Grenadier Screw/Bolt head types & sizes

[TheDocAUS]

BACKGROUND
@DaBull and I have been having a discussion of Screw/bolt heads over in the Torque setting thread here. I started a new thread to focus on the various size and types of common screws/bolts used on the Grenadier. The Table will be updated over time.

There will be some variation between cars. I know earlier model Grenadiers had torx bolts along the door sill, my car has hex bolts.#

COMMON HEAD TYPES
A diagram of common heads (it shows no Torx Plus head).

Source

THE DIFFERENCE BETWEEN TORX AND TORX PLUS
The @DaBull supplied video link of the difference between a Torx head and Torx Plus (Torx+) head.

View: https://youtu.be/U27j1ZvaWeU

THE TABLE​

Location	Head Type	Torque Setting	Comment
Door hinge bolt (exterior)	Torx T50
Utility Belt bolts	Torx T30		But it seems a T27 may work in an emergency.
Bracket bolt on grab handle	Torx Plus T25P
Lower door sill bolts	Torx ?? or Male Hex M10#
Roof Rack/Bars	Mostly female hex*	Various	The INEOS Fitting Guides for Accessories often have the various bolt types and torque settings. The head type is commonly a female hex,* on a M6 or M8 bolt.
CTECK 120S & 250SE – terminal screws	Female hex, use 5mm Allen Key	8 Nm/71	More information in this thread.
CTECK 120S & 250SE, base mounting bolts	M4 or ST4.2 screws/bolts	2 Nm/18 lb	More information in this thread.
Oil filter cap	32mm male hex#	25Nm	More information in this thread.
Oil sump plug	M12 Hex	25Nm	More information in this thread.
Busbar studs	Various	Various	Look here.
Headlight surround	Torx T27	??
Plastic trim bolts on both rear doors	Torx T27	??	All my bolts needed some tightening, but I did not overtighten them. However, on the INEOS Picnic Table they used Torx T25 bolt heads, not T27 – go figure!
INEOS Picnic Table bolts	Torx T25	??	Torx T27 are used on the plastic trim behind the picnic table.
Bolts used on the front raised tie down points near the cargo barrier	Torx T40	??	2-seater model only. The tie down points on top of the battery box close to the cargo barrier. All 4 of my bolts needed to be tightened (2 each side).
Bolts attaching the cargo barrier to the battery box	Torx T50	??	2-seater model only. The bolts that attach the 2-seater cargo barrier to the battery box.
Bolts used to secure L track in cargo area	Torx T50	??	Six bolts are used to secure L Track rails on the cargo area floor.
Anchor points in cargo area	Torx T45	??	Not sure where these came from as they were part of the drawer install.
Larger anchor bolts used in rear roof No 1	Torx T40	??	Bolts removed as part of the rear roof shelf install. Look here.
Smaller anchor bolts used in rear roof No 2	Torx T25	??	Bolts removed as part of the rear roof shelf install. Look here.
License plate light shroud screws	Torx 20	??	These lights illuminate the rear number plate. Thanks @parb
Bolts used in forward roof mounts, under the shrouds	Female hex, use 4mm Allen Key*	??	Look here.
Bolts along each side of the bonnet/hood adjacent to seals	Torx T30	??
Bolts on the bonnet/hood U bolts	Torx T30	??
Airbox screws	PZ3 (Pozidriv 3)	??	Thanks to @Tinki and @Michael H
Battery compartment (5 seater)	Torx T50	??	Thanks to @bakepl
Under door trim	Torx T30 and M10 hex socket	??

*Commonly loosen/tighten with an Allen key or hex bit. #Commonly loosen/tighten with a socket, spanner or wrench.

Methodology: I take a selection of Torx and Torx Plus bits and work out which fits the best. When there is uncertainty, I look closely at the shape of the screw/bolt head.

​

 

[TheDocAUS]

Reserved for Part 2

 

[TheDocAUS]

Reserved for Part 3

 

[TheDocAUS]

Table updated, several more bolt heads added. Only one Torx Plus bolt head has been found so far, on the grab handle bracket. There has been a few screw.bolts I had to tighten. These are noted in the Table.

Methodology: I take a selection of Torx and Torx Plus bits and work out which fits the best. When there is uncertainty I look very closely at the shape of the screw/bolt head.

 

[parb]

Nice work. Surprising that they use this many different types of tools in manufacturing. It's inefficient.

 

[TheDocAUS]

Table updated again, even more variety.

Tomorrow I will torque all the bolts attached to the battery box (2 seater model). I did not do the battery box hinges today, just the front tie down rings. The hinge screw/bolts look T50 or maybe even bigger.

So far Torx T25, T27, T40, T45, T50 and a Torx Plus TP25. Pretty I used the Torx T30 in the past.

I can see other Torx sizes are used, but I need to work through other parts of the car.

Tip: if you think it is a T27 head, always try the T30 as well. The T27 feels loose in a T30 head, but it will work - poorly.

 

[DENOGG-Fieldmaster]

I tried to install my cargo net in the forward position and can now report that the screw that holds the plastic shrouds for the upper net mounts has a 4mm Hex head. Wedged in good and had to take that shroud out.

 

[TheDocAUS]

I tried to install my cargo net in the forward position and can now report that the screw that holds the plastic shrouds for the upper net mounts has a 4mm Hex head. Wedged in good and had to take that shroud out.

Are they the from roof mounts? Can you post a picture as I will add this to the Table - with a link to your photo.

Just FYI, the small bolts from the rear roof mount in the back of my car were Torx T25 heads. You need to remove the shrouds for then also.

 

[TheDocAUS]

Table updated with some more screw/bolts.

 

[DENOGG-Fieldmaster]

Are they the from roof mounts? Can you post a picture as I will add this to the Table - with a link to your photo.

Just FYI, the small bolts from the rear roof mount in the back of my car were Torx T25 heads. You need to remove the shrouds for then also.

Will do tomorrow. It’s the interior net mount.

 

[DENOGG-Fieldmaster]

Are they the from roof mounts? Can you post a picture as I will add this to the Table - with a link to your photo.

Just FYI, the small bolts from the rear roof mount in the back of my car were Torx T25 heads. You need to remove the shrouds for then also.

This is the 4mm Allen/Hex screw I was talking about.

 

[WhiteBear]

What size Torx is this screw at the cover of the battery compartment?
T40 or T45?
(Picture taken from a forum member found elsewhere, not mine)

Edit: Found it, seems to be T45.

 

[TheDocAUS]

What size Torx is this screw at the cover of the battery compartment?
T40 or T45?
(Picture taken from a forum member found elsewhere, not mine)

Do you know if that is from a 5 seater model. I have a 2 seater and it does not look familiar to me.

I will look tomorrow.

 

[WhiteBear]

I think it was a 5 seater, as far as I remember. Thank you.

 

[TheDocAUS]

What size Torx is this screw at the cover of the battery compartment?
T40 or T45?
(Picture taken from a forum member found elsewhere, not mine)

Sorry I cannot help, this bracket does not seem to be on a 2 seater model. Ask @DaBull, he may be able to help.

 

[TheDocAUS]

Table updated in the first post.

 

[TheDocAUS]

AIRBOX SCREWS
Screw heads used on the air filter box are PZ3, or Pozidriv 3.

Thanks to @Michael H here.

 

[Michael H.]

AIRBOX SCREWS
Screw heads used on the air filter box are PZ3, or Pozidriv 3.

Thanks to @Michael H here.

I think I learnt about PZ3 screw heads from an earlier post on this forum by @Tinki.

 

[bakepl]

What size Torx is this screw at the cover of the battery compartment?
T40 or T45?
(Picture taken from a forum member found elsewhere, not mine)

Edit: Found it, seems to be T45.

T50 - and the ratchet spanner is 10mm shorty.

 

[TheDocAUS]

Table updated.