1.k Norton Engine Bolts, Screws, Nuts, Special Washers - SOHC (and Other Single Cylinder Models)

1.k Norton Engine Bolts, Screws, Nuts, Special Washers - SOHC (and Other Single Cylinder Models)

A selection of Engine bolts, screws, nuts, cheesehead sets, washers etc to fit Norton single cylinder models - many of them CNC machined in stainless steel.  SOHC Engine bolts with correct Norton threads/profiles.  See also 'Norton Fasteners' section, for many other bolts, nuts, screws, washers etc specific to Norton single cylinder models.

Update Dec 2020:  We are expecting to manufacture a new batch of those bolts out of stock shortly, and add some OHV/SV engine bolts to this range as well.


Display per page
Sort by

13289 - SOHC M30/M40 (Wasted Head) Front Frame Engine Bolt Set (1/2"x20 tpi) - Stainless Steel

Product no.: 0727 13289

This is the 13289(Norton part number) 1/2" x 20 Engine Bolt set - M30/M40 (SOHC Manx Model) Norton front frame bolt, with the racing style 'Wasted Head' profile as would be expected on competition Manx models of the 1930's - 1950's magnesium engined models. 

As well as saving a small amount of weight over the 'rounded head' type, they also look very pretty. The set is CNC machined from stainless steel with the correct 'reduced Hex' head and profile, 2 stainless washers and reduced Hex wider nut

 

£21.00 *
Not in stock

SOHC 13294 M30/M40 3/8" Engine Plate Top Bolt/Nut Set - Stainless Steel

Product no.: 0668 13294

This is the special 13294 front engine plate top bolt that is fitted to M30/M40 (pre-Featherbed Manx) magnesium engines.  It has the correct 'reduced' head 0.600" AF hex head, with distinctive Norton curved head finish.  This set comes complete with correct matching E3224 nut and two washers, all in stainless steel. It is 3/8" shaft diameter  

£18.00 *
Not in stock

SOHC 10410 M30/M40 7/16" Engine Plate Lower Bolt/Nut Set - Stainless Steel

Product no.: 0670 10410

This is the special 10410 front engine plate lower bolt that is fitted to M30/M40 (pre-Featherbed Manx) magnesium engines.  It has the correct 'reduced' head 0.600" AF hex head, with distinctive Norton curved head finish.  This set comes complete with correct matching E3238 nut and two washers, all in stainless steel.  It is 7/16" diameter shaft 

£19.00 *
Not in stock

SOHC 13293 (Wasted Head) M30/M40 7/16" Engine Middle Front Bolt/Nut Set - Stainless Steel

Product no.: 0692 13293

This is the special SOHC 13293 M30/M40 7/16" front/middle engine bolt - machined with the correct racing Norton type 'wasted' head, as fitted to M30/Manx Nortons.  It has the correct 'reduced' head 0.600" AF hex head, and the set comes complete with correct matching E3238 nut and two washers, all in stainless steel.  It is 7/16" diameter shaft 

£16.00 *
Not in stock

10432(S) - SOHC M30/M40 (Wasted Head) Rear/Short Engine Bolt Set (7/16"x20 tpi) - Stainless Steel

Product no.: 0724 10432(2)

This is the 10432 (Norton part number) 7/16" x 20 above magneto/rear engine bolt set as fitted to some competition Norton Model 30M (500cc) models - i.e. to fit the SOHC Manx 500cc crankcase.  It has a 'wasted head', meaning it is fractionally lighter as well as looking very pretty.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on many competition engines from 1930's/50's

 

£19.00 *
Not in stock

10432(L) - SOHC M30/M40 (Wasted Head) Rear/Long Engine Bolt Set (7/16"x20 tpi) - Stainless Steel

Product no.: 0725 10432

This is the 10432 (Norton part number) 7/16" x 20 below magneto/rear engine bolt set as fitted to some competition Norton Model 30M (500cc) models - i.e. to fit the SOHC Manx 500cc crankcase.  It has a 'wasted head', meaning it is fractionally lighter as well as looking very pretty.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on many competition engines from 1930's/50's

 

£19.00 *
Not in stock

E4251 - SOHC Mod 40M(350) Wasted Head Rear/Long Engine Bolt Set (3/8"x26 tpi) - Stainless Steel

Product no.: 0722 E4251L

This is the E4251 3/8" x 26tpi below magneto/rear engine bolt set as fitted to early Norton Model 40M/Pre 48 Manx Model 40M competition models - as fitted below the magneto, with the competition type distinctive Norton type 'Wasted Head'/reduced hex curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel 

  

£18.00 *
In stock

E4251 - SOHC Mod 40M (350) Wasted Head Rear/Short Engine Bolt Set (3/8"x26 tpi) - Stainless Steel

Product no.: 0723 E4251S

This is the E4251 3/8" x 26tpi above magneto/rear engine bolt set as fitted to early Norton Model 40M/Pre 48 Manx Model 40M competition models - as fitted above the magneto, with the competition type distinctive Norton type 'Wasted Head'/reduced hex curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. 

£18.00 *
In stock

Cylinder Feed Lubrication Bolt

Product no.: 0316 A11/38

This is the multi-stepped crankcase bolt that is drilled through it centre to feed oil to the back of the crankcase wall, as well as providing a means to meter the feed of oil to the cambox

£26.00 *
In stock

Cylinder Lubrication Feed Bolt Kit

Product no.: 0317 CYLFEED1

This kit of parts consists of the Cylinder Feed Bolt (A11/38), Cylinder Feed Lipped Nut (A11/878), Camfeed Adjuster Screw and nut (A11/40) + (A11/41), Adjuster screw washer (A11/40c), lipped nut Fibre Washer, 3/8" Stainless nut (for the drive side) and steel washer and fibre washer to go behind that (although this may be replaced with either Dowty washer or copper washer depending on what is in stock at the time. It also comes with instructions for setting this kit up for optimum oil setting. Buying these items as a kit provides a discount over buying the items individually

£43.00 *
In stock

SOHC Engine - Complete (Norton type) Cheesehead SS Bar-turned Screw Set

Product no.: 0091 CH HD1

Complete cheesehead screw set for SOHC engine, in stainless steel with red fibre washers - comprising : 18 screws in total - 4 cambox front bevel screws, 6 rear cambox screws, 7 timing case screws, 1 crankcase screw and high quality fibre washer set. Original Norton head pattern - see listing for details

£54.00 *
In stock
can be shipped within 60 days

13289(I) - SOHC 30/40 (Rounded Head) Front Frame Engine Bolt Set (1/2"x20 tpi) - Stainless Steel

Product no.: 0726 13289(I)

This is the 13289(Norton part number) 1/2" x 20 Engine Bolt set - but as fitted to SOHC Norton International Model 30 and Model 40 models, with the rounded head profile as would be expected on roadgoing International models.  It should be noted that Norton themselves actually used a 0.5" Stud with nuts both ends for this bolt on roadgoing models - but that was probably for convenience, so this bolt is manufactuered as a Hex head bolt, with a nut on just one end (as per the Manx equivelant, but with rounded head). The set is CNC machined from stainless steel with the correct 'reduced Hex' head and profile, 2 stainless washers and reduced Hex wider nut

 

£20.00 *
Not in stock

Norton Single Front Frame Engine Bolt Washer - Pair

Product no.: 0463 11809

Lasercut and then dull nickel plated washers to fit the 0.5" front engine bolt (i.e. the bolt that secures the front engine plates to the frame down tube). Normal 0.5" commercially available washers are too wide, these are much closer to the original washers. Price is for a pair of washers

£2.50 *
In stock

E4256(1) - SOHC Mod 30/40 International Front Engine Bolt Set (7/16" x 20 tpi) - Stainless Steel

Product no.: 0717 E4256(1)

This is the E4256 7/16" x 20 front engine bolt set as fitted to Norton International Model 30/40 (pre-Featherbed models), with the correct distinctive 'Norton type' reduced hex and curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger framed SOHC models from 1930's/50's

 

£18.00 *
Not in stock

E4251 - SOHC 30/40 (Rounded Head) Front Lower Engine Bolt Set (3/8"x 26 tpi) - Stainless Steel

Product no.: 0731 E4251

This is the E4251(Norton part number) 3/8" x 26 Engine Bolt set - front lower crankcase - approx 4pm position as fitted to SOHC Norton International Model 30 and Model 40 models. This has the rounded head profile as would be expected on roadgoing International models.  The set is CNC machined from stainless steel with the correct 'reduced Hex' head and profile, 2 stainless washers and reduced Hex wider nut

 

£16.00 *
In stock

E4262 - SOHC/OHV Cradle Frame Bottom Engine Bolt Set (5/16" x 26 tpi) - Stainless Steel

Product no.: 0716 E4262

This is the E4262 5/16" x 26 engine cradle bolt set as fitted to Norton International Model 30/40 and all other Norton models if fitted into a 'Cradle' type frame. This bolt has the normal Norton curved head shape and deeper hex than commercial 5/16" bolts.  Two of these bolts are fitted and feed through the bottom frame cradle and engine.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger cradle framed SOHC models from 1930's/50's 

 

£16.00 *
Not in stock

E4256(2) - SOHC Mod 30/40 International Rear/Short Engine Bolt Set (7/16"x20 tpi) - Stainless Steel

Product no.: 0718 E4256(2)

This is the E4256 7/16" x 20 top/rear engine bolt set as fitted to Norton International Model 30/40 (pre-Featherbed models) - above the magneto, with the correct distinctive 'Norton type' reduced hex and curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger framed SOHC models from 1930's/50's

 

£18.00 *
In stock

E4256(3) - SOHC Mod 30/40 International Rear/Long Engine Bolt Set (7/16"x20 tpi) - Stainless Steel

Product no.: 0719 E4256(3)

This is the E4256 7/16" x 20 under magneto/rear engine bolt set as fitted to Norton International Model 30/40 (pre-Featherbed models) - above the magneto, with the correct distinctive 'Norton type' reduced hex and curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. It is as used on all rigid and plunger framed SOHC models from 1930's/50's

 

£18.00 *
In stock

E4251 - SOHC Mod 40(350) Inter Rnded Head Rear/Long Engine Bolt Set (3/8"x26 tpi) - Stainless Steel

Product no.: 0720 E4251L(Int)

This is the E4251 3/8" x 26tpi below magneto/rear engine bolt set as fitted to early Norton International Model 40/Pre 48 Manx Model 40M (pre-Featherbed models) - as fitted below the magneto, with the roadgoing type distinctive 'Norton type' rounded head/reduced hex curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel

 

£18.00 *
In stock

E4251 - SOHC Mod 40(350) Inter Rnded Head Rear/Short Engine Bolt Set (3/8"x26 tpi) - Stainless Steel

Product no.: 0721 E4251S(Int)

This is the E4251 3/8" x 26tpi above magneto/rear engine bolt set as fitted to early Norton International Model 40/Pre 48 Manx Model 40M (pre-Featherbed models) - as fitted above the magneto, with the roadgoing type distinctive 'Norton type' rounded head/reduced hex curved head profile.  The set consists of hex head bolt, deep nut and two washers - CNC manufactured by ourselves in Stainless Steel. 

£18.00 *
In stock

SOHC E4268 7/16" x 20tpi BSC Rear Frame Bolt - Stainless Steel

Product no.: 0715 E4268_1

This is the distinctive E4268 7/16" x 20 tpi BSC short engine bolt that was used to bolt the rear engine plates to the upright frame tube on most 1930s - 1950s Norton frames.  These are CNC machined by us in stainless steel (with linished flats).  

£4.80 *
In stock

SOHC E3227 1/2" x 20tpi BSC Nut for Front Frame Engine Bolt - Stainless Steel

Product no.: 0728 E3227

This is the E3227 0.5" x 20tpi nut that is used on the front downtube engine bolt on Model 30/40 and M30/M40, CS1/CSJ models.  The nut follows original Norton profile - i.e. being a reduced sized Hex and deeper in depth than other commercial 0.5" nuts. The nut is CNC manufactured by us in non rusting stainless steel

 

£2.40 *
In stock

SOHC E3238 7/16" x 20tpi Engine Bolt Nut - Stainless Steel

Product no.: 0669 E3238

This is the E3238 7/16" x 20 tpi engine nut as fitted to many Norton engine bolts.  It has the correct 'reduced head' and greater depth than other commercially available nuts of this thread/size - and is CNC made specially by us for fitting to Norton engine bolts, but in stainless steel 

£2.00 *
In stock

SOHC E3224 3/8" x 26tpi BSC Engine Bolt Nut - Stainless Steel

Product no.: 0667 E3224_1

This is the E3224 3/8" x 26 tpi BSC engine nut as fitted to many Norton engine bolts.  It has the correct 'reduced head' and greater depth than other commercially available nuts of this thread/size - and is CNC made specially by us for fitting to Norton engine bolts, but in stainless steel 

£1.80 *
Not in stock

SOHC E3223 5/16" x 26tpi BSC Engine Cradle Bolt Nut - Stainless Steel

Product no.: 0714 E3223_1

This is the E3223 5/16" x 26 tpi BSC cradle engine bolt - two of which were fitted to each Norton single engine fitted to a cradle frame. 

£1.70 *
In stock

Manx Bolt-thru Petrol Tank - 5/16" BSC Domed Nuts: Stainless Steel Polished

Product no.: 0125 A11M/837(N)

- This is the domed nut used on the top of Norton Manx Plunger petrol tanks - Manufactured in stainless steel - Employs 5/16" B.S.Cycle thread, so can be used for other purposes if desired - These look beautiful lightly polished when used in conjunction with my stainless dished washers - Price is per each

£2.90 *
In stock

3/8" Stainless Steel Engine Bolt Washer - Reduced Outer Diameter: Bag of 10

Product no.: 0694 3_8_ROD

3/8" Stainless Steel Engine Bolt Washers, but with Reduced Outer Diameter, which are correct for some Norton 3/8" engine bolts as used on SOHC engines: Price is for bag of 10

£3.20 *
Not in stock

7/16" Stainless Steel Engine Bolt Washer - Reduced Outer Diameter: Bag of 6

Product no.: 0661 7_16_ROD

7/16" Stainless Steel Engine Bolt Washers, but with Reduced Outer Diameter, which are correct for Norton 7/16" engine bolts as used on SOHC engines: Price is for bag of 6. Please read detail description 

£2.30 *
In stock

7/16" Stainless Steel Spring Washer (Alternative Reduced O/D Engine Bolt Washer) : Bag of 10

Product no.: 0695 SW005

7/16" Stainless Steel Engine Bolt Spring Washers.  Alternative to item 0661 - Reduced Outer Diameter plain washers.  Used on Norton 7/16" Engine Bolts with reduced hex heads as used on SOHC engines: Price is for bag of 10

£3.50 *
In stock

1/2" Stainless Steel Engine Bolt Washer - Reduced Outer Diameter: Bag of 6

Product no.: 0662 1_2_ROD

1/2" Stainless Steel Engine Bolt Washers, but with Reduced Outer Diameter, which are correct for the front Norton 1/2" engine/frame bolt as used on SOHC engines (as well as other 1/2" bolts where you do not want to fit a standard wide type washer : Price is for bag of 6

£2.70 *
In stock
*
Recommended Retail Price, plus delivery