Lambretta nut & bolt sizes, plus stainless info

[Piatti]

Hi, I found this list of Lambretta nut & bolt sizes, It may be of help to somebody.

I have heard its far cheaper to buy yourself than to invest in various nut & bolt kits which can be found on sale, i.e ebay

Apparently in certain countries the use of stainless nuts & bolts to major fixing points such as forks and wheels has been outlawed.....

Stainless steel fasteners ie bolts, screws and nuts, can 'fire up' with one another. Lubricating them before assembly, i.e smear the threads with copper grease or Waxoyl before assembly will help prevent against this problem.

http://www.stagonset.co.uk/ sells stainless in the uk, and has No minimum order.
I was going to send the list off to them and see how much, inc postage it would total.

Please feel free to amend or add to the list below as it is something I found on the internet and saved for future reference for when I am at that stage of my rebuild.

Upon replies here, I may opt for Zinc plated fork and wheel fixings as opposed to stainless

1.Horn Casting

M5 x 10mm Pan Head Slotted Screw (2 Required)
M6 x 18mm Allen Head Screw + 2x6mm Conical Washers (2 Sets Required)
M5 x 20mm Countersunk Oval Slotted Screw + Finishing Washer (2 Sets Required)
M5 x 16mm Hex Head Bolt + 5mm Large Diameter Conical Washer (2 Sets Required)
M4 x 10mm Countersunk Oval Head Slotted Screw (Oval is optional, just looks better) (2 Required)


2.Front Mudguard

M5 x 25mm Countersunk Flat Top Slotted Screw + 5mm Nut, 5mm Conical Washer (2 Sets Required)
M5 x 20mm Countersunk Oval Slotted Screw + Finishing Washer, 5mm Nut, 5mm Conical Washer (2 Sets Required)


3.Floor Set inc. Bridge Plate

M4 x 10mm Pan Head Screw + 4mm Speed Nut, and
M4 x 20mm Pan Head Screw + 4mm Nut, 4mm Large Diameter Washer
M4 x 10mm Pan Head Screw + 4mm Speed Nut (2 Sets required)
(In lieu of speed nuts, you can use plain nuts and washers)
M4 x 20mm Countersunk Oval Slotted Screw + 4mm Nuts, 4mm Washers (4 Sets Required)
M4 x 25mm Countersunk Oval Slotted Screw + 4 mm Nuts, 4mm Large Diameter Washers (2 Sets Required)
M4 x 10 Countersunk Oval Slotted Screw = Finishing Nut (2 Sets Required)
14 x 5mm Nuts
14 x 5mm Conical Washers
10 x 5mm Speed Nuts
M5 x 25 Countersunk Oval Slotted Screw + 5mm Nut, 5mm Conical Washer


4.Dual Seat

M8 x 25mm Hex Head Bolt + 8mm Nut, 8mm Washer (8 Sets Required)
4 x 8mm Flat Metal Washer
Large Diameter 8mm Plastic Washer. (4 Required)


5.Frame ‘L’ Bracket

M7 x 20mm Hex Head Bolt + 7mm Nut, 7mm Conical Washer (2 Sets Required)


6.Engine Cowlings

M5 x 10mm Slotted Hex Head Bolt + 5mm Lock Washer (7 Required)
M8 x 14mm Hex Head Bolt + 8mm Conical Washer (1 Required)


7.Headset

M5 x 40mm Countersunk Oval Slotted Screw + 5mm Countersunk Internal Lock Washer (2 Sets Required)
M6 x 10mm Countersunk Oval Slotted Screw (2 Required)
M3 x 20mm Countersunk Oval Machine Screw (Philips Head) (4 Required)
M3 x 22mm Countersunk Flat Slotted Screw (2 Required)

Regards

Piatti

[oldbiker]

The two most common grades of stainless steel used for nuts bolts etc. A2 stainless and A4 stainless.

The real differences are A2 can be cut fairly easily with a hacksaw etc. but it will readily become very hard if it is overheated for examply if you try to drill it at a high speed or if you try to use a blunt drill to make a hole in it.

A4 is a slightly different alloy it is very strong and does not stretch, it is also very hard (it is used for stainless masonary nails as well as nuts and bolts) you will have great difficulty cutting an over sized bolt down to a shorter length, but a nut is unlikely to be damaged or rounded off

[Train Driver]

I found this a while ago, before that i thought stainless steel was one product.

http://www.aalco.co.uk/technical/stainless.html