wrong as I do understand that like the front mounting bolts and the bolts through the floor will not matter if metric, but do not go and force metric bolts into the tower mounting plates. I have had to fix too many threads that have been fu++ed up due to incorrect bolts and nuts being fitted. Having recently gone through the same exercise of fitting helicoils due to metric bolts being forced to into the hubs,where the calipers mount.
Own some minis, break them, fix them, improve them, test them to the limit....
[-] The following 4 users Like GTSPhil's post:
  • Colin, Jared Mk3, u09521, _freak_
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#10
Hi
Could anyone source a complete bolt and nut list yet?
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